66172-X
OPERATOR’S MANUAL
INCLUDING: SERVICE KIT, TROUBLESHOOTING, PARTS LIST, DISASSEMBLY & REASSEMBLY
RELEASED: 11-4-91
REVISED:
6-2-10
(REV. F)
TWO-BALL STYLE
LOWER PUMP END
ALSO COVERS 637012-X & 637013 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
LOWER PUMP END DESCRIPTION CHART
• Use only genuine ARO replacement parts to assure compatible
pressure rating and longest service life.
66172 - X
PACKING MATERIAL
• 637012-X for general repair of 66172-X lower pump end.
• 637013 for repair of lower ball and seat.
0
1
2
3
Thiokol Leather (upper and lower)
Glass Filled PTFE (upper and lower)
Glass Filled PTFE / Leather staggered (upper and lower)
UHMW-PE (upper & lower)
GENERAL DESCRIPTION
SERVICE KIT SELECTION
66172 - X
637012 - X
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.
EXAMPLE: Lower Pump End # 66172-1
Service Kit # 637012-1
Packing
TROUBLE SHOOTING
• Thismanualonlycoversthelowerpumpsection,itisoneoffourdoc-
uments which support an ARO pump. Replacement copies ofthese
forms are available upon request.
• No material at outlet (pump continually cycles). Check material
supply, disconnect or shut off the air supplyand replenish the material,
reconnect.
• Materialononestrokeonly(fastdownstroke).The(21)lowerball
may not be seating in the (22) seat (see lower pump disassembly).
Remove the ball from the seat, clean and inspect the ball and seat
area. If the ball or seat is damaged, replace.
• Materialononestrokeonly(fastupstroke).Checkforwornordam-
aged packings and seals. Replace the packings and seals as neces-
sary.
• Material leakage out of the solvent cup or material appears on
the pump plunger rod. Relieve the pressure in the pump and tight-
en the solvent cup until leakage discontinues. If this procedure does
not aid in stopping the leakage problem, the upper packings may be
worn (see lower pump disassembly). Replace the packings as nec-
essary.
- 650XXX-XXX-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
• The two-ball design provides better priming of the lower foot valve.
The double acting feature is standard in all ARO industrial pumps,
materialisdeliveredtothepumpdischargeoutletonboththeupand
down stroke.
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 com-
patible with the material being pumped.
Keep solvent cup filled withthiscompatiblesolvent. Thiswillkeepmate-
rial from drying on the piston rod, which would drag thru the packings,
ruin them and eventually scour the piston rod.
Provide a clean work surface to protect sensitive internal moving parts
fromcontaminationfromdirt andforeignmatterduringdisassemblyand
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.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
© 2010
CCN 99442972
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PARTS LIST
MATERIAL CODE
[Ca] = Carbide
[C] = Carbon Steel
[GFT] = Glass Filled PTFE
[L] = Leather
[SS] = Stainless Steel
[UH] = UHMW-PE
1
2
3
22
23
23
23
22
22
4
5
6
7
8
17
9
10
11
25
25
25
24
24
13
15
12
14
12
27
27
16
8
7
18
7
26
11
10
19
20
66172-X
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PN 97999-485
66172-X
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