Ingersoll-Rand ARO WLM2203A 2 Series User manual

OPERAT OR’S MANUAL WLM2203A-X2
RELEASED: 5-3-99
REVISED: 11-30-00
(REV. D)
TWO-BALL PUMP SERIES
2” AIR MOTOR
3:1 RATIO
0 - 375 PSI RANGE
INCLUDE MANUAL: SĆ633 GENERAL INFORMATION (PNĂ97999Ć625)
INCLUDING: SPECIFICA TIONS, SER VICE KITS, GENERAL INFORMA TION, P ARTS, TROUBLESHOOTING
WLM2203A-X2
READ THIS MANUAL CAREFULL Y BEFORE INST ALLING,
OPERA TING OR SER VICING THIS EQUIPMENT .
It is the responsibility of the employer to place this information in the hands of the operator . Keep for future reference.
SERVICE KITS
•Use on y genuine ARORrep acement parts to assure compatib e
pressure rating and ongest service ife.
•637224 Pump Rebuild Kit. Inc udes the necessary soft parts for
norma service of the entire pump.
SPECIFICATIONS
Model Series (Refer to option chart) WLM2203AĆX2..
Type Air Operated, Two Ba ,....................
Doub e Acting Oi Pump
Ratio 3:1....................
Air Motor Diameter 2" (5.08 cm).........
Stroke 3" (7.62 cm)..................
Air Inlet Rc 1/4 (1/4 Ć 19 BSP Taper) (f)................
Material Inlet Rp 3/4 (3/4 Ć 14 BSP Para e ).............
Material utlet Rp 1/2 (1/2 Ć 14 BSP Para e ) (f)...........
Pump Construction Carbon Stee.......
Dimensional Data see Pump Data"..........
Weight see chart...................
PERF RMANCE
Air Inlet Pressure Range 0 Ć 125 p.s.i. (0 Ć 8.6 bar).....
Fluid Pressure Range 0 Ć 375 p.s.i. (0 Ć 25.9 bar).......
Max. Rec'd Cycles / Minute 125...
Displacement In3Per Cycle 6.2...
Volume / Cycle 3.46 oz. (102.28 m )............
Cycles Per Gallon (Liter) 37 (9.8).....
Maximum Working Flow Rate 6 gpm (23 /m).
Maximum Flow Rate 9 gpm (34 /m)........
Noise Level @ 100 p.s.i.Ć124 cpm 80 db(A)*
Accessories Available 61113 Wa Mount Bracket.......
66073Ć1 Air Line Connection Kit
*The pump sound pressure eve has been updated to an Equiva ent Continuous Sound
Leve (LAeq) to meet the intent of ANSI S1. 13Ć1971, CAGIĆPNEUROP S5.1 using four
microphone ocations.
PUMP DA TA
FIGURE 1
Rc 1/4 (1/4 Ć 19 BSP Taper)
Air Inlet (female)
M DEL WLM2203AĆX2
Rp 1/2 (1/2 Ć 14 BSP Parallel)
Material utlet (female)
N TE: Pump is assembled
with material outlet located
180_from the air inlet.
NOTE: Dimensions are shown in inches and (mm), supp ied for reference on y and are typica y
rounded up to the nearest 1/16 inch.
‘‘B”
1Ć5/16"
(33.4 mm)
Rp 3/4 (3/4 Ć 14 BSP Parallel)
Material Inlet (female)
6Ć29/32"
(175 mm)
‘‘A”
18Ć1/32"
(458.0 mm)
M DEL A" (mm) B" (mm) WEIGHT (kg)
WLM2203AĆ12 N / A N / A 11 (4.99)
WLM2203AĆ42 49Ć11/16" (1261.5) 31Ć25/32" (806.9) 14.4 (6.53)
2" NPT BUNG ADAPTER
Rp 3/4 (3/4 Ć 14 BSP Parallel)
Material Inlet (female)
IMP RTANT
This is one of two documents which support the pump.
Replacement copies of these forms are available upon request.
