PEERLESS TU Series Setup guide

Read this entire book
before attempting to install, operate or repair this
pump. Properly installed, your Peerless pump will give
you satisfactory, dependable service. We urge that
you carefully read these step-by-step instructions to
simplify any problems of installation, operation or
repair.
Failure to read and comply with installation and
operating instructions will void the responsibility
New Equipment manufactured by Seller or Service supplied by Seller
is warranted to be free from defects in material and workmanship
under normal use and service for a period of one year from date of
shipment. In the case of spare or replacement parts manufactured
by Seller, the warranty period shall be for a period of twelve months
from shipment. Seller's obligation under this warranty is limited to
repairing or replacing, at its option, any part found to its satisfaction
to be so defective, provided that such part is, upon request, returned
to Seller's factory from which it was shipped, transportation prepaid.
Parts replaced under warranty shall be warranted only from date of
repair. This warranty does not cover parts damaged by
decomposition from chemical action or wear caused by abrasive
materials, nor does it cover damage resulting from misuse, accident,
neglect or from improper operation, maintenance, installation,
modification or adjustment. This warranty does not cover parts
repaired outside Seller's factory without prior written approval. Seller
makes no warranty as to starting equipment, electrical apparatus or
other material not of its manufacture. If Purchaser or others repair,
replace, or adjust Equipment or parts without Seller's prior written
approval, Seller is relieved of any further obligation to Purchaser
under this section with respect to such Equipment or parts, unless
such repair, replacement, or adjustment was made after Seller failed
to satisfy within a reasonable time Seller's obligations under this
Paragraph.
WARNING
Shut down pump. Disconnect power to the pump driver
before starting any repairs. Refer to Bulletin No.
2880549 for the procedure to follow.
1-1. Disengage the coupling halves. If pin and rubber
bushing type, remove the ins; if other type, refer to the
coupling manufacturer’s instructions. Disconnect
plumbing from water-cooled bearings.
1-2. PUMP. (See figure 1 or 2). Disassemble pump (to
the extent required) as follows:
NOTE
Disassembly and reassembly instructions for both type
pumps are included in this bulletin. Disregard the
instructions which do not apply to the specific pump
being repaired.
a. Remove the nuts from the gland bolts (17B) and
remove glands (17) from the shaft (6). The gland
halves are separable.
of the manufacturer and may also result in bodily injury
as well as property damage.
REPAIR INSTRUCTIONS
TYPE TU, TUF-2 STAGE AND TUT, TUTF-3 STAGE
CENTRIFUGAL PUMPS
This book is intended to be a permanent part of your
installation and should be preserved in a convenient
location for ready reference. If these instructions
should become soiled, obtain a new copy from
Peerless Pump Company. Include pump model and/or
serial number with your request.
WARRANTY
Seller's liability for breach of these warranties (or for breach of
any other warranties found by a court of competent jurisdiction
to have been given by Seller) shall be limited to:
(a) accepting return of such Equipment FCA Plant of
Manufacture (CPT under Incoterms 2000), and
(b) refunding any amount paid thereon by Purchaser
(less depreciation at the rate of 15% per year if
Purchaser has used Equipment for more than thirty
[30] days), and canceling any balance still owing on
the Equipment.
(c) in the case of Service, at Seller's option, redoing
the Service, or refunding the purchase order amount
of the Service or portion thereof upon which such
liability is based.
These warranties are expressly in lieu of any other warranties,
express or implied, and Seller specifically disclaims any implied
warranty of merchantability or fitness for a particular purpose,
and in lieu of any other obligation or liability on the part of the
Seller whether a claim is based upon negligence, breach of
warranty, or any other theory or cause of action. In no event
shall Seller be liable for any consequential, incidental, indirect,
special or punitive damages of any kind.
SECTION I - DISASSEMBLY
WARNING
Do not operate this pump at any pressure, flow rate, or
liquid temperature other than those for which the pump
was originally purchased. Do not pump any other liquid
than the one for which the pump was originally
purchased without the consent of Peerless Pump or its
authorized representatives. Disregard of this warning
can result in pump failure and serious personal injury
or death.
b. Remove all nuts or cap screws from the upper
casing (1B) and from the bearing caps (41). Match
mark and remove both bearing caps.
c. Screw down the jack screws alternately and evenly
to separate the upper and lower casings. Turn the jack
screws back after the case halves have separated to
avoid interference at reassembly.
d. Attach a hoist to the eye bolt(s) (customer-
furnished), or to a sling through external cross-over, to
lift upper casing (1B). Do not use eye bolts to lift
pump. 2883820
Rev.10-04

e. Place slings around the shaft near the bearing
housings and lift rotating element from lower casing
(1A). Tap lightly on the underside of the bearing
housings (31 and 33) to separate the housing from the
brackets.
f. Place rotating element in a convenient work place.
