Ingersoll-Rand 6737X-XXX User Manual
OPERATOR’S MANUAL 6737X-XXX
INCLUDING: SERVICE KITS, TROUBLESHOOTING, PARTS LIST,
DISASSEMBLY & REASSEMBLY.
TWO-BALL STYLE
LOWER PUMP ENDS
Also covers 637444-XXX service kits
READ THIS MANUAL CAREFULLY BEFORE INSTALLING,
OPERATING OR SERVICING THIS EQUIPMENT.
It is the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
The original language of this manual is English.
SERVICE KITS
Use only genuine ARO® replacement parts to assure compatible
pressure rating and longest service life.
637444-XXX for general repair of 6737X-XXX lower pump ends.
GENERAL DESCRIPTION
RELEASED: 2-2-09
REVISED: 6-3-10
(REV. 02)
WARNING
SURE AS INDICATED ON PUMP MODEL PLATE.
WARNING
ADDITIONAL SAFETY PRECAUTIONS AND IMPORTANT INFORMATION.
This manual covers the lower pump section. It is one of four
documents which support an ARO pump. Replacement copies
of these forms are available upon request.
The two-ball design provides better priming of the lower foot
valve. The double acting feature is standard in all ARO industrial pumps. Material is delivered to the pump discharge outlet
on both the up and down stroke.
DO NOT EXCEED MAXIMUM OPERATING PRES-
REFER TO GENERAL INFORMATION SHEET FOR
NMXXXXX-XX-XXX Pump Model Operator’s Manual.
General Information for Air / Hydraulically Operated Piston
Pumps.
Lower Pump End Operator’s Manual.
Air / Hydraulic Motor Operator’s Manual.
MAINTENANCE
The air / hydraulic motor is completely separate from the lower
pump end. This helps to keep the motor from being contaminated
by the material being pumped. Periodically, flush entire pump
system with a solvent that is compatible with the material being
pumped.
Keep solvent cup lled with this compatible solvent. This will keep
the material from drying on the piston rod, which would drag
through the packings, ruin them and eventually scour the piston
rod.
Provide a clean work surface to protect sensitive internal moving
parts from contamination from dirt and foreign matter during disassembly and reassembly.
Before reassembling, lubricate parts as required. When assembling
“O” rings, or parts adjacent to “O” rings, exercise care to prevent
damage to “O” rings and “O” ring groove surface.
Figure 1
LOWER PUMP END DESCRIPTION CHART
6737 X - X X X
Pump Material
1 - 400 series stainless steel
2 - 300 series stainless steel
Packing Material
C - UHMW-PE (upper and lower)
K - Carbon and Graphite lled PTFE with nitrile ener-
gizer (upper and lower)
L - Mineral lled PTFE (upper and lower)
P - UHMW-PE / Mineral lled PTFE staggered (upper)
UHMW-PE (lower)
R - Mineral lled PTFE / UHMW-PE staggered (upper)
Mineral lled PTFE (lower)
Spring Arrangement
3 - No spring
6 - Wave spring
8 - No spring with alternate solvent cup
C - No spring with alternate seat material
D - Wave spring with alternate seat material
E - Wave spring with alternate solvent cup
F - No spring with alternate seat material and alternate
solvent cup
G - Wave spring with alternate seat material and alternate
solvent cup
Plunger Type
D - Hardened stainless steel with hard chrome plating
F - Stainless steel with hard chrome plating
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
www.ingersollrandproducts.com
© 2010
CCN 15262132
Service Kit Selection
Example: Lower Pump End # 67371-C6D
Service Kit # 637444-C6D
6737X - X X X
637444 - X X D
Packing Spring
PARTS LIST
Item Description
Solvent Cup
1
(models 6737X-X3X, -X6X, -XCX, -XDX)
(models 6737X-X8X, -XEX, -XFX, -XGX)
6 Outlet Body (1) 96436 [SS]
“O” Ring
8
(models 6737X-KXX)
(models 6737X-CXX, -LXX, -PXX, -RXX)
Tub e
9
10 Connecting Rod (3) 79156 [SS]
12 Nut
15 Inlet Body (1) 96437 [C]
19 Ball Guide (4) 96435 [SS]
20 Ball Stop (1) 96434 [SS]
21 Ball
22 Ball Seat (1) 96433 [SS]
23 “O” Ring
24 Plate (1) 96438 [C]
Plunger
26
Ball
27
Ball Seat
28
[B] = Nitrile [SS] = Stainless Steel
[C] = Carbon Steel [T] = PTFE
[Ny] = Nylon [TC] = Tungsten Carbide
[PSH] = Hard Chrome Plated Hardened Stainless Steel [UH] = UHMW-PE
[PSS] = Hard Chrome Plated Stainless Steel [V] = Viton®
[SH] = Hardened Stainless Steel
(size)
(0.103” x 3.365” o.d.)
(models 67371-XXX)
(models 67372-XXX)
(1” - 14)
(3.000” dia.)
(3/16” x 5” o.d.)