=WLM2203AĆX2 MODEL OPERATOR'S MANUAL
-SĆ633 GENERAL INFORMATION LUBRICATION PISTON PUMPS
E2000 DPRINTED IN U.S.A.
& [phone] D F AX [phone]
INGERSOLL-RAND COMPANY
P.O. BOX 151 DONE ARO CENTER DBRYAN, OHIO 43506Ć0151
PATENTED

WLM2203AĆX2PAGE2 F4
PARTS LIST / WLM2203A-X2
Item Description (Size in inches) (Qty) Part No. Item Description (Size in inches) (Qty) Part No.
1 Bolt (4) 94333
2 Upper Cap (1) 95035
n3 Track Gasket (2) 94311
4 Sleeve (2) 94316
n5  " Ring (1/16" x 11/16" o.d.) (4) Y325Ć15
n6  " Ring (1/8" x 3/4" o.d.) (4) Y325Ć206
7 Spool (2) 94310
n8 U" Cup (1/8" x 3/4" o.d.) (2) Y240Ć7
n9  " Ring (.106" x .587" o.d.) (2) 15066ĆPM
10 Muffler (1) 95037
11 Cylinder (1) 94249
12 Retaining Ring (1) 94406
n13 U" Cup (3/16" x 2" o.d.) (2) Y240Ć23
14 Piston (1) 94780
15 Lower Cap (1) 95038
n16  " Ring (1/8" x 1Ć3/8" o.d.) (1) Y325Ć216
17 Bushing (1) 94332
n18 Packing (1/4" x 1Ć5/8" o.d.) (1) 94337
n19  " Ring (3/32" x 1" o.d.) (1) Y325Ć117
20 Piston Rod (1) 94779
21 Groove Pin (3/16" o.d. x 1Ć1/8" long) (1) 94338
22 Spring (1) 94705
23 Ball (3/4" dia.) (1) Y16Ć224
24 Inner Check (1) 94279
n25  " Ring (3/16" x 1Ć7/16" o.d.) (1) Y325Ć319
26 Base (1) 94309Ć1
27 Nut (4) 93828
n28  " Ring (1/16" x 1Ć3/4" o.d.) (1) Y325Ć30
29 Tube (1) 94314Ć1
n30  " Ring (3/32" x 1Ć9/16" o.d.) (1) Y325Ć126
31 Ball (1" dia.) (1) 90532Ć6
32 Ball Stop Pin (.187" dia. x 1.430" long) (1) 94339
33 Foot Valve (1) 94315Ć1
n34  " Ring (1/16" x 7/16" o.d.) (1) Y325Ć11
36 Adapter (1) 94447Ć1
37 Foam Liner (2) 95039
38 Ground Screw (#10 Ć 32 x 1/4") (1) 93005
39 Bung Ass'y (includes items 40 and 49) (1) 67145Ć3ĆB
40 Thumb Screw (1/4" Ć 20 x 1Ć1/2") (1) Y197Ć158ĆC
41 Pipe Extension Ć Rp 3/4 (3/4 Ć 14 BSP taper)
(models WLM2203AĆ42 only)
(1) 94537Ć4
42 Valve Housing (1) 94535Ć1
43 Ball Guide (1) 77904
44 Ball (1" dia.) (1) Y16Ć232
n45  " Ring (3/32" x 1Ć7/16" o.d.) (1) Y325Ć124
46 Ball Seat (1) 94534Ć1
47 Valve Ass'y (includes items 42 thru 46)
(models WLM2203AĆ42 only)
67085Ć1
48 Washer (1) 94515
49 Nut (1/4" Ć 20) (1) Y12Ć4ĆC
nDarina EP" 2 Grease Packet (1) 94833
nParts in Repair Kit 637224
GENERAL DESCRIPTION
Mode WLM2203AĆX2 Series TwoĆba doub e acting pumps are inĆ
tended to be used primari y for oi transfer and de ivery systems. It is
best to use this pump with ow - medium viscosity f uids. It uses carbon
stee and other materia s which make it compatib e with most petroĆ
eum based ubrication products. The twoĆba design provides better
priming of the ower foot va ve. Doub e acting pumps wi de iver materiĆ
a on both the up and down stroke.
