Ceco DEAN PUMP RA Series User manual

Fan Cooled Hot Oil Pumps
Instructi n Manual MC 1.4.42
DO NOT INSTALL, OPERATE, OR SERVICE THIS PUMP
BEFORE READING THE ENTIRE MANUAL
DEAN PUMP® SERIES RA

INDEX
Product Insp ction and T st . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
R c iving Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Storag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
M chanical D sign Sp cifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Standard Mat rials of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Allowabl Working Pr ssur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Application and R application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Pump Foundation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Bas plat Mounting and Alignm nt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Suction and Discharg Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Pump and Driv r Alignm nt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Allowabl Piping Loads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Small Piping Conn ctions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Pump Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
B arings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
M chanical S al . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Starting th Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Filling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Op rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Pump Start-Up Ch cklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
Spar Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Ord ring Spar Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
Pump S ction Vi ws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Disass mbly and R ass mbly Proc dur s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Disass mbly Proc dur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
R ass mbly Proc dur . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Th Products of D an Pump Division ar subj ct to thorough and
rigorous quality control and insp ction proc dur s throughout th
whol of th manufacturing proc ss to assur prop r op ration in
full conformity with stablish d p rformanc standards. On
compl tion of insp ction, ach unit is spray d int rnally with rust
inhibitor (if mat rial is subj ct to atmosph ric corrosion), s al d
against th ntranc of dirt, and tagg d with a sign d c rtificat of
insp ction prior to shipm nt. Each pump wh n shipp d is r ady to
p rform th s rvic for which it was d sign d with minimum
maint nanc and xp ns if prop rly install d and op rat d in
accordanc with th instructions furnish d.
PRODUCT INSPECTION AND TEST
1
R ad th instruction manual compl t ly b for installing, filling,
op rating, or maintaining this quipm nt.
Obtain, r ad and h d th MSDS (Mat rial Saf ty Data Sh t) for
th fluids b ing handl d b for att mpting to fill, op rat or main-
tain this quipm nt. Obtain instructions from th Saf ty Engin r
r sponsibl for your facility b for p rforming any work on th
pumping quipm nt and syst ms.
Prop r storag whil not in us and prop r installation and startup
ar ss ntial for succ ssful pump op ration. Misus or improp r
storag , installation or op ration of pumps may r sult in s rious loss
or damag . D an Pump Division is not r sponsi bl for any loss or
damag r sulting from caus s b yond its control, and is not liabl
for charg s for work p rform d or mat rials furnish d to r pair such
loss or damag .
All installation, operation, and maintenance must be done by thor-
oughly qualified personnel in strict accordance with this manual and
must comply with all local, state and Federal codes. Only Dean
authorized service parts must be used in the repair of these pumps.
RECEIVING PUMP
When the pump is received from the transportation company it
should be promptly inspected for damage and such damage noted
on the bill of lading before it is signed. Claims for shipping damage
must be filed against the carrier.
Care must be exercised in unloading and handling the pump.
STORAGE
Pumps must b prop rly cov r d and prot ct d against mois tur ,
dirt, and physical damag during storag prior to installa tion.
If prolong d storag is anticipat d, do th following:
1) S al th suction op ning of th pump with a blind flang ,
gask t, and bolts.
2) Fill through th discharg op ning of th pump with a
corrosion inhibiting liquid that is also compatibl with th liq-
uid that will lat r b pump d. Evaluation of compatibility
must includ consid ration of th t mp ratur at which th
syst m will lat r op rat . R mov th s al v nt plug whil fill-
ing to assur that all air is purg d from th m chanical s al
cavity. Wh n th liquid flows through th v nt conn ction,
r plac th s al v nt plug. If liquid do s not flow from this
conn ction, fill through this conn ction until all air is purg d.
3) Continu filling through th discharg op ning until th
pump is compl t ly fill d.
4) S al th discharg op ning with a blind flang , gask t, and
bolts.
5) R mov th barri r oil fill plug. Fill th barri r cavity with a
corrosion inhibiting liquid that is compatibl with th barri r
liquid that will b us d lat r for pump op ration. Wh n this
liquid starts to flow out of th ov rflow pip , r plac th fill
plug.
6) R mov th b aring nd cov r (28) and fill th c nt r pock-
t of th nd cov r with th gr as d scrib d und r “PUMP
LUBRICATION”. R plac and s cur th nd cov r.
7) Apply a h avy prot ctiv coating to all xpos d machin d
surfac s. A rust pr v ntiv must b us d to prot ct all st l
and iron parts.
8) Rotat th pump shaft “by hand” ach month. W ar h avy
glov s wh n rotating th shaft, to prot ct your hands.
Wh n you ar r ady to plac th pump in s rvic ;
1) R mov th b aring nd cov r (28). R mov and discard
about on half of th gr as that is in th nd cov r. R plac
and s cur th nd cov r (s ass mbly instructions). B sur
to comply with all gov rnm nt r gulations in th disposal of
th gr as .
2) R mov th barri r oil drain plug, drain and discard th stor-
ag liquid. R mov th barri r oil fill plug. Flush all r mains
of th storag liquid from th barri r cavity. R plac th fill
and drain plugs. Us a flush liquid that is compatibl with th
barri r fluid to b us d. B sur to comply with all gov rn-
m ntal r gulations in disposal of th storag liquid and th
flush liquid.
3) R mov and discard th discharg bolts, nuts, blind flang ,
and gask t. R mov th casing drain plug and th s al v nt
plug. Drain and discard th storag liquid. R mov and
discard th suction bolts, blind flang , and gask t. Stand th
pump up on its suction flang to allow r sidual liquid to
drain. Flush all r mains of th storag liquid from th pump.
Us a flush liquid that is compatibl with th pumpag , as
any flush liquid r maining in th pump wh n it is plac d in
op ration, will b xpos d to th op rating t mp ratur s
and pr ssur s. Vapor pr ssur is “on ” of th critical
prop rti s to b consid r d. B sur to comply with all
nvironm ntal r gulations in disposal of th storag liquid,
flush liquid, and gask ts.
WARNING
HAZARDOUS SITUATIONS MAY OCCUR UNLESS THIS EQUIPMENT IS APPLIED, INSTALLED, OPERATED,
AND MAINTAINED BY THOROUGHLY QUALIFIED PERSONNEL IN STRICT ACCORDANCE WITH THE
INSTRUCTION MANUAL AND ALL APPLICABLE DRAWINGS AND CODES.

