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OPERATOR’S MANUAL
66172-X
RELEASED: 11-4-91
REVISED: 6-2-10
(REV.
F)
INCLUDING: SERVICE KIT, TROUBLESHOOTING, PARTS LIST, DISASSEMBLY & REASSEMBLY
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
• Use only genuine ARO replacement parts to assure compatible
pressure rating and longest service life.
• 637012-X for general repair of 66172-X lower pump end.
• 637013 for repair of lower ball and seat.
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.
• Thismanualonlycoversthelowerpumpsection,itisone offourdoc-
uments whichsupport an ARO pump. Replacementcopies ofthese
forms are available upon request.
- 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,
materialisdelivered tothepumpdischarge outletonboththe upand
down stroke.
MAINTENANCE
The air / hydraulic motor is completely separate from the lower pump end.
This helpsto keep the motor frombeing contaminated by the m aterial being
pumped. Periodically, flush entire pump system with a s olvent that is com-
patible with the material being pumped.
Keep solventcup filledwith thiscompatible solvent.This willkeep mate-
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
from contaminationfrom dirtandforeign matter duringdisassemblyand
reassembly.
Before reassembling,lubricate partsas required.When assembling“O”
rings, or partsadjacent to “O” rings, exercise care toprevent damage to
“O” rings and “O” ring groove surface.
LOWER PUMP END DESCRIPTION CHART
66172 - X
PACKING MATERIAL
0 Thiokol Leather (upper and lower)
1 Glass Filled PTFE (upper and lower)
2 Glass Filled PTFE / Leather staggered (upper and lower)
3 UHMW-PE (upper & lower)
66172 - X
637012 - X
Packing
SERVICE KIT SELECTION
EXAMPLE:Lower Pump End # 66172-1
Service Kit # 637012-1
TROUBLE SHOOTING
• No material at outlet (pump continually cycles). Check material
supply,disconnect or s hutoff t heair supplyand replenish thematerial,
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.
• Materialonone strokeonly(fastupstroke). Checkforworn ordam-
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 plungerrod. Relieve the pressurein the pump andtight-
en the solvent cup untilleakage discontinues. If this proceduredoes
not aid in stopping the leakage problem, the upper packings may be
worn (see lower pump disassembly). Replace the packings as nec-
essary.
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276
© 2010
www.ingersollrandproducts.com
CCN 99442972