(models 6737X-XXD)
(models 6737X-XXF)
(1.000” dia.)(models 67371-XXX)
(models 67372-XXX)
(models 67371-X3X, -X6X, -X8X, -XEX)
(models 67372-X3X, -X6X, -X8X, -XEX)
(models 6737X-XCX, -XDX, -XFX, -XGX)
MATERIAL CODE
(Qty) Part No. Mtl
(1) 67369 [SS]
(1) 66730 [SS]
(2) 93333 [B]
(2) 92619 [T]
(1) 92599-1 [SH]
(1) 79164 [SS]
(3) 79184 [SS]
(1) 96783 [SH]
(2) Y327-350 [V]
(1) 67204 [PSH]
(1) 67205 [PSS]
(1) Y16-132 [SH]
(1) 90948 [SS]
(1) 92610 [SH]
(1) 77430 [SS]
(1) 95770 [TC]
Item Description
29 Gasket (1) 92612 [SS]
36 Seat Body (1) 93234 [SS]
40 Retaining Ring (1) 93225 [SS]
44 Wavy Spring Washer
-XDX, -XEX, -XGX)
45 Retaining Washer (1) 93041 [Ny]
49 Cap Screw
Washer
50
“V” Packing
51
“V” Packing
52
53 Male Packing Washer
-LXX, -PXX, -RXX)
62 Cap Screw
“W” Packing
71
Wiper
72
75 Packing Set
Packing Set
76
88 Valve (1) 62113 [SS]
Items included in Service Kit 637444-XXD
cup.
2. Assemble (45) retaining washer into (6) outlet body and screw
(1) solvent cup and components into (6) outlet body. NOTE: Do
not tighten.
3. Lubricate and assemble (8) “O” ring to groove in (6) outlet body.
4. Lubricate (26) plunger and upper packings with Wet-Sol “Plus”.
Carefully slide (6) outlet body, (1) solvent cup and components
LOWER PUMP DISASSEMBLY
over the top of (26) plunger. Retain (6) outlet body in a bench
vise and tighten (1) solvent cup. Carefully lay assembled parts
NOTE: All threads are right hand.
Unscrew and remove three (12) nuts from (10) connecting rods.
1.
Remove (15) inlet body and components from (9) tube.
2.
Remove three (62) cap screws, releasing (24) plate, (22) ball seat
3.
and components.
Remove two (49) cap screws and (20) ball stop, releasing (21) ball.
4.
Pull (9) tube and (26) plunger from (6) outlet body.
5.
Push (26) and components out lower end of (9) tube.
6.
Unscrew (36) seat body and remove (29) gasket, (27) ball and
7.
(28) ball seat. NOTE: (36) seat body has four 1/4” dia. x 3/16”
deep holes. Use a spanner wrench to loosen.
Remove (40) retaining ring from (36) seat body.
8.
Remove (8) “O” ring from (6) outlet body.
9.
Unscrew (1) solvent cup from (6) outlet body. NOTE: (1) solvent
10.
cup has six 3/8” dia. x 5/16” deep holes. Use a rod or spanner
wrench to loosen.
Remove (45) retaining washer, releasing (75) packing set or (44)
11.
wavy spring washer, (53) male packing washer, (51 and 52) “V”
packings and (50) washer.
aside for future assembly.
5. Assemble (76) packing set or (72) wiper and (71) “W” packing
onto (36) seat body.
6. Assemble (40) retaining ring on (36) seat body and lay aside for
future assembly.
7. Lubricate and assemble (8) “O” ring to groove in (15) inlet body.
8. Assemble four (19) ball guides to (22) ball seat.
9. Assemble (21) ball and (20) ball stop, retaining with two (49)
cap screws.
10. Assemble (23) “O” rings to grooves in (22) ball seat and assemble (22) ball seat into (15) inlet body.
11. Assemble (24) plate to (15) inlet body, securing with three (62)
cap screws. NOTE: Tighten (62) cap screws to 295 - 305 ft lbs
(400.0 - 413.5 Nm).
12. Place (26) plunger, (6) outlet body and (1) solvent cup upside
down in a vise, clamping on ats of (26) plunger at (solvent cup
end. NOTE: (26) plunger to be vertical.
13. Place (27) ball into end of (26) plunger. Place (29) gasket on
sealing surface above ball guide. Apply Loctite 242 to threads
of (26) plunger. Place (28) ball seat, bevel side toward (27) ball,
LOWER PUMP REASSEMBLY
into (36) seat body and assemble (36) and components to (26)
plunger. NOTE: Tighten (36) seat body to 100 - 110 ft lbs (135.6
NOTE: All threads are right hand.
1.
Models 6737X-CXX, -LXX, -PXX, -RXX: Assemble (50) washer,
(52 and 51) “V” packings, (53) male packing washer and (44)
wavy spring washer into (1) solvent cup.
- 149.1 Nm).
14. The lip of (72) wiper is to be rolled inward using a at surfacxe
with no sharp edges (such as a steel dowel) to prevent damage to wiper, plus easier assembly. This process may have to be
Models 6737X-KXX: Assemble (75) packing set into (1) solvent
Page 2 of 4 6737X-XXX (en)
(size)
(models 6737X-X6X,
(1/4” - 20 x 1”)
(models 6737X-CXX, -PXX)
(models 6737X-LXX, -RXX)
(models 6737X-CXX, -PXX)
(models 6737X-LXX, -RXX)
(models 6737X-CXX, -RXX)
(models 6737X-LXX, -PXX)
(models 6737X-CXX,
(1” - 14 x 3”)
(models 6737X-CXX, -PXX)
(models 6737X-LXX, -RXX)
(models 6737X-CXX, -PXX)
(models 6737X-LXX, -RXX)
(models 6737X-KXX)
(models 6737X-KXX)
(Qty) Part No. Mtl
(1) 79175 [SH]
(2) Y6-45-T [SS]
(1) 93756-4 [UH]
(1) 93756-5 [T]
(2) 93683-4 [UH]
(2) 93683-5 [T]
(2) 93683-4 [UH]
(2) 93683-5 [T]
(1) 92602 [SS]
(3) 96447 [SS]
(1) 93758-4 [UH]
(1) 93758-5 [T]
(1) 93757-4 [UH]
(1) 93757-5 [T]
(1) 93568-1 [T]
(1) 93567-1 [T]
(continued on page 4)
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