1-3. ROTATING ELEMENT. Remove the plugs and
drain oil from the oil lubricated bearings. Remove
constant level oilers (125) and pipe nipples.) (Not
required for grease lubricated bearings.) Proceed as
follows.
a. Loosen set screw and remove the coupling half. Tap
from the back of the hub or use a puller. Remove
coupling key (46).
b. Loosen set screws on the water deflector (40A).
c. Remove cap screws or stud nuts from bearing covers
(35) and separate covers from housing (31) and (33).
(Use care not to damage the oil seal (107)) used with oil
lubricated bearings.)
d. Lightly tap around housings (31,33) to remove. Do not
cock or force housing off, as to do so may damage the
bearings (16,18), or the oil seal (107).
e. Loosen and remove bearing locknut (22) and
lockwasher (69A).
f. Remove bearings as described in Figure No. 3.
g. Carefully remove shaft collars (68) (if present) and
bearing covers (35). Use care not to damage cover
gasket (73B) or oil seal (107).
NOTE
Clearance between collar and shaft is approximately
0.002 inch. Use care when removing not to cock or
force, as this will score the shaft.
h. Withdraw casing rings (7, 7A). On most pumps these
may be withdrawn before removing the coupling half.
i. Remove water deflector (40), packing (13), lantern
rings (29) and stuffing box bushings (63). Make note of
the number of packing rings on each side of the lantern
rings.
j. Loosen the shaft sleeve (14) set screws near impeller
hub. With a spanner wrench, turn the inboard sleeve in
the same direction as shaft rotation to remove (shaft has
right-and left-hand threads on opposite sides of
impeller). NOTE
A seal between the shaft and sleeves is made with a
2-1. INSPECTION. Visually inspect parts for damage affecting
serviceability or sealing. Emphasize inspection of mating parts
having relative motion – wear rings, for example. Perform
detail inspection as follows:
a. Check O-rings and bearing cover gaskets for cracks, nicks
or tears; packing rings for excessive compression, fraying or
shredding, embedded particles (dirt or metal). Replace if
defective in any way.
b. Mount the shaft between lathe centers. Check the
eccentricity throughout entire length with a dial indicator to be
not more than 0.003 inch total indicator reading. Check that the
threads are clean and sharp. Surfaces on which bearings
mount must be smooth, have a finish not
less than 32 micro-inches, and have shoulders square
and free from nicks.
c. Measure the OD of the integral impeller wear surfaces
rubber O-ring in a groove in the sleeve. Use care not to
damage the O-ring.
k. Support the back side of first stage impeller (2) with a
split ring on the base of a suitable arbor press. Shift the
inter-stage bushing (113) toward second (third) stage
impeller (2) so that support ring bears on impeller close
to shaft (6). Carefully press shaft through impeller (2).
l. Take off inter-stage bushing (113) and remove impeller
key (32).
m. Similarly support second stage impeller (2) with split
ring, press shaft through impeller and remove key (32).
Remove casing ring (7).
n. Support third stage impeller (2) in same manner,
press shaft through inter-stage sleeve (58A) and
impeller, then remove key (32).
o. Press shaft through inter-stage sleeve (58).
1-4. CLEANING. Clean all metal parts (except bearings)
with a solvent. Use a bristle brush (NOT metal or wire) to
remove tightly adhering deposits. A fiber scraper may be
used to remove the gasket and shellac from casing
flanges.
a. Blow dry with clean dry compressed air.
b. Clean bearings as described in 1-5.
1-5. CLEANING BEARINGS.
a. Remove bearings from the housings, referring to
disassembly instructions.
b. Place bearings in a wire basket to there is space for
the cleaning solvent to reach all parts.
c. Immerse the basket in Stoddard solvent or equivalent,
agitating the basket until grease is thoroughly loosened
and can be flushed out.
d. Place bearing on a screened surface.
e. Using a spray gun with air filter and clean Stoddard
solvent, flush each bearing until all grease and sludge is
removed.
f. Blow solvent out of bearings with dry filtered air.
g. Lubricate bearings immediately after cleaning with
light spindle oil and place them in a covered container.
h. Do not spin bearings any time during cleaning.