WARNING:
Be sure that there is nothing remaining in the pump that could react
with the liquid that will be pumped or that would have an excessive
vapor pressure at the system operating temperature. For example,
water residue left in the pump, when exposed to the operating tem-
perature of the system, would create a vapor pressure in excess of
the capability of the system to retain it, therefore causing an explo-
sion that could prove fatal.
4) R plac th casing drain plug and th s al v nt plug.
5) R mov th “storag ” prot ctiv coating from th xt rnal sur-
fac s of th pump.
Pumps must also b prot ct d from moistur , dirt, and physical dam-
ag , during and aft r installation whil th syst m is b ing compl t-
d. Pumps “stor d” on th ir foundations must b compl t ly ch ck d
for prop r installation prior to start-up.
Car in storag and installation will pr s rv th built-in quality of
ach D an Product.
RA SERIES
FAN COOLED, HORIZONTAL, SINGLE STAGE, END SUCTION, ENCLOSED IMPELLER, CENTRIFUGAL HOT OIL PUMPS. THESE PUMPS ARE
DESIGNED SPECIFICALLY FOR USE WITH HEAT TRANSFER OILS. THESE PUMPS WILL NOT WORK ON OTHER LIQUIDS.
2
MECHANICAL DESIGN SPECIFICATIONS
ALLOWABLE WORKING PRESSURE VS. PUMPING TEMPERATURE
(1) Cast Iron
(2) AISI 1020
(3) SAE Grad 5 or ASTM A449
Typ 1 St l
(4) AISI 4140 ASTM AI93-B7 St l
(5) ASTM AI94 Grad 2 St l
(7) Hard n d Iron
THESE PUMPS ARE DESIGNED SPECIFICALLY FOR USE WITH
HEAT TRANSFER OILS. THESE PUMPS WILL NOT WORK ON
OTHER LIQUIDS.
PUMP TYPE RA2096 RA3146 RA31 6
Dir ction of Rotation
(Vi w d from Coupling End) CW CCW CCW
Casing Thickn ss, Minimum 5/16”5/16”5/16”
Corrosion Allowanc 1/8”1/8”1/8”
Imp ll r Balanc
Standard
Optional Extra Singl Plan Dynamic Singl Plan Dynamic Singl Plan Dynamic
Flang s
ANSI Class
Facing
Finish
150
Flat Fac
125 Ra
300
Rais d Fac
125 Ra
300
Rais d Fac
125 Ra
Suction Pr ssur , Maximum 100 PSIG 100 PSIG 100 PSIG
Hors pow r Rating, Maximum
@3500 RPM
@1750 RPM
@1150 RPM
35
15
10
100
40
25
250
125
75
B arings:
Thrust B aring, Ball Typ ,
Gr as Lubricat d
Rarial B aring, Sl v Typ ,
Pumpag Lubricat d
5306 2RS
Doubl Row 7308 BG Angular Contact Pair 7311 BG Angular Contact Pair
S al Chamb r Dim nsions
L ngth (D pth)
Insid Diam t r (Bor Dia.)
Shaft Diam t r
1 5/8”
2 1/16”
1 1/8”
2 13/16”
3 1/8”
1 3/4”
3 7/8”
4 5/16”
2 1/4”
Pump Shaft Dim nsions
Span B tw n B arings
Span B tw n Radial
B aring C nt rlin and
Imp ll r C nt rlin
Diam t r at Coupling
Diam t r B tw n B arings
Diam t r at Imp ll r
8 11/16”
1 5/8”
7/8”
15/16”
3/4”
11 7/16”
2 5/16”
1 1/8”
1 9/16”
1 1/8”
14 5/8”
3 1/4”
1 5/8”
1 7/8”
1 1/2”
L3/D44.3 2.1 2.8
Mat rial Class 22 (Ductil Iron) 22 (Ductil Iron) 22 (Ductil Iron)
Maximum Working Pr ssur 250 PSIG @100ºF 350 PSIG 350 PSIG
Pumping T mp ratur
Minimum
Maximum -20ºF @ 250 PSIG 650ºF @ 125 PSIG -20ºF 650ºF-20ºF 650ºF
Maximum Ambi nt T mp ratur
(t mp. within 12” of pump) 104ºF 118ºF 118ºF
Hydrostatic T st Pr ssur 430 PSIG 550 PSIG 550 PSIG
Part No. Part Name RA2096
Class 22 RA3146 Class 22 RA31 6 Class 22
3 Imp ll r C.I. (1) C.I. (1) C.I. (1)
*4 Imp ll r K y St l (2) St l (2) St l (2)
5 Casing D.I. (10) D.I. (10) D.I. (10)
5A Casing Drain Plug St l (2) St l (2) St l (2)
5C Casing Stud Nut N.A. St l (5) St l (5)
5D Casing Stud/Cap Scr w St l (3) Scr w St l (4) Stud St l (4) Stud
6A Casing Ring (Only Som Siz s) N.A. Iron (7) Iron (7)
9 B aring Housing Foot St l (2) St l (2) St l (2)
*12 Imp ll r Bolt/Nut St l (2) Nut St l (2) Bolt St l (2) Bolt
*12A Imp ll r Wash r St l (2) St l (2) St l (2)
*13 M chanical S al Gland St l (2) St l (2) St l (2)
*25A Shaft B aring – Thrust – Ball Doubl Row Angular
Contact Pair Angular Contact Pair
26 B aring Housing D.I. (10) D.I. (10) D.I. (10)
*28 B aring End Cov r C.I. (1) St l (2) D.I. (9)
*29 Pump Shaft 11-13 S/S
(12) 11-13 S/S (12) 11-13/316 S/S (8)
*31 Thrust B aring Lock Nut N.A. St l (2) St l (2)
*31A Thrust B aring Lock Wash r N.A. St l (2) St l (2)
56 Casing Foot N.A. C.I. (1) C.I. (1)
*75 Snap Ring N.A. St l (2) N.A.
*75A Snap Ring St l (2) N.A. N.A.
*76 Gr as S al – Front Viton (13) Viton (13) Viton (13)
*76A Gr as S al – R ar N.A. Buna (14) Buna (14)
77 Casing Gask t Grafoil (11) Grafoil (11) Grafoil (11)
*77B B aring End Cov r Gask t N.A. Buna (14) Buna (14)
*84 Barri r Oil Fill Plug St l (2) St l (2) St l (2)
*92 Barri r Oil Drain Plug St l (2) St l (2) St l (2)
*95A M chanical S al Stationary Silicon Carbid
& Viton Silicon Carbid & Viton Silicon Carbid & Viton
*95B M chanical S al Rotary S/S, Carbon
& Viton S/S, Carbon & Viton S/S, Carbon & Viton
98 Coupling Guard St l (2) St l (2) St l (2)
*120 Fan Aluminum Aluminum Aluminum
*121 Fan Collar N.A. St l (2) St l (2)
*122 Fan Clamp Ring St l (2) St l (2) St l (2)
*180 Radial B aring Cartridg Carbon & St l Carbon & St l Carbon &
416 S/S
*325 S al Gland Gask t Viton (13) Viton (13) Viton (13)
*365 M chanical S al R tain r St l (2) St l (2) St l (2)
*370 S al R tain r S t Scr w St l St l St l
*375 Anti-Rotation Pin N.A. N.A. 316 S/S
(8) ANSI 316 S/S with ANSI 416 S/S at th sl v b aring
(9) Ductil Iron – ASTM A536
(10) Ductil Iron – ASTM A395
(11) Grafoil®
(12) ANSI – 420 S/S
(13) Viton®Elastom r
(14) Buna N Rubb r
Viton®is a r gist r d Trad mark of E.I. DuPont Co.
Grafoil®is a r gist r d Trad mark of Union Carbid Corp.
*D not s parts int rchang ability in all pump siz s of a giv n s ri s.
STANDARD MATERIALS OF CONSTRUCTION

Obtain MSDS data sheets for all liquids (from the manufacturers of
those liquids) being used with the pump, and heed all cautions.
Always w ar th appropriat prot ctiv appar l wh n working on
or around th pumping quipm nt. Saf ty glass s with sid shi lds,
h avy work glov s (us insulat d work glov s wh n handling hot
it ms), st l-to d sho s, hard hat, and any oth r prot ctiv g ar as
n d d for prot ction. On xampl of oth r g ar would b
br athing apparatus wh n working n ar toxic mat rials. Us lifting
d vic s, manufactur d xpr ssly for th purpos of lifting, to mov
th pumping machin ry. Do not att mpt to lift th ass mbly or its
compon nts manually. Us only d vic s with lifting capabiliti s in
xc ss of th w ight of th unit b ing lift d. Insp ct straps, chains,
hooks, tc. for damag and lifting capability b for us .
P rsonal injury, d ath, and/or quipm nt damag could occur if
good lifting practic s ar not us d.
APPLICATION AND REAPPLICATION
At th tim of installation, th quipm nt r c iv d should hav
alr ady b n s l ct d for th s rvic r quir d. You must r ad th
pap rwork for th installation and ch ck th s rial numb r of th
pump to assur that you ar installing th corr ct pump into th s r-
vic for which it was s l ct d.
Many pumps look id ntical from th outsid but can b mad of dif-
f r nt mat rials and/or b construct d diff r ntly insid . P rsonal
injury, d ath, quipm nt damag , product (pumpag ) damag ,
and/or product loss could occur if th incorr ct pump is install d.
Do not transf r an xisting pump to any oth r s rvic conditions
until you hav thoroughly r vi w d th pump construction, mat ri-
als, sizing, s aling, pr ssur containing capability, h ad/capacity
capability, and t mp ratur capability with r sp ct to th r quir d
s rvic . Consult your D an Pump sal s ngin r with all th s rvic
r quir m nts and a full d scription of th xisting pump (including
th s rial numb r), s al, and sub-syst ms so that w can assist you
in a succ ssful r application.
PUMP FOUNDATION
Th pump foundation provid s rigid support to th bas plat and
maintains th xact alignm nt of th pumping unit. Bas plat s ar
d sign d to rigidly support th pump and driv r without vibration
or distortion only wh n th y ar prop rly s t, l v l d, and s cur d
to th foundation.
Th purchas r may l ct to mount th pump without grouting th
bas plat . In any cas th bas plat must b fully support d by th
custom r’s mounting m ans to pr v nt vibration and distortion.
BASEPLATE MOUNTING AND ALIGNMENT
Th s qu nc of mounting which must b obs rv d for prop r bas -
plat and pump mounting is:
1) Plac bas plat , with pump and driv r mount d th r on, on
th pump foundation.
2) Us w dg s und r th bas plat dg s, at ach foundation
bolt, to prop rly support and l v l th unit. Ch ck this with
a spirit l v l. Pull down th bas plat mounting bolt nuts
tightly and r ch ck for l v l. Corr ct if n c ssary.
3) Align th driv r to th pump. S “Pump and Driver
Alignment’’ on pag 5.
4) Grout th bas plat . Do not grout the baseplate to the foun-
dation until the pump and driver are correctly aligned.
Chann l typ bas plat s ar mad with op n nds to allow
asy grouting and do not r quir grouting hol s in th bas -
plat . Fabricat d structural st l bas plat s ar provid d
with grouting hol s. Fill th ntir void und r th bas plat
with grout and firmly mb d th bas plat dg s.
5) Install “n w” gask ts, of th corr ct mat rial for th s rvic ,
and th corr ct siz p r ASME B16.20, or ASME B16.21
at th suction and th discharg flang s of th pump. Us
only n w gask ts.
Conn ct th suction and discharg piping without forcing
th piping into position. S “Suction and Discharge Piping”
b low. Th pip flang s must lin up with th pump flang s
“fr ly”.
Install a “n w” bolt, of th corr ct siz p r ASME/ANSI
B16.5, and of th corr ct mat rial p r ASME/ANSI B16.5,
in v ry bolt hol . Tight n all bolts v nly. Us only n w
uncorrod d fast n rs.
WARNING:
Strain caused by “forcing”, improper flange bolting, and/or mis-
alignment may cause failure of the pumping unit, flanges, piping
and/or fluid (pumpage) release which could cause personal in ury,
death, and/or damage to this and/or other equipment.
WARNING:
Make sure that all piping is installed into its correct connection.
Installation of a pipe into an incorrect location could result in an
explosion and personal in ury or death as well as damage to this
and/or other equipment.
Install pressure relief valves in any cavities that could be sub ected
to pressures in excess of the allowable working pressure. Explosion,
personal in ury, death, and/or damage to this and/or other equip-
ment may occur if pressure exceeds allowable.
6) R ch ck th alignm nt b tw n th driv r (motor, turbin , or
ngin ) and pump shafts. Installation of piping may hav
forc d th pump out of alignm nt. If so, corr ct th piping to
r mov th distorting load, and r align th pump and driv r..
7) Th pump and driv r alignm nt must again b ch ck d at
th op rating t mp ratur and alignm nt corr ct d und r
th hot condition.
8) Aft r about two w ks of normal pump op ration th pump
and driv r alignm nt should again b ch ck d und r th hot
condition. If alignm nt is still corr ct, th driv r f t may b
dow l d to th bas plat . If th alignm nt has chang d,
r align th unit and r ch ck aft r two w ks.
INSTALLATION
TYPICAL FOUNDATION LAYOUT
3

