67317-X
OPERATOR’S MANUAL
INCLUDING: SERVICE KIT, TROUBLESHOOTING, PARTS LIST, DISASSEMBLY & REASSEMBLY
67318-X
RELEASED:
REVISED:
(REV. J )
3-6-03
8-1 -11
TWO-BALL STYLE LOWER PUMP ENDS
STAINLESS STEEL
ALSO COVERS 637379-X 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.
SERVICE KITS
• Use only genuine AROR replacement parts to assure compatible
pressure rating and longest service life.
• 637379-X31 for general repair of 6731X-X31 lower pump ends.
GENERAL DESCRIPTION
WARNING DO NOT EXCEED MAXIMUM OPERATING PRES-
SURE AS INDICATED ON PUMP MODEL PLATE.
WARNING REFER TO GENERAL INFORMATION SHEET
FOR ADDITIONAL SAFETY PRECAUTIONS AND IMPORTANT
INFORMATION.
• This manual only 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.
- NM2202B-X-X Pump Model Operator’s Manual.
- General Information for Air Operated or Hydraulically Operated
Pumps.
= Lower Pump End Operator’s Manual.
- Air or Hydraulic Motor Operator’s Manual.
• Thetwo-balldesignprovidesforeasyprimingofthelowerfootvalve.
The double acting feature is standard in all ARO industrial pumps,
materialisdeliveredtothepumpdischargeoutletonboththeupand
down stroke.
Figure 1
LOWER PUMP END DESCRIPTION CHART
MAINTENANCE
6731 X - X 3 1
The air / hydraulic motor is completely separate from the lower pump
end. Thishelpstokeepthemotorfrombeingcontaminatedbythemate-
rial being pumped. Periodically, flush entire pump system with a lubri-
cant that is compatible with the material being pumped.
Provide a clean work surface to protect sensitive internal moving parts
fromcontamination fromdirt andforeign matterduringdisassemblyand
reassembly.
Before reassembling, lubricatepartsasrequired. Whenassembling“O”
rings, or parts adjacent to “O” rings, exercise care to prevent damage to
“O” rings and “O” ring groove surface.
Container Suitability
7
8
- 55 Gallon
- Universal (stub)
Packing Material
7
B
C
J
- PTFE (upper and lower)
- UHMW-PE (upper) / PTFE (lower)
- UHMW-PE (upper and lower)
- Polyurethane (upper) / UHMW-PE (lower)
Spring Arrangement
3
- No Spring
Plunger Type
1
- Standard (300 series stainless steel)
SERVICE KIT SELECTION
6731X - X 3 1
EXAMPLE: Lower Pump End # 67317-C31
Service Kit # 637379-C31
637379 - X 31
Packing
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
© 2010
CCN 15211485
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PARTS LIST
~ 1
4
3
2
Y
6 ,
7
9
8
10
12
~ 11
13
14 ,
~ 15
16
17
18 ,
19 ,
Y
21
Y
22
. TORQUE REQUIREMENTS ,
23 ,
NOTE: DO NOT OVERTIGHTEN COMPONENTS.
(6) 120 in. lbs (13.6 Nm) minimum.
(14), (18), (19), (23), (24) 60 - 70 ft lbs (81.3 - 94.9 Nm).
24 ,
LUBRICATION / SEALANTS
Y
Apply PTFE tape to threads.
~ Models 6731X-731, -B31, -C31: Lubricate seals and threads with Wet-Sol Plus.
~ Models6731X-J31:LubricatesealsandthreadswithISOviscositygrade32oil.
Figure 2
67317-X (en)
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PN 97999-1043
67317-X (en)
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