SECTION II
INSPECTION AND REPAIR
and the ID of the casing rings (7 and 7A). Compute the
diametrical clearance (ID minus OD) and compare with the
limits given in Figure 5. ID surface of casing ring must be
smooth and concentric. For pumps equipped with impeller
rings, clearances should not exceed two times the maximum
amount shown for pump type in Figure No. 5.
d. Measure OD of inter stage sleeve (58) and ID of inter-stage
bushing (113). Compute diametrical clearance and compare
with limits given in Figure 6. ID surface of inter-stage bushing
must be smooth and concentric. Sleeve lands must be free
from burrs and flat spots.
e. Examine impeller passages for cracks, dents, gouges or
embedded material.
f. Check upper and lower casing machined surfaces to be free
from burrs or nicks.
2
2883820

g. Inspect shaft sleeves (14) for excessive wear.
h. Inspect bearings per Table I.
2-2. REPAIR. Make needed repairs in the following
manner:
a. If ID of casing ring (7, 7A) is grooved, scored or
eccentric, bore to produce a smooth, concentric surface.
Do not bore casing ring more than 1/8 inch larger than
original ID. If larger bore is required to produce a smooth
surface, replacement of casing ring and impeller ring is
recommended. Measure and record the new ID.
b. If impeller rings are defective, or mating casing rings
require boring, remove the old rings by turning in a lathe
– be sure machining is concentric with impeller ID. Use
care NOT to reduce hub OD.
NOTE
For bronze impellers and rings, the ring is shrunk on the
hub according to standard fit FN-4 of ANSI B4.1
standards.
For pumps of 10-inch discharge and larger, the rings are
also tack welded to the hub at 3 places 120 degrees apart.
Hardened impeller rings are installed according to ANSI
B4.1 standard fit FN-1.
c. Install new ring son the impeller (shrink or press
depending on material) and tack weld if old rings were
tacked. The ID is factory-machined for proper fit.
d. Turn the OD of the new rings to provide the proper
diametrical clearance and to be smooth and concentric
with hub bore. Use clearance limit from Figure 5, and ID of
casing ring from paragraph 2-2 a. to compute OD of
impeller rings.
e. Replace worn shaft sleeves.
f. Straighten or replace shafts having excessive run-out
(eccentricity).
Figure 1 TYPE TU TUF-2 STAGE PUMPS WITH INTERNAL OR EXTERNAL CROSS-OVER GREASE LUBRICATED
BEARINGS
Parts List
Item No. Description Item No. Description
1A Lower Casing 32 Impeller Key
1B Upper Casing 33 Outboard Bearing Housing
2 Right Hand Impeller 35 Bearing Cover
2A Left Hand Impeller 40 Water Deflector
6 Shaft 41 Bearing Cap
7 Right Hand Casing Ring 46 Coupling Key
7A Left Hand Casing Ring 58 Inter-stage Sleeve
13 Packing 63 Stuffing Box Bushing
14 Shaft Sleeve 68 Shaft Collar
16 Outboard Bearing 69A Bearing Lock washer
17 Packing Gland 73A Casing Gasket (Not Shown)
17B Gland Bolt 73B Bearing Cover Gasket
18 Outboard Bearing 113 Inter-stage Bushing
22 Bearing Locknut 127 Seal Piping
29 Lantern Ring 128 Inter-stage Sleeve Key
31 Inboard Bearing Housing 130 Shaft Sleeve “O”-Ring
3 2883820

4851914
Rev. 3-88
Figure 1A TYPE TU 2 STAGE PUMPS WITH INTERNAL OR EXTERNAL CROSS-OVER OIL LUBRICATED BEARINGS
Parts List
Item
No. Description Item No. Description
1A Lower Casing 33 Outboard Bearing Housing
1B Upper Casing 35 Bearing Cover
2 Right Hand Impeller 40 Water Deflector
2A Left Hand Impeller 41 Bearing Cap
6 Shaft 46 Coupling Key