SUCTION AND DISCHARGE PIPING
Suction and discharg nozzl siz s of D an pumps ar s l ct d for
prop r p rformanc of th pumping unit and ar not int nd d to
d t rmin th suction and discharg pip siz s. Pip siz s must b
d t rmin d by th us r bas d on th syst m r quir m nts.
Suction piping should hav a minimum friction loss and thus should
b as short and straight as possibl with a pip diam t r as larg
as conomically f asibl for th flow rat handl d.
Suction piping should n v r b small r in diam t r than th suction
nozzl siz . Wh n th suction piping is larg r than th suction noz-
zl siz an cc ntric r duc r is r quir d at th suction flang and
must b install d with th tap r locat d on th und rsid to limi-
nat air or vapor pock ts. Th s ction of piping attach d to th suc-
tion flang of th pump should b straight for a l ngth of ight pip
diam t rs or mor .
Discharg piping may b th sam siz as, larg r, or small r than
th discharg nozzl as th syst m flow may d mand.
In n w installations or r built syst ms, dirt, pip scal , w lding slag,
and g n ral construction d bris may g t into th piping. It is impor-
tant to pr v nt this mat rial from nt ring th pump and damaging
pump parts, b arings, m chanical s al fac s, or lip s als. B arings,
m chanical s als and lip s als ar sp cially subj ct to damag
v n by v ry small particl s. To pr v nt damag , a strain r or filt r
install d in th suction lin is r comm nd d. Comm rcially avail-
abl strain rs or filt rs as r comm nd d by th ir manufactur rs can
do an xc ll nt job.
xp ri nc d. Failure to properly align the unit will result in
vibra tion, short bearing life, and reduced mechanical seal life.
Pumps ar not construct d to b us d as pip anchors. Both suction
and discharg piping must b support d ind p nd ntly of th
pumping unit and th rmal xpansion joints provid d to guard
against xpansion loads on th pump. Pip s should b anchor d
b tw n th xpansion joint and th pump and as clos ly to th
pump as possibl . Failur to provid prop r piping support and
xpansion joints may impos strains on th pump ing unit which will
r sult in s rious misalignm nt. Maximum allowabl piping loads
ar shown on pag 6 in this manual.
No allowanc for th rmal xpansion is mad for motor driv n units
in mounting th driv r. Allowanc for turbin mounting should b in
accordanc with th turbin manufactur r’s r comm ndations.
Final alignment must always be checked and corrected at the
operating temperatures of the pump and driver.
Misalignm nt of th two shafts is of two kinds. Th first of th s is
angular misalignm nt wh r th axis of on shaft is at an angl
from th oth r. Th oth r is offs t alignm nt wh r th c nt r of on
shaft is offs t from th c nt r of th oth r shaft. Th s ff cts usual-
ly occur tog th r so that both angular and offs t misalignm nt ar
pr s nt.
Coincid nt alignm nt of th driv r and pump shaft is m asur d at
th fac s of th coupling hubs. B caus of th vari ty of coupling
typ s furnish d at custom r’s r qu st, th proc dur h r giv n is
g n ral in natur but may b appli d by simpl adaption to most
coupling typ s.
Th pump was shipp d with th coupling spac r not install d, to
allow alignm nt and motor rotation ch ck. If, how v r, som on
has install d this spac r ass mbly, r mov it at this tim . Th
RA2096 pumps ar shipp d with on of th coupling spac r
flang s bolt d to th pump hub to s cur th cooling fan (It m
#120) for shipping. Loos n th four bolts that ar s curing this
flang and r mov it.
To on of th coupling hubs, ith r on th motor shaft or th pump
shaft, attach a dial indicator. Mount th indicator so that th
indicator button rid s on th fac of th oth r coupling hub n ar th
outsid diam t r of th hub. R f r nc th illustration “INDICATOR
SETUP TO READ ANGULAR MISALIGNMENT” b low. Rotat th
shaft to which th dial indicator is clamp d, allowing th indicator
button to rid on th fac of th stationary hub. Th indicator dial
mov m nt will show th diff r nc in th distanc b tw n th two
hubs. This indicat s th amount of angular misalignm nt b tw n
th hubs and th r for th shaft ax s. Good practic sugg st align-
m nt to within 0.002" T.I.R. (Total Indicator R ading).
TYPICAL PUMP PIPING
Suction lin scr ns or strain rs may usually b r mov d wh n,
aft r s v ral days of us , no dirt has b n coll ct d and th syst m
is cl an.
R m mb r that scr ns and filt rs in th suction lin ar r stricting
d vic s which r duc th n t positiv suction h ad (NPSH) avail-
abl to th pump and should b consid r d at th tim th syst m
is d sign d.
PUMP AND DRIVER ALIGNMENT
Prop r running lif of a pump and driv r unit d p nds on th accu-
racy with which th axis of th driv r shaft coincid s with th axis
of th pump shaft wh n th unit is running. Although pumps and dri-
v rs ar ch ck align d at th factory, this is only to confirm that th
unit can b align d in th fi ld as handling during shipm nt and
installation will caus th alignm nt to chang .The pump and dri-
ver alignment must always be checked and corrected before the
baseplate is grouted to the foundation and again before the pump
is first started. If th bas plat mounting instructions hav b n
car fully fol low d, no difficulti s in making th alignm nt should b
INDICATOR SETUP TO READ ANGULAR MISALIGNMENT
4

5
To ch ck th offs t alignm nt, mount th dial indicator as shown in
th illustration “INDICATOR SETUP TO READ OFFSET MISALIGN-
MENT” b low, with th indicator button on th outsid diam t r of
th stationary hub, n ar th fac of th hub clos st to th nd of th
shaft. It may b n c ssary, on th RA2096 pumps, to slid th cool-
ing fan (120) clos r to th pump, to obtain nough cl aranc for
th dial indicator, d p nd nt of cours upon th typ of indicator
us d. If n c ssary, th fan could b r mov d, and r plac d aft r
th motor alignm nt is compl t d. Rotat th shaft, to which th dial
indicator is clamp d, allowing th indicator button to rid on th
outsid diam t r of th stationary coupling hub. Th indicator dial
mov m nt will show th diff r nc in th c nt r locations of th two
shafts. Good practic sugg st alignm nt to within 0.002" T.I.R.
Angular and offs t alignm nt is adjust d by moving th motor sid -
ways and up and down to bring th motor into xact alignm nt
with th bolt d down pump. Th motor is mov d up and down by
adding and r moving thin m tal shims b tw n th motor f t and
th bas plat . If misalignment is of ma or proportions, the base-
plate has been improperly installed on the foundation and must be
releveled before proceeding with alignment.
Aft r ach chang , it is n c ssary to r ch ck both angular and off-
s t alignm nt of th coupling. Aft r th pump and driv r ar
align d, tight n all hold-down bolts and th n r ch ck alignm nt.
The closer the running alignment, the longer the running life will be.
INDICATOR SETUP TO READ OFFSET MISALIGNMENT

SMALL PIPING CONNECTIONS FOR “RA” PUMPS
6
ALLOWABLE PIPING LOADS FOR RA2096, RA3146 AND RA31 6 PUMPS
MAXIMUM FORCES ON FLANGES
FOR SUCTION FLANGE
+/-Fx≤ 200 LBS./NOM.IN. ≤ 1.2W
+/-Fy≤ 130 LBS./NOM.IN. ≤ 0.6W
+/-Fz≤ 160 LBS./NOM.IN. ≤ 1.0W
Fr= (Fy2+ Fz2)1/2 ≤ 2000 LBS
FOR DISCHARGE FLANGE
+/-Fx≤ 160 LBS./NOM.IN. ≤ 1.3W
-Fy≤ 200 LBS./NOM.IN. ≤ 1.2W
+Fy≤ 100 LBS./NOM.IN. ≤ 0.5W
+/-Fz≤ 130 LBS./NOM.IN. ≤ 1.0W
Fr= (Fx2+ Fz2)1/2 ≤ 2000 LBS
WHERE
F = FORCE IN POUNDS
Fr= RESULTANT FORCE
W = WEIGHT OF PUMP ONLY, IN POUNDS
RA2096 1 x 11⁄2x 6 105 278 192 91
RA2096 11⁄2x 3 x 6 115 277 265 91
RA2096 1 x 11⁄2x 8 125 278 132 91
RA3146 1 x 3 x 81⁄2195 690 340 725
RA3146 11⁄2x 3 x 81⁄2220 690 340 725
RA3146 2 x 3 x 81⁄2245 690 340 725
RA3146 3 x 4 x 81⁄2270 725 295 600
RA3146 4 x 6 x 81⁄2310 785 320 600
RA3146 11⁄2x 3 x 10 240 760 310 600
RA3146 2 x 3 x 10 275 760 310 600
RA3146 3 x 4 x 10 305 830 340 600
RA3146 4 x 6 x 10 #2 345 950 340 600
RA3186 4x 6 x 10 #1 460 2300 1850 800
MAXIMUM MOMENTS APPLIED TO A PUMP ON A FULLY BOLTED AND GROUTED BASEPLATE. LOADS ARE TO BE
APPLIED ONLY THROUGH THE SUCTION AND DISCHARGE FLANGES.
Maximum allowabl forc s and mom nts
calculat d from th s forc quations or th
tabulat d mom nt tabl s ar thos r sulting in
a maximum of .010 inch mov m nt of th
shaft m asur d at th shaft coupling wh n th
pump is mount d on its bas plat and that
bas plat is fully bolt d to a prop rly
d sign d foundation and is fully grout d in
plac . For a full discussion s API Standard
610, 5th Edition.
Pump Size Wt.-Lbs. MXMYMZ
Pump Only Lb.Ft. Lb.Ft. Lb.Ft.
DATA SHEET #1198F
BARRIER OIL FILL
3⁄8" NPT, PLUGGED
BARRIER OIL DRAIN
3⁄8’’ NPT, PLUGGED
BEARING
GREASE
RELIEF
1⁄8" NPT,
PLUGGED
SEAL VENT,
3⁄8" NPT FOR RA3146,
1⁄2" NPT FOR
RA3186, PLUGGED
SEAL VENT/FILL
3⁄8" NPT PLUGGED
PUMPAGE LEAK DETECTION,
AND BARRIER OIL OVERFLOW PUMPAGE LEAK DETECTION,
AND BARRIER OIL OVERFLOW
RA2096 RA3146 AND RA31 6
BARRIER OIL FILL
3⁄8" NPT, PLUGGED
DISCHARGE
FLANGE
SUCTION
FLANGE
Fy
Fy
Fz
Fz
Fx
Fx
Mx
My
Mz
BARRIER OIL DRAIN
3⁄8" NPT, PLUGGED