NOTE: If this pump was purchased separate y (not part of a system),
consu t your sa es representative for compatib e dispensing accessoĆ
ries which wi best match the app ication. A accessories must be ab e
to withstand the maximum pressure deve oped by the pump.
OPERATING AND SAFETY PRECAUTIONS
READ THE GENERAL INF RMATI N MANUAL INCLUDED F R
ADDITI NAL PERATING AND SAFETY PRECAUTI NS AND
THER IMP RTANT INF RMATI N.
STATIC SPARK. Can cause explosion resulting in severe injury or
death. Ground the pump and pumping system.
EXCESSIVE INLET PRESSURE. Can cause explosion resulting in
severe injury or death. Do not exceed maximum operating
pressure of 25.5 bar (370 p.s.i.) at 8.5 bar (123 p.s.i.) inlet air
pressure. Do not run pump without using a regulator to limit
air supply pressure to the pump.
PUMP RATI X
INLET PRESSURE T PUMP M T R =MAXIMUMPUMP FLUIDPRESSURE
Pump ratio is an expression of the re ationship between the pump motor area and
the ower pump end area. EXAMPLE: When 125 p.s.i. (8.6 bar) in et pressure is
supp ied to the motor of a 3:1 ratio pump it wi deve op a maximum of 375 p.s.i.
(25.9 bar) f uid pressure (at no f ow) - as the f uid contro is opened, the f ow rate
wi increase as the motor cyc e rate increases to keep up with the demand.
EXCESSIVE MATERIAL PRESSURE. Can cause equipment failure
resulting in severe injury or property damage. Do not exceed
the maximum material pressure of any component in the sysĆ
tem.
NOTICE: Therma expansion can occur when the f uid in the mateĆ
ria ines is exposed to e evated temperatures. Examp e: Materia
ines ocated in a nonĆinsu ated roof area can warm due to sun ight.
Insta a pressure re ief va ve in the pumping system.
Replacement warning label is available upon request, PN \ 94520.

WLM2203AĆX2 PAGE3 F4
PARTS LIST / WLM2203A-X2
1
2
3
4
6
8
9
12
13
14
15
16
17
18
19
21
22
23
24
25
26
27 ,
28
29 ,
30
31
32
7
5
11
7
8
9
6
13
3
33 ,
20
FIGURE 2
.T RQUE REQUIREMENTS ,
(27, 36) 9 Nm (79.7 in. lbs)
(29, 33) 88 Ć 95 Nm (64.9 Ć 70.1 ft lbs)
5
4
10
34
.36
37
49
39
LOWER SECTION
UPPERSECTION
38
48
40
41
42
43
44
45
46
47

WLM2203AĆX2PAGE4 F4
PLACING INT O SER VICE
AIR AND LUBRICATI N REQUIREMENTS
Fi tered air wi he p extend the ife of the pump, a owing the pump to
operate more efficient y and yie d onger service ife to moving parts and
mechanisms.
•Insta an air ine fi ter to provide good qua ity c ean and dry air.
Insta it up stream from the regu ator.
•Use an air regu ator on the air supp y to contro the pump cyc e rate.
Insta the regu ator as c ose as possib e to the pump.
•In most insta ations, ubrication is not required. If the pump needs
to have ubrication, insta an air ine ubricator and supp y it with a
good grade of nonĆdetergent oi or other ubricant compatib e with
Nitri e sea s and set at a rate not to exceed one drop per minute.
INSTALLATI N
•Mount and secure the pump as required for the app ication.
•Attach a ground wire from the pump ground screw to a suitab e
ground.
•Connect a f uid hose to the pump out et. In most cases a pipe sea Ć
ant shou d be used on thread connection. Tighten a fittings. Use
caution not to damage threads.