7 Right Hand Casing Ring 58 Inter-stage Sleeve
7A Left Hand Casing Ring 63 Stuffing Box Bushing
13 Packing 68 Shaft Collar
14 Shaft Sleeve 69A Bearing Lock-washer
16 Outboard Bearing 73A Casing Gasket (Not Shown)
17 Packing Gland 73B Bearing Cover Gasket
17B Gland Bolt 107A Oil Retaining Shield
18 Outboard Bearing 113 Inter-stage Bushing
22 Bearing Locknut 125 Constant Level Oiler (Not Shown)
29 Lantern Ring 127 Seal Piping
31 Inboard Bearing Housing 128 Inter-stage Sleeve Key
32 Impeller Key 130 Shaft Sleeve “O”-Ring
Coolant flow per bearing is 1 US GPM @ 50 Psig maximum, coolant temperature 90º F. . maximum. Normal
coolant medium is water
2883820 4

FIGURE 2 – TUT, TUTF 3 STAGE
GREASE LUBRICATED BEARINGS
2874541
Rev. 3-88
Parts List
Item
No. Description Item No. Description
1A Lower Casing 35 Bearing Cover
1B Upper Casing 40 Water Deflector
2 Right Hand Impeller 41 Bearing Cap
2A Left Hand Impeller 46 Coupling Key
6 Shaft 58 Inter-stage Sleeve
7 Right Hand Casing Ring 58A Inter-stage Sleeve A
7A Left Hand Casing Ring 63 Stuffing Box Bushing
13 Packing 68 Shaft Collar
14 Shaft Sleeve 69A Bearing Lock washer
16 Outboard Bearing 73A Casing Gasket (Not Shown)
17 Packing Gland 73B Bearing Cover Gasket
17B Gland Bolt 113 Inter-stage Bushing
18 Outboard Bearing 127 Seal Piping
22 Bearing Locknut 128 Inter-stage Sleeve Key
29 Lantern Ring 130 Shaft Sleeve “O”-Ring
31 Inboard Bearing Housing
32 Impeller Key
33 Outboard Bearing Housing
5
2883820

FIGURE 2A – TUT 3 STAGE
OIL LUBRICATED BEARINGS
4858505
Rev. 3-88
Parts List
Item No. Description Item No. Description
1A Lower Casing 35 Bearing Cover
1B Upper Casing 40 Water Deflector
2 Right Hand Impeller 41 Bearing Cap
2A Left Hand Impeller 46 Coupling Key
6 Shaft 58 Inter-stage Sleeve
7 Right Hand Casing Ring 58A Inter-stage Sleeve A
7A Left Hand Casing Ring 63 Stuffing Box Bushing
13 Packing 68 Shaft Collar
14 Shaft Sleeve 69A Bearing Lock washer
16 Outboard Bearing 73A Casing Gasket (Not Shown)
17 Packing Gland 73B Bearing Cover Gasket
17B Gland Bolt 107A Oil Retaining Shield
18 Outboard Bearing 113 Inter-stage Bushing
22 Bearing Locknut 125 Constant Level Oiler (Not Shown)
29 Lantern Ring 127 Seal Piping
31 Inboard Bearing Housing 128 Inter-stage Sleeve Key
32 Impeller Key 130 Shaft Sleeve “O”-Ring
33 Outboard Bearing Housing
Coolant flow per bearing is 1 US GPM @ 50 Psig maximum, coolant temperature 90º F. . maximum. Normal
coolant medium is water
2883820 6

BEARING MOUNTING
FIGURE 2, BEARING REMOVAL AND MOUNTING
BEARING REMOVAL
-COURTESY OF NEW DEPARTURE-
USING AN ARBOR PRESS
1. PLACE THE BEARING ON
TWO FLAT BLOCKS SO
THAT THEY CONTACT THE
INNER RING OR BOTH
RINGS OF THE BEARING.
2. HOLD SHAFT STRAIGHT –
FORCE THE SHAFT BY A
STEADY PRESSURE, UNTIL
THE BEARING IS SEATED
AGAINST THE SHAFT
SHOULDER.
USING TUBING
1. PLACE THE BEARING ON
SHAFT.
2. PLACE TUBING OVER SHAFT
IN CONTACT WITH THE
INNER RING OF THE
BEARING.
3. APPLY HAMMER ALTERNATELY
AT OPPOSITE POINTS –
AVOID COCKING.
USING A BEARING PULLER
1. PLACE BEARING PULLER
BEHIND BEARING INNER
RING. SET PULLER JAWS
SO THAT THEY WILL NOT
SLIP OVER THE INNER RING
AND DAMAGE SPARATOR
OR SHIELD WHEN PRESSURE
IS APPLIED.
2. FORCE BEARING OFF SHAFT
BY A STRAIGHT PULL.
DO NOT COCK BEARINGS.
USING AN ARBOR PRESS
1. REST THE BEARING INNER
RING OR BOTH RINGS
(NEVER THE OUTER RING
ONLY) AGAINST A PAIR OF
FLAT BLOCKS.
2. FORCE THE SHAFT OUT BY
A STEADY PRESSURE – KEEP
SHAFT STRAIGHT – DO NOT
ALLOW SHAFT TO COCK OR
DROP.