7
BEARINGS
Th radial b aring (180) is lubricat d by th liquid b ing pump d
and th r for n ds no xt rnal lubrication.
Th thrust b aring(s) (25A) ar gr as pack d “for lif ” and r quir
no furth r lubrication until th pump is r built.
Th RA2096 us s a “s al d for lif ” b aring that is pack d with
gr as by th ball b aring manufactur r.
Th RA3146 and RA3186 hav ball b arings that ar hand
pack d as an ass mbly proc dur wh n th pump is ass mbl d.
Th gr as is a lithium 12-hydroxyst rat soap-thick n d gr as
that has rust inhibitors and xtr m pr ssur additiv s. This is a
NLG1, Grad 2, similar to –
Sh ll Oil Company’s “Alvania” Gr as #EP2 or
Union Oil of California’s “Unoba EP” Gr as Grad 2
Gr as is also availabl from D an Pump in individual contain rs.
On contain r is r quir d for a RA3146 pump. Two contain rs ar
r quir d for a RA3186 pump. Ord r “RA3000” Gr as #2 for
b aring lubrication.
MECHANICAL SEAL
Th “RA” pumps ar arrang d with a m chanical fac s al (95A
and 95B) that was sp cifically s l ct d for s aling th mor
commonly us d h at transf r oils. Som of th h at transf r oils
“oxidiz ”. Th manufactur r of any h at transf r oil that oxidiz s
will r comm nd that a nitrog n gas blank t b maintain d on
th xpansion tank of th syst m to assur that oxyg n cannot
com in contact with th oil. Th “RA” pumps hav a cavity pro-
vid d b tw n th m chanical s al stationary (95A) and th
front gr as s al (76) to allow th us of a barri r fluid to k p
oxyg n away from th m chanical s al fac s wh n op rating
with an oxidizing oil.
All “oils” will oxidiz at som point d p nding upon th amount of
air contamination and th t mp ratur . Most “oils” will b gin to
oxidiz at 250°F. Som “oils” will oxidiz as low as 150°F. Th oxi-
dation rat doubl s for v ry 18 to 20°F incr as in t mp ratur ,
so it is v ry important to not us a barri r fluid that has a low oxi-
dation t mp ratur . Th us r should ch ck to s at what t mp ra-
tur his oil will start to oxidiz .
Wh n th oil b ing pump d is on that oxidiz s, a barri r fluid
should b us d. S l ct a fluid to b us d as th barri r fluid that is
compatibl with th pumpag and not d trim ntal to th lip s al,
b arings, m chanical s al, or th b aring housing. Th b st fluid to
us is nitrog n, but many custom rs pr f r to us a liquid inst ad
of a gas. Many oil compani s produc a (barri r) oil that would b
compatibl with th oil b ing pump d, m chanical s al lastom rs,
lip s al, b arings, b aring gr as , and th b aring housing. Two
xampl s of this typ of oil ar Calflo AF (P tro-Canada) and
Dowth rm RP (Dow Ch mical). Th us r should ch ck with his oil
suppli r for his r comm ndation for a non-oxidizing or low oxidiz-
ing oil to us as a barri r. Som tim s th oil b ing pump d can b
us d as th barri r fluid.
Sinc most of our custom rs ar using a liquid as a barri r fluid, th
pump is suppli d with th barri r oil piping shown at th bottom of
pag 6.
Wh n using a liquid barri r fluid, th barri r cavity is fill d through
th pip t locat d dir ctly abov th cavity. R mov th 3/8" pip
plug (84) from th top of th t (s th drawing at th
bottom of pag 6) and pour th barri r liquid into th t until th
liquid l v l is flush with th bottom of th pip nippl that xt nds
horizontally out of th sid of th t . Any xc ss abov this l v l
will run out on to th bas plat . Rotat th shaft by hand (w ar
glov s for this op ration) to h lp r mov any trapp d air pock ts.
R fill to pr vious l v l and r plac th pip plug (84).
If nitrog n is to b us d as th barri r fluid, th barri r piping must
b modifi d, from that shown on pag 6, to that shown b low.
R mov th v rtical ov rflow pip nippl , th 3/8" pip lbow, and
th horizontal pip nippl conn cting th pip lbow to th pip
t . Discard th s parts. Mov th pip plug in th top of th pip
t to th sid conn ction of th pip t . R mov th 3/8" barri r
oil drain plug from th bottom of th b aring housing, and discard
it. Conn ct th nitrog n supply lin to th top of th pip t and
r gulat th pr ssur to 1/4P.S.I.G. maximum. Th 3/8" conn ction
at th bottom of th b aring housing will b l ft un-plugg d to
b com an outl t for th nitrog n and s rv as a l ak d t ction in
th v nt of m chanical s al failur .
PUMP LUBRICATION
PIPING MODIFICATION FOR NITROGEN BARRIER
Wh n pumping a h at transf r oil that do s not oxidiz , a barri r
fluid is not n d d. Modify th barri r piping as d scrib d abov
for th us of nitrog n xc pt plug both of th conn ctions in th
pip t . A coll ction pan could b plac d on th bas plat und r
this drain op ning to coll ct any cond ns d vapors or l akag from
th m chanical s al wh n th fac s w ar.
RA2096
RA3146 AND RA31 6

8
It is important that a pump should n v r b subj ct d to th rmal or
pr ssur shock. Th liquid should th r for b allow d to flow into
th casing slowly. A c ntrifugal pump should n v r b start d until
all th parts ar up to th t mp ratur of th liquid to b pump d.
FILLING
WARNING:
Before filling the pump with liquid, check to see that all possible
leak locations are sealed. See that all of the connections into the
pressure containing cavity are sealed or connected to a related
piping system that also has all possible leak paths sealed. Do not
plug unused cavities, as this could develop dangerous pressure
build-up. Use a wrench on all bolted oints to apply torque to assure
that all gaskets are sealed in a tight oint. Check to see that all
threaded pipe connections are also tight enough to seal the Liquid
pressure that will be applied when the system is started.
WARNING:
Filling directions below refer to venting of “air” to the atmosphere,
but dependent upon the physical properties of the liquid intended
to be pumped, temperature, pressure, and other variables related
to the system and its operational requirements, this may not be
allowed by federal or local regulations, or may not be acceptable
for whatever other reasons. Consult your plant or corporate safety
engineer for instruction on possible required procedures for the
specific liquid, operating conditions and legal requirements.
Wh n th sourc of th liquid to b pump d is b low atmosph ric
pr ssur or locat d b low th pump, th filling may b ac -
complish d in any of s v ral ways, thr of which ar list d b low:
1) An xhaust r may b conn ct d to th discharg piping
b tw n th pump and th discharg isolation valv . With th
discharg isolation valv clos d and th suction valv op n,
th air can b xhaust d from th pump and th suction pip-
ing. Wh n all th air has b n r mov d, clos th suction
valv , r mov th xhaust r, plug th acc ss port wh r th
xhaust r was conn ct d, and th n op n th discharg valv .
R mov th s al v nt plug from th top of th b aring housing,
r f r to th drawings on pag 6. Allow th air to flow from this
port until th pumpag starts to flow. This could tak consid r-
abl tim d p nd nt upon th viscosity of th pumpag .
Fift n to tw nty minut s is not unusual, how v r som liquids
may v nt out in l ss than a minut . If th pump is a “RA2096”
us a funn l and fill th s al cavity, through this conn ction
with cl an pumpag .
2) With a foot valv install d in th suction piping, th pump may
b fill d with pumpag introduc d som wh r abov th
pump in th discharg piping. A foot valv may cr at xt n-
siv loss s and th r for must b allow d for in calculating th
availabl NPSH. Wh n th pump is fill d, plug th port
through which you w r filling. R mov th s al v nt plug from
th top of th b aring housing, r f r to th drawings on pag
6. Allow th air to flow from this port until th pumpag starts
to flow. This could tak consid rabl tim d p nd nt upon th
viscosity of th pumpag . Fift n to tw nty minut s is not
unusual, how v r som liquids may v nt out in l ss than a
minut . If th pump is a “RA2096”, us a funn l and fill th
s al cavity, through this conn ction with cl an pumpag .
3) A vacuum pump (pr f rably a w t vacuum pump) may b
us d for vacuating air from th pump and piping. Th vacu-
um pump should b conn ct d as is th xhaust r cov r d in
No. 1 abov and th proc dur is th sam .
Wh n th sourc of th liquid to b pump d is abov atmosph ric
pr ssur or abov th pumps discharg flang , th pump may b
fill d by v nting through a bl d-off lin to atmosph r . Wh n th
sourc of th liquid is abov th pumps discharg flang th v nt-
ing could b back to th suction sourc , inst ad of to atmosph r .
Wh n all of th air has b n xp ll d through th bl d-off, s al it.
R mov th s al v nt plug from th top of th b aring housing, r f r
to th drawings on pag 6. Allow th air to flow from this conn c-
tion until th pumpag starts to flow. This could tak a consid rabl
amount of tim , d p nd nt upon th viscosity of th pumpag .
Fift n to tw nty minut s is not unusual, how v r som liquids may
v nt out in l ss than a minut . If th pump is a “RA2096”, us a fun-
n l to fill s al cavity, through this conn ction with cl an pumpag .
It is most important to check the direction of rotation of the pump
before allowing the pump to come up to speed. Th pump was
shipp d with th coupling spac r not install d to allow alignm nt
and motor rotation dir ction ch ck. If, how v r, som on install d
this spac r ass mbly, r mov it at this tim . To ch ck rotation dir c-
tion, push th starting button and instantly push th stop button. This
will allow th motor to turn ov r a f w r volutions and th dir ction
of rotation to b obs rv d. A dir ction of rotation arrow is shown
on th front of th pump casing. If rotation is incorr ct, chang th
wiring conn ctions and r ch ck rotation. Operating the pump in
reverse rotation may cause extensive damage.
WARNING:
Lock-out the power to the driver (motor, turbine, engine, etc.) install
the shaft coupling spacer. Be sure that you install all the retaining
devices and bolts and that they are tight. Read and comply with the
coupling manufacturer’s instructions. Personal in ury, death, and/or
equipment damage could occur if the coupling spacer is not prop-
erly installed. Remove all debris and tools from the area near the
shafts and the shaft coupling. Do this to assure that nothing is
caught and thrown by the rotating parts when the pump is started.
Bolt the coupling guard securely to the baseplate, checking to
assure that it is not contacting any parts that will rotate when the
pump is started.
OPERATING
WARNING:
Before starting the unit, see that all personnel are a safe distance
away from all possible hazards, that all sub-systems are connected
and operating, that all debris has been removed, that the shaft cou-
pling guard is securely in place, and that the pump is full of
liquid.
Do not operate this pump at shut-off (no flow) as an explosion may
result. This can occur with any liquid, even “cold water”. Personal
in ury, death, equipment damage, and/or loss of product
(pumpage) is Likely to occur. If your system is operated where it is
possible for all outlets of the discharge from the pump to be closed
while the pump is still operating, a modification of the system needs
to be made to assure a continual flow of pumpage through the
pump. NOTE: Some people have a belief that a bypass line from the
discharge side of the pump to the suction side of the pump will
relieve this problem, this is “NOT TRUE”; DO NOT ATTEMPT THIS.
WARNING:
Do not operate a pump at a low flow condition, unless provision has
been made to prevent dangerous heat build up within the pump
casing. The liquid in the pump will heat up and this may result in
high pressure in the pump in a short time. Such pressure may result
in a rupture of the pressure-containing parts and cause severe haz-
ard to personnel and/or damage to the system.
STARTING THE PUMP