OPERATION
STARTĆUP
1. Turn the air regu ator to 0" pressure setting.
2. Immerse the ower pump end into the materia .
3. Open the dispensing device.
4. Start the pump cyc ing s ow y by raising the pressure to 1.4 Ć 2.1 bar
(20 Ć 30 p.s.i.).
5. C ose the dispensing device. A ow the pump to sta and bui d ine
pressure. Check for any eaks and tighten fittings asneeded. Adjust
pressure as required for the app ication.
SHUTD WN
•Disconnect the air supp y from the pump if it is to be inactive for a
few hours. Open the dispensing device to re ieve ine pressure.
SERVICE
PUMP DISASSEMBL Y / REASSEMBL Y
N TICE: The unique design of this pump a ows for quick basic pump
service without tota remova from the drum (refer to the views be ow).
DISASSEMBLY - All threads are right hand. Refer to figure 2.
These procedures are for the installation of repair kit parts. DisĆ
connect air supply and relieve all system pressure prior to servicĆ
ing. Carefu y remove the parts, inspect parts for damage, nicks or
excessive wear and determine if any parts wi need rep acement.
Fo ow the three disassemb y steps in the detai views be ow and p ace
the pump on a c ean bench.
1. Remove (1) bo ts. Remove (18) packing, (17) bushing and (16) O"
ring.
2. Remove (36) adapter, re easing (10) muff er.
3. Grasp the (11) cy inder and remove the (20, 14) piston assemb y.
4. Remove (15) ower cap and (3) track gasket. Remove (12) retaining
ring and (48) washer, then pu (14) piston off (20) piston rod.
5. Remove (2) cap and (3) track gasket. Push on the arge o.d. end of
the (7) spoo to remove the (4) s eeve. Grab the nose of (7) spoo
and pu out. Repeat for other s eeve and spoo .
REASSEMBLY - Thoroughly clean and lubricate all seals and
bores with Shell Darina EP" 2 upon assembly. Replace all soft
parts with new ones included in the repair kit.
Note: Refer to the i ustration (figure 2) for U" cup ip sea direction.
1. Rep ace the sea s on both the (7) spoo s and (4) s eeves.
2. Locate the va ve chamber on the (11) cy inder where the 3/8'' dia.
ho e is ocated and insta one of the (4) s eeves. Insert the (7) spoo
from the opposite end. Next, insta the remaining s eeve and spoo .
3. Rep ace the (3) track gasket and insta (2) cap.
4. Rep ace the (13) piston U" cups (refer to figure 2 for proper orientaĆ
tion). Rep ace the (19) O" ring and assemb e (14) piston to (20) pisĆ
ton rod and retain with (48) washer and (12) retaining ring.
5. Insta the (20, 14) piston assemb y using great care to co apse the
outer ip of the second U" cup, a owing it to s ip into the cy inder.
6. Rep ace the (3) track gasket and insta the (15) cap. Insta the (16)
O" ring onto the piston rod, rep ace (17) bushing and (18) packing.
7. Rep ace the (25) O" ring and reĆattach the (24) inner check.
8. S ide the pump assemb y back into the (26) base / ower pump secĆ
tion. Press the sections together and a ign the air in et and pump
out et as required and rep ace the four (1) bo ts and (27) nuts (tightĆ
en to 9 Nm (79.7 in. bs).
TROUBLE SHOOTING
If the pump will not cycle or will not deliver material.
•Be certain to check for nonĆpump prob ems inc uding kinked, reĆ
strictive or p ugged in et / out et hose or dispensing device. DepresĆ
surize the pump system and c ean out any obstructions in the in et /
out et materia ines.
•Check a sea s, inc uding track gaskets.
•Check direction of U" cup ips.
C) Un ock the (24) inner
check from the piston rod.
FIGURE 5
FIGURE 4
B) Grasp the ower motor
cap and pu out the motor
and upper section of the
ower section.
PUMP DISASSEMBLY DETAIL
FIGURE 3
A) Remove the four
nuts from the base of
the Air Motor.
PN 97999Ć865