7 2883820

IMPELLER/CASE WEAR RING DIAMETERICAL CLEARANCES (INCHES)
0.010
0.014
1½ TU7, 15TU7A2, 15TUT7A3, 2TU8, 2TU8A2, 2TU10,
2TU10A2, 2TU10G2, 2TU12, 2TU12A2, 3TU10, 3TU10A2,
3TU13, 3TU13A2, 3TU13G2, ,3TU13 ½, 3TU135A2, 3TU135G2,
3TUT13, 3TUT13A3, 3TUT13G3,
0.012
0.016
4TU10, 4TU10A2, 4TU11A2, 4TUF11, 4TU14,4TUF5, 4TU14A2,
4TU14G2, 4TUT14A3, 4TUT14G3, 4TUTF14, 5TU13, 5TU13B,
5TU13B2, 5TUF13B, 5TU15, 5TU15A2, 5TUF7, 5TUT16,
5TUT16B, 5TUT16C3, 5TUT16G3, 5TUT16N3, 5TUTF16B
0.014
0.018 6TU16, 6TU16B, 6TU16C2, 6TU16G2, 6TUF10
0.018
0.022 8TU16, 8TU16A2, 8TU16F, 8TU16G2, 8TU17, 8TUF15, 10TU22B
0.022
0.026 10TU22C, 10TU22C2
FIGURE 5
INTERSTAGE SLEEVE/BUSHING DIAMETRICAL CLEARANCES (INCHES)
0.008
0.012
1½ TU7, 15TU7A2, 2TU8, 2TU8A2, 2TU10, 2TU10A2, 2TU10G2, 2TU12, 2TU12A2, 3TU10,
3TU10A2, 3TU13, 3TU13A2, 3TU13G2, ,3TU13 ½, 3TU135A2, 3TU135G2, 4TU10, 4TU10A2,
4TU11A2, 4TU14, 4TU14A2, 4TU14G2, 4TUF5, 5TU13, 5TU13B, 5TU13B2, 5TUF13B,
5TU15, 5TU15A2, 5TUF7, 6TU16, 6TU16B, 6TU16C2, 6TU16G2, 6TUF10, 1 ½TUT7-3,
15TUT7A3, 3TUT13, 3TUT13A3, 3TUT13G3, 4TUT14, 4TUT14A3, 4TUT14G3,4TUTF14,
5TUT16, 5TUT16B, 5TUT16C3, 5TUT16G3, 5TUT16N3, 5TUTF16B
0.010
0.014
8TU16, 8TU16A2, 8TU16F, 8TU16G2, 8TU17, 8TUF15, 10TU22B
0.020
0.024 10TU22C, 10TU22C2
FIGURE 6
NOTE
Clearances are for standard bronze or cast iron fitted pumps. For materials with a tendency to gall, such as
stainless steel, increase clearance approximately .010 inch.
2883820 8

SECTION III – REASSEMBLY
Figure 7. Vane Position for Proper Rotation
3-1. ROTATING ELEMENT. (See Figure 7 or 8).
Reassemble as follows:
a. Coat shaft (6) lightly with oil. Re-oil as necessary while
pressing on impellers and sleeves.
b. Install 3/16 square key in shaft. With grooves, square
shoulder side, facing toward the highest number stage,
press interstage sleeve (58) on outboard end of shaft,
locating centrally between first two key slots. Slide
interstage bushing (113) over sleeve.
Figure 8. Assembly Relationship of Interstage Sleeve (58)
c. Insert key (32), align third (or second) stage impeller
(2B) and press on inboard end of shaft to contact inter-
stage sleeve.
d. Press on interstage sleeve (58A) to contact third stage
impeller. Located casing ring (7) on third stage impeller
ring (8).
e. In turn, insert remaining keys (32), align second
and/or first stage impellers (2A, 2) and press on shaft.
Carefully bump parts to remove all clearance and so that
first and second stage impeller hubs extend equally
beyond central portion of shaft (slightly into threaded
portions).
f. Install O-rings in shaft sleeves (14), coat ring and
shaft with oil and screw sleeves on shaft against
impeller hubs.
g. Install the stuffing box bushing (63) and lantern ring
(29) on the shaft.
h. Locate casing rings (7) on impeller.
i. Place water deflectors (40) on shaft.
j. Slide bearing covers (35) (with oil seals (107)
installed for oil lubricated bearings) on the shaft.
k. Place shaft collars (68) on the shaft.
l. Mount the bearings (16) and (18) as described in Figure
3. The outboard bearings are two single row angular
contact bearings mounted in the duplex DB mounting.
m. Install bearing lockwasher (69A) and locknut (22) (oil
thrower) and tighten against the outboard bearing.
n. Install gaskets (73B) on bearing covers. Cut replace-ment
gaskets from 1/16 inch No. 444 Vellumoid. Apply cement
(i.e. Permatex No. 2) to bearing cover gaskets when
bearings are water-cooled.
o. Slide the housings (31, 33) over the bearings. Tap lightly
and evenly around the end as necessary. Do not force.
p. Attack the bearing covers (35). In the assembled position,
the grease fittings or breather tubes must be located on top.
q. Locate water deflector (40) and tighten the setscrews.