9
A centrifugal pump should never be run without liquid in the
casing. Extensive damage may result, particularly to the bearing or
the mechanical seal. Vent or fill the pump seal chamber through the
seal vent connection to provide lubrication to the mechanical
seal faces.
If th pump is a “RA3146” or a “RA3186”, r mov th b aring
gr as r li f plug from th bottom of th b aring nd cov r (28).
R plac th coupling guard and s cur ly fast n it in plac .
Mak sur that th coupling guard is install d with th xpand d
m tal s ction n ar st th motor, as shown on th S ctional
Ass mbly drawings on pag s 11 and 12.
A c ntrifugal pump should b start d with th suction valv fully
op n and th discharg valv op n d a slight amount. Start
th pump.
As soon as th pump is up to sp d, th discharg valv must b
op n d slowly. A c ntrifugal pump cannot b op rat d with th
discharg valv clos d without h ating up dang rously. During th
first s v ral minut s of op rating watch th pump car fully for ov r-
h ating, vibration, and oth r abnormal conditions. If troubl
d v lops, stop th pump at onc and corr ct th probl m.
Aft r thirty minut s of op ration, stop th pump. If th pump is using
a barri r fluid, ch ck th l v l by r moving th 3/8" pip plug (84)
from th pip t , and r fill, if n c ssary, to a l v l flush with th
bottom of th pip nippl that xt nds horizontally out of th t .
If a small amount of barri r oil has dropp d from th barri r ov r-
flow pip onto th bas plat , do not b conc rn d as this might
occur with th initial h at xpansion of th barri r liquid.
Th barri r ov rflow pip is also us d to d t ct m chanical s al
l akag . If, aft r th pump has run for a f w hours at syst m
t mp ratur , oil starts to spill from this pip , it is an indication of
imp nding m chanical s al failur . Th m chanical s al (95A and
95B) should b r plac d b for th l akag b com s xc ssiv .
If th pump is a “RA3146” or a “RA3186”, r plac th gr as
r li f plug into th bottom of th b aring nd cov r (28) and
tight n to 7 ft. lb. R plac th coupling guard and s cur ly fast n it
in plac .
Mak sur that th coupling guard is install d with th xpand d
m tal s ction n ar st th motor, as shown on th S ctional
Ass mbly drawings on pag s 11 and 12.
R start th pump.
These points must be checked after pump installation and before
starting up the pump.
1) R ad instruction manual thoroughly and und rstand it.
2) R vi w pump ord r h ad sh t for th s rvic rating of th
pump and any sp cial f atur s.
3) Ch ck to s that th s al chamb r has b n v nt d.
4) Ch ck all piping conn ctions making c rtain that th y ar both
tight and in th prop r plac s. All piping includ s th small
piping d scrib d on pag s 7 and 8.
5) Mak sur that th bas plat has b n prop rly install d.
6) Ch ck to s that th motor is of th fan cool d typ . A fan
cool d motor is n c ssary for succ ssful op ration of th
pump.
7) Ch ck th l ctrical conn ctions to th driv r.
8) Br ak th coupling by r moving th coupling spac r and
bump th motor starting button to ch ck motor rotation.
Op rating th pump in r v rs rotation may caus xt nsiv
damag . If driv r rotation is corr ct, r plac th coupling
spac r. If not, conn ct th wiring for prop r rotation and
r ch ck.
9) Ch ck th coupling for prop r alignm nt. R align if n c ssary.
10) Ch ck to s that th barri r fluid has b n install d, if th bar-
ri r fluid is r quir d for your op ration.
11) Ch ck to b sur that th pumpag l ak d t ction conn ction
is op n for prop r op ration.
12) Rotat th pump shaft by hand to b sur that th r is no bind-
ing or rubbing within th pump or driv r. W ar h avy glov s
to prot ct your hands. Corr ct any probl ms b for proc d-
ing.
13) R mov th b aring gr as r li f plug, if th pump is a
RA3146 or a RA3186.
14) R mov all dirt, wast , tools, and construction d bris from th
ar a.
15) Ch ck to s that th coupling guard is fast n d s cur ly in
plac .
PUMP START-UP CHECKLIST

10
To avoid prolong d down tim and facilitat rapid r pair of dam-
ag d pump parts, D an r comm nds that th pump us r maintain
a minimum stock of spar parts. If th pump s rvic is critical, a
spar parts stock is v n mor important to th us r. Such spar s
inv ntory may xt nd from a spar m chanical s al through com-
pl t imp ll r-b ar ing housing ass mbli s pr par d for imm diat
ins rtion in th pump casing. Consult your D an r pr s ntativ who
will assist you in s l cting your spar s stock.
ORDERING SPARE PARTS
Spar part ord rs will b handl d with a minimum d lay if th fol-
lowing information is furnish d by th custom r with th ord r:
1) Giv th pump s rial numb r and siz . Th s may b found on
th pump nam plat . Th s rial numb r is also stamp d on
th suction flang of th pump.
2) Giv th part nam , part numb r, and mat rial of part. Th s
should agr with th standard parts list.
3) Giv th quantity of ach part r quir d.
4) Giv compl t shipping instructions.
SPARE PARTS
TYPE RA PUMP PARTS
Part # Part Name
26 B aring Housing
28* B aring End Cov r
29* Pump Shaft
31* Thrust B aring Lock Nut
(Only on RA3146 & RA3186)
31A* Thrust B aring Lock Wash r
(Only on RA3146 & RA3186)
56 Casing Foot
(Only on RA3146 & RA3186)
75* Snap Ring
(Only on RA3146)
75A* Snap Ring
(Only on RA2096)
76* Gr as S al - Front
76A* Gr as S al - R ar
(Only on RA3146 & RA3186)
77 Casing Gask t
Part # Part Name
77B* B aring End Cov r Gask t
(Only on RA3146 & RA3186)
84* Barri r Fill Plug
92* Barri r Drain Plug
95A* M chanical S al Stationary
95B* M chanical S al Rotary
98 Coupling Guard
120* Fan
121* Fan Collar
(Only on RA3146 & RA3186)
122* Fan Clamp Ring
180* Radial B aring Cartridg
325* S al Gland Gask t
365* S al Collar
370* Collar S t Scr w
375* Anti-Rotation Pin
(Only on RA3186)
Part # Part Name
3 Imp ll r
4* Imp ll r K y
5 Casing
5A Casing Drain Plug
5C Casing Stud Nut
(RA3146 & RA3186)
5D Casing Stud
(RA3146 & RA3186)
Casing Capscr w (RA2096)
6A Casing Ring (only som siz s)
9 B aring Housing Foot
12* Imp ll r Bolt
(RA3146 & RA3186)
Imp ll r Nut (RA2096)
12A* Imp ll r Wash r
13* M chanical S al Gland
25A* Thrust B aring
(Pair - RA3146 & RA3186)
(Doubl - RA2096)
* D not s parts int rchang ability in all pumps of th sam s ri s (i. . RA2096, RA3146, or RA3186).
76A
2877B261807736A556
5C
4
75 25A
29
31A
31
9
122
120
121
12
12A
36595B
95A
325
13 325
76