Install oil seal (107) in the inboard bearing housing (31) (for
oil lubricated bearings).
r. Install coupling key; assemble coupling half on the shaft
and tighten the setscrew.
s. Check run out of the interstage sleeves on assembled
rotor. Maximum run out must not exceed .006 TIR.
3-2. PUMP. Complete the assembly of pump as follows:
a. Use the upper casing (1B) as a template to cut a gasket
(73A) from 1/64 inch Vellumoid. Machined surfaces of both
casings must be perfectly clean and free from burrs and
nicks.
b. Affix the new gasket to lower casing (1A) with shellac.
c. Use slings around the shaft near bearings to set rotating
element into lower casing. Position the casing rings (7, 7A),
and both bearing housings so that all dowel pins engage. If
necessary, loosen setscrews of water and grease deflectors
to shift bearing housings slightly. Retighten screws.
d. Assemble both bearing caps (41) and tighten the cap
screws.
e. If impellers are not (approximately) centered in volute or
impellers are not allowing case rings to seat in casing, adjust
shaft sleeves by loosening one and tightening the other in
direction required. Tighten setscrews in sleeve after final
adjustment is made. Recheck run out of inter-stage sleeves.
If run out exceeds. 006 TIR, do not proceed until
problem is corrected.
f. Cover the topside of the casing gasket with a mixture of
graphite and oil. Install the gland bolts (17B). Carefully
locate the upper casing on the lower, making certain the
dowel pins engage. Attach case nuts and alternately tighten
at diagonally opposite positions. See Torque Chart, Table II.
Rotate shaft by hand to check that it runs free.
g. Withdraw the lantern rings (29) and push the bushings
(63) to the rear of the stuffing boxes. Insert the same
number of packing rings as were found during disassembly
on each side of the lantern ring. Insert each ring separately
and stagger the joints of successive rings 90 degrees. Insert
the glands (17) and set the nuts tight – DO NOT USE A
WRENCH.
h. Rotate shaft by hand to check that it runs free.
i. Replace all drain plugs removed during disassembly.
3-3.Reinstall plumbing (if used) for water-cooled bearing.
a. Relubricate the bearings. Refer to Bulletin No. 2880549
for grease type recommendation. It is most important to
provide proper lubrication and keep bearings clean. Fre-
quency of lubrication must be determined by experience as it
depends upon bearing size, speed, operating conditions and
location (environment). Table III should be used as
9
2883820

TABLE I
BEARING DEFECTS
(Failures – Replace if found)
DEFECT (Failure)
Flaking and cracking APPEARANCE In the early stages, the surface of the
inner
and outer races develop small cracks,
which
flake. The cracks and flaking ultimately
spread over the entire race surface.
PROBABLE CAUSE
1. Normal fatigue failure.
Bearing loads in excess of bearing capacity caused by misalignment.
Indentations Indentations or cavities in the inner and
outer races. 1. Dirt in the bearings. 2 Excessive impact loading of the bearings such as improper
mounting or removal.
Broken separator (cage) Cracked separator or separator in pieces. Poor Lubrication.
1. Misalignment of shaft.
2. Excessive shaft deflection.
Wear Bore and OD of outer ring of bearing
galled or braided. 1. Fit on shaft or in housing too loose. 2 . Bearing locked by dirt and turning on shaft or in housing.
Fractured ring Hairline cracks or complete ring fracture. 1. Forcing a cocked bearing on or off a shaft.
2. Too heavy a press fit.
Discoloration Rolling elements and races darker than
Normal appearance of bearing metal.
(Moderate discoloration of rolling elements
and races not a reason for discard.)
1. Inadequate lubrication.
Corrosion Rolling elements and raceways rusted. 1. Water entering the housing.
2. Condensation inside the housing.
Lubricant breaks down into acid. (Wrong lubricant.
TABLE II
TORQUE
VALUECHART
TORQUE VALUE (FT-
LB)
TORQUE VALUE CHART
TORQUE VALUE (FT-LB)
SIZE INCH MEDIUM CARBON STEEL, SAE 5,
105-120,000 PSI, MAT’L CODE
509
3/4 210-225
7/8 305-325
1 450-475
1-1/8 605-635
1-1/4 850-890
1-1/2 1465-1525
Torque values shown are for clean and
lubricated threads: gasketed joints.