11
OPTIONAL PROTECTION SYSTEMS
SECTIONAL ASSEMBLY DRAWINGS
RA3146
RA2096

12
RA31 6

13
WARNING:
Work must be performed only by thoroughly trained and quali-
fied personnel to assure quality repair and to reduce the possi-
bilities of in ury to personnel and/or damage to equipment. If
you do not have personnel who are capable of safe quality
repair of this equipment, we advise you to return the equipment
to DEAN PUMP to be repaired.
When it is necessary to open the pump and/or the pumping
system the fluid will be exposed to the atmosphere and person-
nel in the area. For the safety of all involved, the risk of expo-
sure of personnel to the hazards of the pumpage can be reduced
by flushing the entire system with a compatible, nontoxic, non-
hazardous, stable fluid before opening the pump or the system.
In all cases, where the system is flushed or not, use the utmost
care around the pumpage and the pumping system.
Always wear the appropriate protective apparel when working
on or around the pumping equipment. Safety glasses with side
shields, heavy work gloves (use insulated work gloves when
handling hot items), steel-toed shoes, hard hat, and any other
protective gear as needed for protection. One example of other
gear would be breathing apparatus when working near
toxic materials.
Use only top quality tools.
a) Stop th pump. Turn off th pow r supply ( l ctricity) to th
pump driv r (motor) and lock th switching d vic so that it
can not b r start d. Tag th switching d vic so that no
on will att mpt to r start th unit.
b) Clos th suction and discharg valv s compl t ly to isolat
th pump from th syst m. Lock th valv s in th clos d posi-
tion and tag th m so that no on will att mpt to op n th m.
c) Turn off, lock out, and tag all sub-syst ms and auxiliary
quipm nt and auxiliary supply lin s to isolat th pumping
unit from any and all pow r, n rgy, and/or fluids.
WARNING:
Do not attempt to perform any work on the unit until you are
confident that the pump and its contents have been stabilized at
ambient temperature, and atmospheric pressure.
Put on protective wear to protect human tissue from attack by the
fluids contained in the pump and any sub-systems, and from any
vapors or fumes that could possibly be released from these flu-
ids. This could mean breathing apparatus, face shields, heavy
long sleeve rubber gloves, rubber apron, hood, and possibly
more, dependent, of course, on the properties of the fluids
involved and the installed drain and vent piping arrangement.
Personal in ury and/or death can occur if adequate precautions
are not taken with regard to the fluid, the installation and the
possibilities of the release of fluid, vapors, and/or fumes.
d) R mov th coupling guard. R mov th coupling spac r.
B car ful to not b nd th blad s of th fan (120). If th
pump is a RA2096, th r moval of th spac r will also
loos n th fan (120) from th fac of th coupling hub.
) Drain all th fluids from all th auxiliary sub-syst ms
(lubrication, cooling, h ating, s al barri r, tc.) that ar
conn ct d to th pump. Drain ach fluid into a s parat
contain r. Us caution r quir d for ach fluid aft r r ading
th MSDS (Mat rial Saf ty Data Sh t) for ach.
f) Flush ach sub-syst m with a compatibl , non-toxic, non-
hazardous, stabl liquid. Drain into individual contain rs
for ach fluid. Disconn ct and r mov all auxiliary piping.
g) Car fully bl d off any pr ssur r maining in th pump.
Pr ssur r maining in th pump will b d p nd nt upon th
pr ssur in th syst m wh n th pump was stopp d; th quali-
ty, typ , and condition of th isolation valv s; th th rmal
xpansion valu s of th fluid and th pump mat rial; and th
chang in th vapor pr ssur of th fluid b tw n th t mp r-
atur at th tim th isolation valv s w r clos d and th ambi-
nt t mp ratur . Bl ding must b through a valv d drain Lin
pip d to a clos d contain r mount d low r than th pump. Th
contain r must b arrang d with a r li f passag to som point
wh r pr ssur and fum s will not b harmful to p rsonn l. Th
contain r must also hav a L v l d vic so that d t rmination
can b mad that suffici nt fluid has b n drain d to mpty th
pump cavity and th volum of fluid that was contain d in th
run of suction and discharg pip b tw n th isolation valv s
and th pump. Aft r th initial rush of fluid from th pump
r li v s th pr ssur , th drain valv can b op n d furth r to
sp d th draining op ration. Wh n fluid quits running into th
drain tank, gaug th volum to s if it is suffici nt to hav
fully drain d th cont nts of th pump and th suction and dis-
charg pip s b tw n th isolation valv s.
If th syst m was construct d without any drain conn ctions, it
will b n c ssary to consult th d sign rs of th syst m for saf
draining proc dur s.
h) Now drain any small piping, that contains th fluid pump d,
from all low points into th sam contain r us d to drain th
pump. Do not drain any oth r fluids (diff r nt th n th
pumpag ) into this contain r as th y may not b compatibl .
P rsonal injury, d ath, and/or quipm nt damag could
occur.
WARNING:
Even though it might appear that the cavity being drained has com-
pletely drained, be extremely careful about opening the system
and/or opening the pump. If something solid in the pumpage
moves to the vicinity of the drain connection, it could seal-off the
drain and maintain pressure in the cavity thought to have been
drained. It is also possible that the isolation valves are not sealing
and therefore allowing liquid to flow from the system into the pump.
Personal in ury, death and/or equipment damage may occur if
great caution is not exercised.
i) R mov th bolt(s) that r tain th b aring housing foot (9) to
th bas plat . B caus of th abov possibility, wh n you
loos n th gask t d joint at th back of th casing (5), loos n
th casing capscr ws (5D) of th RA2096 or th casing nuts of
th RA3146 or th RA3186, only on full turn. Th n us jack-
scr ws (two, 180ºapart) through th flang of th b aring
housing (26) to “br ak” th gask t s al. Th b aring housing
flang of th RA2096 and RA3146 pumps hav tapp d hol s
for 1/2"-13 UNC scr ws, th RA3186 has 5/8"-11 UNC. If fluid
and/or pr ssur r mains in th pump, it will spray out now.
Us xtr m caution, w aring prot ctiv g ar, to avoid injury.
Do not proc d with disass mbly until l akag c as s
compl t ly. If l akag do s not c as , th isolation valv s may
not b s aling. Not that if th pump was purchas d without a
drain, th pump will contain fluid which will flow out at th tim
th nuts or capscr ws ar loos n d and th gask t s al
is “brok n”.
WARNING:
When you open the pump, the fluid will be exposed to the atmos-
phere and personnel in the area. For the safety of all involved, the
risk of exposure can be reduced by flushing the cavity that was ust
drained with a compatible, non-toxic, non-hazardous, stable liquid,
before disassembling the pump.
DISASSEMBLY AND ASSEMBLY PROCEDURES