Studs must be driven tight in lower casing
when used. Install upper case, tighten center
nut (or cap screws) then work out from center
to each side, tightening with torque wrench to
values shown in Table II.
2883820
TABLE III
GREASING FREQUENCY
(See Table IV for amounts)
SERVICE
Normal, 8-hour day operation,
Room free of dust and damaging
atmosphere.
GREASE EACH
6 Months
Severe, 24-hour day operation.
room with moderate dust and/or
damaging atmosphere,
or outdoor service.
1 Month
Light, approximately 10-hour
eek. Room relatively free of dust
and damaging atmosphere.
1 Year
TABLE IV
AMOUNT OF GREASE FOR BALL BEARINGS
OUNCES GRAMS MODEL
1.3
1.4
2.0
3.0
4.5
5.8
9.5
17.0
36.4
39.2
56
84
126
162.4
266
476
1½TU7, 1½TUT7-3, 15TU7A2,
15TUT7A3
2TU8, 2TU8A2, 2TU10, 2TU10A2,
2TU10G2, 2TU12, 2TU12A2, 3TU10,
3TU10A2
3TU13, 3TU13A2, 3TU13G2,
3TU13½, 3TU135A2, 3TU135G2,
4TU14,4TUF5, 4TU14A2, 4TU14G2,
4TUF14, 4TU11A2, 4TUF11,
3TUT13, 3TUT13A3, 3TUT13G3
5TU15, 5TU15A2, 5TUF7
5TU13, 5TU13B, 5TU13B2,
5TUF13B, 6TU16, 6TU16B,6TUF10,
6TU16C2, 6TU16G2, 5TUT16,
5TUT16B, 5TUT16C3, 5TUT16G3,
5TUT16N3, 5TUTF16
8TU16, 8TU16A2, 8TU16F,
8TU16G2, 8TU17, 8TUF15
10TU22B, 10TU22C, 10TU22C
10

a guide for grease re-lubrication.
b. Oil. (Pumps are shipped without oil in the bearing housings.) Be
sure to fill and adjust constant level oilers before initial start of pump
(see Figure 9).
(1) Adjust dust cap to lowest possible position on base
fittings.
(2) The pipe nipple and base fitting must be level; check with spirit
level. If pipe nipple is bent, replace it. A constant level oiler that is not
level will not provide proper lubrication to the bearings.
(3) Fill bottle, screw it into the dust cap as far as it will go- do not
force. Allow the oil to flow into the bearing housing. Repeat this
procedure until there remains a supply of oil in the bottle. Never fill
bearing housing through base fitting.
(4) Check the breather tube for cleanliness. The breather tube must
be used with the oil lubrication system.
(5) The bottle on the constant level oilers is made of plastic- the oil
temperature must never exceed 170 degrees Fahrenheit.
Or solvents such as alcohol be put in it. For such
applications, use a glass bottle.
c. Consult the driver manufacturer’s Maintenance instructions for
lubricants and re-lubrication procedure for the driver bearings.
d. Replace coupling guard.
3-4. TEST. Follow instructions in Bulletin No. 2880549 to check out
the pump after repair.
3-5. TROUBLES. To reliably establish the malfunction-ing of either
the pump or driver, instruments such as tachometers, pressure
gauges and electric meters must be in proper working condition and
preferably of recent calibration. In many cases, much time and
expense have been expended with faulty instruments. Table V lists a
number of troubles commonly occurring. If unable to determine the
cause, and remedy the trouble, from this list, refer the problem to the
Peerless representative.
LUBRICATING INSTRUCTIONS
1. The pump is shipped without oil in the LUBRICATING OILS
bearing housings. A high quality turbine oil of 330SSU viscosity at 100 degrees
2. Change the first oil after operating 1000 Fahrenheit with rust and oxidation inhibitors should be used.
hrs. or 60 days, whichever occurs sooner.
3. Frequency of oil change thereafter is RECOMMENDED OIL MANUFACTURERS
dictated by service conditions. It is
suggested, however, that oil changes
occur at least every 3,000 hrs. of operation.
4. In order to keep the bearing housings
vented, the breather tubes and filters
must be kept clean.
Atlantic Richfield DURO S-315, DURO AW S-315
Chevron CHEVRON OC TURBINE OIL-68
Exxon TERESSTIC 68
Gulf GULF HARMONY 68
Mobil DTE 26 300SSU
Sunoco SUNVIS 968
FIGURE 9
TABLE V-TROUBLES
TROUBLE
PROBABLE CAUSE REMEDY
Failure to deliver liquid or sufficient
pressure. Pump not primed.
Pump not up to speed.
Discharge head too high.
Insufficient available NPSH.
Incorrect direction of rotation.
Air leaks in suction line or through suction
end stuffing box, suction pressure
below atmospheric.
Impeller passages restricted.
Worn impeller sealing diameters or
mating stationary part bores.
Damaged impeller.
Foot valve too small or restricted by dirt.
Leaking discharge check valve on
stand-by pump.
Recirculation valve open or leaking
Re-prime.
Check for low motor voltage or motor over-
load. Other drives, increase driver speed
when possible.
Check to see that all discharge valves are
opened and the discharge line is free from
obstructions. In some cases, the installation
has to be altered or a pump of suitable rating
must be provided.
Check NPSH requirements of pump and
increase system NPSH accordingly.
Check rotation of driver.
Tighten packing. Check for air leaks past
O-ring under sleeve. Passage from eye side
shroud of first stage impeller to suction stuffing
box must be open to deliver sealing fluid to
packing. Check suction line joints for air
leakage. Check mechanical seal if installed.
Disassemble the pump and clean impeller.
Repair or replace impeller and/or stationary
parts.
Repair or replace impeller.
Replace with adequate size foot valve or clean
foot valve.
Repair or replace.
Close, repair or replace.
11 2883820

TABLE
V
-TROUBLES
(
continued
)
TROUBLE PROBABLE CAUSE REMEDY
Pump loses prime after starting Air leaks in suction line.
Insufficient available NPSH
Tighten packing. Check for air leaks between
sleeve and shaft and replace O-ring if there
is an air leak. Check all suction line joints
for bad gaskets and loose joints.
Check NPSH requirements of the pump and
increase the system available NPSH
accordingly.
Overload on driver Pump speed high.
Total head lower than rating.
Tight packing.
Liquid is of higher specific gravity or
Viscosity than rating.
Mechanical trouble of pump or driver.
Motor voltage higher than name plate rating
will cause the motor to run faster. Either
reduce motor voltage or trim impeller
diameter. On other drives, reduce speed if
possible. If speed reduction not realized,
trim impeller diameter.**
Check suction and discharge pressures and
determine the total dynamic head. If TDH
lower than ratings, throttle discharge to rated
TDH or, if this is not possible, reduce
impeller diameter.**
Stop pump – following proper repacking pr-
cedure. Check for scored sleeve; and for sleeve
run-out if packing wears rapidly. Replace
sleeve and packing as required.
Check with Peerless distributor to determine
If a larger motor is required.
See if pump and motor turn freely. Check
impeller fit, shaft straightness and ball
bearings.
Pump vibrates or is noisy Driver unbalanced.
Misalignment
Cracked foundation.
Worn ball bearings.
Unbalanced impeller.
Bent shaft.
Disconnect driver and operate it alone. Check
pump for large pieces of debris, such as wood,
rags, etc.
Realign pumping unit.
Replace foundation.
Replace bearings. Check lubricants for proper
Grade. Check pump alignment. Check for
Condensation on water cooled bearings.
Rebalance.
Replace
** Always obtain new trim diameter from Peerless Pump Company representative.
3-6. SPARE PARTS. To keep delays to a minimum
when pump repairs are required, we suggest that the
following spare parts be stocked. The number of each
part required depends upon the application. For a
minimum, we recommend:
(A) One inboard bearing.
(B) One outboard bearing.
(C) One set of shaft sleeves for packed pumps.
(D) 2-4 sets of packing for packed pumps or a set of
mechanical seals for pumps so equipped.
(E) One set of case wear rings when fitted.
(F) In some cases, an entire rotating element should be
stocked.
3-7. To obtain quick and accurate service when ordering
spare parts, provide the following information:
(A) Pump size and type as noted on nameplate.
(B) Pump serial number as noted on nameplate.
(C) The name and number of the parts as shown on
the sectional drawings.
(D) Quantity required of each item.
Aid may be obtained from the Peerless Pump Company
representative, or an authorized distributor, for planning
an adequate supply of spare parts.
NOTICE: Materials of construction, specifications,
dimensions, design features, and application
information, where shown in this bulletin, are subject to
change and/or modification without notice by Peerless
Pump Company at their option.
Peerless Pump Company
P.O. Box 7026- Indianapolis, IN 46207-7026
Phone: [phone]-Fax: [phone]
BULLETIN NO. 2883820
Rev 10-04
12