14
j) R mov th casing capscr ws (5D) of th RA2096 or th cas-
ing nuts (5C) of th RA3146 or th RA3186, and using
m chanical lifting apparatus to support th w ight, pull th
rotating unit from th casing (5). Un-scr w th two jack-scr ws
until th y ar not protruding through th “casing sid ” of th
b aring housing (26) flang .
k) Flush th w tt d parts, now xpos d, with a compatibl , non-
toxic, non-hazardous, stabl liquid.
l) R mov th gask t from th fac of th casing (5) or th b ar-
ing housing (26) d p nd nt on which on th gask t may
hav adh r d to. Th typ of gask t and mat rial of construc-
tion will vary with s rvic r quir m nts. Attack by prying and
th n, if n c ssary, lay ring off th old gask t with a sharp
scrap r, att mpting to r mov it in th larg st possibl pi c s.
W ar h avy L ath r, long sl v work glov s wh n using th
scrap r. W t th gask t b for and during th scraping op r-
ation to r duc th possibility of fib rs b coming airborn .
W ar a r spirator during this op ration and until all d bris has
b n dispos d of in a plastic bag. R mov all of th gask t
mat rial down to cl an m tal surfac s on both parts that con-
tact d th gask t. Us car to not damag th m tal fac s.
Plac all of th gask t r sidu in a plastic bag, s al th bag
and dispos .
m) Insp ct th insid of th casing (5) for any signs of w ar, cor-
rosion or any oth r damag . If th casing n ds to b
r mov d, r mov th bolts from th suction and discharg
flang s. R mov th bolts that hold th casing f t to th bas -
plat . Th casing can now b r mov d. R mov th suction
and discharg flang gask ts using th proc dur as in para-
graph “ l ” abov .
n) Th rotating ass mbly of th pump can now b mov d to a
mor conv ni nt location for furth r disass mbly. Us m chan-
ical lifting quipm nt to mov ass mbli s and compon nts.
DISASSEMBLY PROCEDURE
To furth r dismantl th pump, p rform th following st ps in th
s qu nc shown:
WARNING:
Use only high quality tools.
Obtain MSDS data sheets for all liquids (from the manufacturers of
those liquids) being used with the pump, and heed all cautions.
Flush parts as disassembled to remove hazardous residue from
the pumpage and/or sub-system fluids.
Wear protective equipment as advised at the beginning of this
section.
Use mechanical lifting equipment to lift assemblies and compo-
nents.
Do not apply heat to parts to assist in disassembly. Explosion
could occur causing personal in ury, death, and/or damage to
equipment.
Do not attempt to drill, saw or otherwise cut parts to remove
them. Explosion and/or fuming could occur causing personal
in ury, death, and/or equipment damage.
Do not hammer on any parts. Personal in ury and/or damage to
equipment may occur.
a) R mov th imp ll r nuts (12) of th RA2096 or th imp ll r
bolt (12) of th RA3146 or th RA3186 (all hav right hand
thr ads) whil holding th pump shaft (29) against rotation
with a wr nch on th flats of th coupling hub. Wh n loos n-
ing th imp ll r nuts (12) of th RA2096, b sur to loos n th
out r nut and r mov it, b for loos ning th nut that is clos st
to th imp ll r (3). R mov th imp ll r r taining wash r
(12A). Slid th imp ll r (3) off th shaft (29). R mov th
imp ll r k y (4) from th shaft (29).
b) R mov th coupling hub from th pump shaft (29) by loos n-
ing th s t scr ws and using a g ar pull r to pull th hub from
th shaft. Do not hamm r on th coupling hub or th shaft.
R mov th coupling k y. B car ful to not b nd th blad s of
th fan (120).
c) R mov th fan (120) from th pump shaft (29). If th pump is
a RA2096, slid th fan (120) and th fan clamp ring (122)
off of th nd of th pump shaft (29). If th pump is a RA3146
or a RA3186, loos n th radially position d s curing scr w in
th sid of th fan collar (121) and slid th fan (120), fan
collar (121), fan clamp ring (122) ass mbly off th nd of th
pump shaft (29). If this ass mbly r sists r moval, loos n th two
axially position d scr ws that hold th s parts tog th r.
WARNING: Wear gloves when removing the fan (120) to
protect your hands as the fan is made of thin metal and could
cut you.
d) R mov th b aring nd cov r (28) from th b aring housing.
R mov b aring nd cov r gask t (77B) if pump is a RA3146
or RA3186.
) Pr ss th gr as s al (76A) from th b aring nd cov r (28), if
th pump is an RA3146 or a RA3186.
f) Pull th pump shaft (29) from th b aring housing (26), using
car to k p th shaft in lin with th b aring housing so
as not to damag any parts. W ar h avy work glov s.
Compr ssion of th m chanical s al spring will b d t ct d
during this op ration.
g) R mov th s t scr ws (370) from th m chanical s al collar
(365) and th n slid it from th shaft (29). Slid th m chani-
cal s al rotary (95B) from th shaft (29). It may tak a consid-
rabl amount of forc to r mov th rotary (95B) as th las-
tom ric shaft s aling l m nt may grip th shaft quit tightly.
h) R mov th m chanical s al gland (13) from th shaft. R mov
th s al gland gask ts (325) from th s al gland (13). R mov
th m chanical s al stationary (95A) from th m chanical s al
gland (13). If th pump is a RA3186, r mov th “m chanical
s al stationary O ring” from th insid of th m chanical s al
gland (13).
i) R mov th gr as s al (76) from th s al gland (13). This can
b r mov d by ins rting a scr w driv r or a small driv pin
punch into th op n sid of th s al and driving it out of th
s al gland.
j) If th pump is a RA2096, r mov th snap ring (75A) from th
pump shaft (29). If th pump is a RA3146 or a RA3186, b nd
th tab of th b aring lock wash r (31A) out of th slot in th
b aring lock nut (31). R mov th b aring lock nut and th
b aring lock wash r from th pump shaft (29). Pr ss th thrust
b aring(s) (25A) from th pump shaft. Ex rcis car to push
only on th inn r rac of th b arings. Do not pr ss on th shaft
snap ring (75) of th RA3146. Do not hamm r on th b ar-
ing(s) or th shaft in any mann r as this may r sult in damag
to th shaft. R mov th snap ring (75) from th pump shaft of
th RA3146, only if it is damag d.
k) Pr ss or driv th b aring cartridg (180) from th b aring
housing (26).
1) RA2096 proc dur :
Us a 11/4" diam t r bar, 12" long, cut squar on th
nds. Ins rt th bar into th coupling nd of th b aring
housing (26) until it stops against th b aring cartridg

(180). Us a hydraulic pr ss to pr ss th b aring
cartridg (180) from th b aring housing (26).
2) RA3146 proc dur :
Th b aring cartridg (180) has two 3/8"-16 UNC tapp d
hol s that ar acc ssibl from th imp ll r nd of th b ar-
ing housing. S cur ly bolt a 1/2" Class 300 flang to th
cartridg , using wash rs on th bolts. Us a 14” long
pi c of 1” pip (15/16" outsid diam t r), cut squar on
th nds, to r ach down through th b aring housing (26)
to pr ss th b aring cartridg out.
3) RA3186 proc dur :
Th b aring cartridg (180) has two 1/2"-13 UNC tapp d
hol s that ar acc ssibl from th imp ll r nd of th b ar-
ing housing. S cur ly bolt a 1” Class 300 flang to th
cartridg , using wash rs on th bolts. Us a 22” long
pi c of 11/4" pip (15/8"outsid diam t r), cut squar on
th nds, to r ach down through th b aring housing (26)
to pr ss th b aring cartridg out.
l) R mov th s al v nt plug from th top of th b aring housing
(26) and discard it. Th RA2096 and RA3146 pumps hav a
3/8" plug and th RA3186 pumps hav a 1/2" plug. R f r to
th drawings on pag 6.
m) If th r is any r ason to r mov th b aring housing foot (9),
it is s cur d by two bolts and locat d by a dow l pin.
REASSEMBLY PROCEDURE
WARNING:
Use only high quality tools.
Wear protective equipment as advised at the beginning of this
section.
Use mechanical lifting equipment to lift assemblies and
components.
Do not hammer on any parts. Personal in ury and/or damage to
equipment may occur.
Do not attempt to manufacture parts or modify Dean Pump parts in
any manner. Death, personal in ury, and/or damage to
equipment may occur.
Replace all gaskets, seals, bearings, and lubricants. Replace all
parts that have worn, corroded, eroded, or otherwise deteriorated.
Use only Dean Pump Division of Met-Pro Corporation parts.
To r ass mbl th pump, p rform th following st ps:
a) Cl an all parts, thoroughly insp ct th m, and r plac wh r
n c ssary. If th pump shaft (29) has two lip contact w ar pat-
t rns (lip s al contact ar a) und r th lip s al (76), r plac th
shaft. If th shaft is scor d und r th b aring (180), r plac th
shaft.
b) Install a n w s al v nt plug into th top of th b aring housing
(26), but do not apply any pip s alant, and do not tight n th
plug. Th plug will n d to b r mov d again lat r, for v nt-
ing, wh n th pump is install d into th syst m. R f r to th
drawings on pag 6.
c) Pr ss a n w b aring cartridg (180) into th b aring housing
(26) until it s ats firmly against th should r in th b aring
housing. On th RA2096, install with th xpos d carbon
b aring fac facing outward (s s ctional ass mbly draw-
ing). On th RA3146 and RA3186, install with th two tapp d
hol s facing outward and th 1/8" diam t r “through hol ”
position d at th top of th b aring housing (s s ctional
ass mbly drawing). Us a pr ss and a pad ov r th nd of th
b aring cartridg (180). Do not hamm r on th b aring
cartridg ; th b aring could b brok n. If a pr ss is not avail-
abl , th b aring cartridg could b pull d into th b aring
housing by using a pi c of thr ad d rod through th b aring
housing with a larg wash r and a nut on ach nd.
d) If th pump is a RA3146, install th snap ring (75) onto
th pump shaft (29) insuring that it is s cur ly into th snap
ring groov .
) If you ar r installing a pr viously us d pump shaft (29),
insp ct th shaft for w ar und r th gr as s al(s) as dir ct d
in paragraphs h) and r) b low. Pr ss th thrust b aring(s) (25A)
onto th pump shaft (29).
1) RA2096 proc dur :
Pr ss th thrust b aring (25A) onto th pump shaft
(29) and firmly against th shaft should r. Do not hamm r
on th b aring or shaft in any mann r as this will
caus damag .
2) RA3146 proc dur :
Pr ss th thrust b arings (25A) onto th pump shaft (29)
and firmly against th snap ring (75). Th thrust b arings
ar angular-contact typ , ground sp cifically for dupl x
mounting and must b ass mbl d back-to-back (s th
illustration b low). Not th dir ction that th rac s of th
b aring ar mount d. Do not hamm r on th b arings or
shaft in any mann r as this will caus damag .
3) RA3186 proc dur :
Pr ss th thrust b arings (25A) onto th pump shaft (29)
and firmly against th shaft should r. Th thrust b arings
ar angular-contact typ , ground sp cifically for dupl x
mounting and must b ass mbl d back-to-back (s th
illustration b low). Not th dir ction that th rac s of th
b aring ar mount d. Do not hamm r on th b arings or
shaft in any mann r as this will caus damag .
f) S cur th thrust b aring(s) (25A) to th pump shaft (29).
1) RA2096 proc dur :
Install th b aring r taining snap ring (75A) with tap r d
sid away from th b aring (s illustration on pag 16).
2) RA3146 and RA3186 proc dur :
Install a n w b aring lock nut wash r (31A). Install th
b aring lock nut (31). B nd a tab of th b aring lock nut
wash r (31A) into an align d slot of th b aring lock
nut (31).
15
THRUST BEARING POSITION - RA3146 AND RA31 6

16
SNAP RING ORIENTATION - RA2096
g) Thrust b aring lubrication.
1) RA2096 proc dur :
Th thrust b aring(25A) of th RA2096 is alr ady pack d
with gr as and is s al d for lif .
2) RA3146 and RA3186 proc dur :
Pack th thrust b arings (25A) with gr as .
Th RA3146 r quir s 2.9 cubic inch s of gr as .
Th RA3186 r quir s 6.8 cubic inch s of gr as .
Att mpt to forc all of th gr as into th b arings. Th
gr as must b a lithium 12-hydroxyst arat soap thick-
n d gr as that has rust inhibitors and xtr m pr ssur
additiv s and must b a NLG1, Grad 2, similar to
Sh ll Oil Company’s “Alvania” Gr as #EP2 or
Union Oil of California’s “UNOBA #EP” Gr as
Grad 2
Gr as is also availabl from D an Pump in individual
contain rs, Ord r RA3000 Gr as #2 for b aring
lubrication. On contain r is r quir d for ach
RA3146 pump. Two contain rs ar r quir d for ach
RA3186 pump.
h) Pr ss a n w gr as s al (76) into th m chanical s al gland
(13). R mov and discard th gard r spring from a n w
gr as s al (76). Install with th lip pointing towards th
imp ll r nd of th pump as shown in th pump s ctional
ass mbly drawing.
Insp ct th shaft (29) wh n installing a us d shaft (if th shaft
has b n us d b for ): d t rmin if th r is on or two gr as
s al lip contact w ar patt rns (gr as s al lip contact ar a). If
two contact ar as ar pr s nt, th pump shaft n ds r placing.
If on contact ar a is pr s nt, stop pr ssing on th s al wh n
th outsid fac of th s al is 1/16" abov th fac of th
m chanical s al gland (13). If th pump shaft (29) is n w,
pr ss th s al into th m chanical s al gland (13) until it is
flush with th fac of th m chanical s al gland.
i) Install n w s al gland gask ts (325) into th m chanical s al
gland (13). Lubricat th gask ts b for installing, with an oil
that is compatibl with th liquid to b pump d, or with th
pump d liquid its lf.
j) Install a n w m chanical s al stationary s at (95A) into th
m chanical s al gland (13). If th pump is a RA2096 or a
RA3146, b sur that th r is an “O” ring install d in th
groov in th outsid diam t r of th m chanical s al station-
ary s at (95A). If th pump is a RA3186, install th stationary
s at “O” ring (th “O” ring is furnish d with th m chanical
s al stationary s at) into th groov in th bor of th m chan-
ical s al gland (13). Install th m chanical s al stationary s at
(95A) with th polish d fac away from th lip s al (76).
Lubricat th “O” ring b for installing th m chanical s al sta-
tionary s at (95A) into th s al gland (13). An oil compatibl
with th liquid to b pump d, or th pump d liquid its lf,
should b us d as a lubricant for th “O” ring.
k) Lubricat th ar a of th shaft ov r which th lip s al will slid ,
th n car fully slid th m chanical s al gland (13) ass mbly
ov r th shaft, so as not to damag th lip s al (76) nor th
m chanical s al stationary s at (95A). Push th m chanical
s al gland snugly against th thrust b aring (25A).
l) Lubricat th ar a of th shaft ov r which th m chanical s al
rotary (95B) will slid . Car fully slid th m chanical s al
rotary (95B) ov r th shaft (29) until it contacts th m chanical
s al stationary (95A). Do not damage the seal on any of the
shaft shoulders.
m) Slid th m chanical s al collar (365) car fully ov r th shaft
(29) until it is firmly against th shaft should r and compr ssing
th spring of th m chanical s al rotary (95B). Tight n th s t
scr ws whil holding th s al collar (365) firmly against th
shaft should r.
n) Lubricat th bor in th back of th b aring housing (26) so
that th s al gland gask ts (325) will slid in without damag .
Car fully slid th shaft ass mbly (29) into th b aring housing
(26) from th b aring nd cov r nd. Do not strik th carbon
b aring (180) with th nd of th pump shaft (29). Guid th
m chanical s al gland (13) and th thrust b arings (25A) into
th b aring housing (26) as th shaft ass mbly (29) is install d.
p) If th pump is a RA2096 go to st p w.
q) Install a n w nd cov r gask t (77B) ov r th thrust b aring
(25A) and against th b aring housing (26).
r) R mov th gart r spring from a n w lip s al (76A) and dis-
card it. Pr ss th lip s al into th b aring nd cov r (28), from
th b aring sid , and up against th should r at th opposit
sid , wh n a n w shaft is b ing us d. If th pump shaft is not
n w, stop pr ssing on th lip s al 1/16" b for it r ach s th
should r of th nd cov r, placing th s aling lip at a n w loca-
tion on th pump shaft (29).
s) Lubricat th pump shaft (29) at th diam t r wh r th lip s al
(76A) contacts. Apply any r maining gr as from packing th
thrust b arings (25A) around th xpos d fac of th b arings
(25A). Plac th nd cov r (28) car fully ov r th pump shaft
(29) and th thrust b aring (25A), with th plugg d hol
towards th bas plat . Bolt th nd cov r (28) s cur ly to th
b aring housing (26). Torqu th nd cov r bolts to 20 lb.ft. on
th RA3146 and to 35 lb. ft. on th RA3186.
RA3146 AND RA31 6 FAN LOCATIONS

t) Mark (p ncil or light scrib ) a lin on th pump shaft (29),
31/4" for th RA3146 and 51/16" for th RA3186, from th
coupling nd. Plac th fan collar (121), groov d fac first,
onto th pump shaft and up to th “mark”. R f r to th
drawing on bottom of pag 16. Tight n th fan collar locking
scr w tightly.
Plac th fan (120), with th concav sid of th blad s
towards th pump, ov r th nd of th pump shaft (29) and up
against th fan collar (121). Th concav sid of th fan blad
was indicat d with a lab l “PUMP SIDE” at th tim it was
shipp d from th factory. Rotat th fan until th hol s in th
fan align with th tapp d hol s in th fan collar.
Plac th fan clamp ring (122) ov r th nd of th pump shaft
(29) and up against th fan (120). Align th hol s in th fan
clamp ring with th hol s in th fan and th hol s in th fan
collar (121).
Ins rt th two sock t h ad bolts, with lock wash rs, through th
fan clamp ring (122) and th fan (120), into th tapp d hol s
of th fan collar (121) and tight n th m s cur ly.
u) Ins rt th coupling bolts through th lockwash rs and th pump
coupling hub. Plac th hub onto th pump shaft (29), posi-
tioning th out r fac of th hub flush with th nd of th pump
shaft. Install th coupling k y and tight n th hub s t scr w(s).
v) Go to st p z).
w) Plac th nd cov r (28) car fully ov r th pump shaft (29)
and bolt it s cur ly into position against th b aring housing
(26). Torqu th nd cov r bolts to 11 lb.ft.
x) Ins rt th four coupling bolts through th lockwash rs and th
fan clamp ring (122) from th sid opposit of th rais d fac .
Th clamp ring is mad to fit thr diff r nt siz s of couplings,
so you must ins rt th bolts into th hol s that match th cou-
pling hub that you ar using. Slid th clamp ring onto th
pump shaft (29) with th rais d fac facing th motor.
Plac th fan (120), with th concav sid of th blad s towards
th pump, ov r th nd of th pump shaft, onto th coupling bolts
and up against th clamp ring. R f r to th drawing b low. Th
concav sid of th fan blad was indicat d with a lab l “PUMP
SIDE” at th tim it was shipp d from th factory.
y) Plac th coupling hub ov r th nd of th pump shaft (29) and
onto th coupling bolts, until th fac of th hub is flush with th
nd of th pump shaft. Install th coupling k y, with th nd of
th k y flush with th nd of th pump shaft and th fac of th
hub. Tight n th hub s t scr w(s).
z) Plac th imp ll r k y (4) into th k yway of th pump shaft (29).
Car fully slid th imp ll r (3) onto th pump shaft (29).
1) If th pump is a RA2096,
slid th imp ll r wash r (12A) ov r th pump shaft (29)
and against th imp ll r (3). Thr ad on of th imp ll r nuts
(12) onto th pump shaft (29) and tight n it to a torqu of
40 Lb.Ft. Thr ad th s cond imp ll r nut (12) onto th nd
of th pump shaft (29) and tight n it to a torqu of 40 Lb.Ft.
Hold th pump shaft (29), against th tight ning torqu , by
placing a wr nch on th flats of th coupling hub. B car -
ful to not b nd th blad s of th fan (120).
2) If th pump is a RA3146 or a RA3186,
Plac th imp ll r wash r (12A) on to th imp ll r bolt (12)
and thr ad th imp ll r bolt (12) into th nd of th pump
shaft (29). Tight n th imp ll r bolt to a torqu of 60 lb. ft.
for th RA3146 and 100 lb. ft. for th RA3186. Hold th
pump shaft, against th tight ning torqu , by placing a
wr nch on th flats of th coupling hub. B car ful to not
b nd th blad s of th fan (120).
aa) If th pump has a casing ring (6A), pr ss it into th casing (5).
ab) Car fully ins rt th b aring housing (26) ass mbly into th
casing with a n w casing gask t (77). Assur that th b aring
housing (26) ass mbly is fully into th casing (5) and that th
b aring housing foot (9) is in full contact with th bas plat .
Tight n th casing capscr ws (5D) or th casing stud nuts (5C)
slowly and v nly so that th casing gask t will compr ss v n-
ly. Torqu th casing capscr ws (5D) of th RA2096 pumps to
50 lb. ft. Torqu th casing stud nuts (5C) of th RA3146 and
RA3186 pumps to 105 lb. ft. if th studs ar 3/4” and to 165 lb.
ft. if th studs ar 7/8”.
ac) Rotat th pump shaft (29) by hand to ch ck for int rf r nc .
W ar h avy glov s wh n rotating th shaft, to prot ct your
hands. Corr ct if any rubbing is d t ct d.
ad) If th casing (5) was r mov d from th bas plat , r attach it with
bolts through th casing f t to th bas plat . R attach th suc-
tion and discharg flang s, installing n w gask ts.
a ) Bolt th b aring housing foot to th bas plat . Rotat th pump
shaft (29) again by hand to ch ck for rubbing. W ar h avy
glov s wh n rotating th shaft, to prot ct your hands. Corr ct if
any rubbing is d t ct d.
af) R align th pump and driv r p r instructions und r “PUMP AND
DRIVER ALIGNMENT”.
ag) Follow th instructions und r “PUMP LUBRICATION”, “START-
ING THE PUMP”, and “PUMP START UP CHECKLIST”.
RA2096
17

D an Pump S rial Numb r
Plant Prop rty Numb r
S rvic
Location
Capacity ; T.D.H. ; Imp. Dia. ; T mp. ; RPM
Spar Parts in Plant Stock Room
Int rchang abl with D an S rial Numb rs
CUSTOMER’SPLANT MAINTENANCE RECORD
18