OPERATOR’S MANUAL
RELEASED: 8--1--95
REVISED: 6--4--10
(REV.C)
4--1/4”AIR MOTOR
46:1 RATIO
0 --6900 PSI RANGE
INCLUDEMANUAL: S--633 GENERAL INFORMATION(PN 97999--625)
INCLUDING:SPECIFICATIONS, SERVICE KITS, PARTS, TROUBLESHOOTING

BASIC PUMP

CHOP--CHECKTYPE

READ THIS MANUAL CAREFULLYBEFORE INSTALLING,
OPERATINGO RSERVICING THIS EQUIPMENT.
Itis the responsibility of the employer to place this information in the hands of the operator. Keep for future reference.
65875--XC
SERVICE KITS
•Useonly genuine ARORreplacement parts to assure compatible
pressurerating and longest service life.
•61268for repair of Air Motor section.
Service Note: The Air Motor Service/Parts Manual is not shipped
withthe pump but it is included with each Service Kit. If this Service/
PartsInformationis needed, request the Air Motor Operator’s Manu-
alfrom ARO. (Manual 6544X --X,PN 97999--64).
•637056for repair of Lower Pump section (Leather Packings).
•637057for repair of Lower Pump section (PTFE Packings).
•637280 for repair of Lower Pump section (UHMW-PE Pack-
ings).
SPECIFICATIONS
ModelSeries 66875--XC..............
Type Air Operated, Basic Pump....................
Chop--Check
Ratio 46:1....................
AirMotor Diameter 4--1/4’’(108 mm).........
Stroke 4’’(102 mm)..................
AirInlet 1/2” --14 NPTF -- 1 (f).................
MaterialInlet Immersedor Follower Plate.............
MaterialOutlet 1/2” --14 NPTF -- 1 (f)...........
PumpConstruction CarbonSteel.......
DimensionalData SeeFig.1..........
PERFORMANCE
AirInlet Pressure Range 0 --150 PSI (0 -- 10.3 bar).....
FluidPressure Range 0-- 6900 PSI (0 --475 bar).......
DisplacementIn3Per Cycle 2.5...
CyclesPer Gallon 92.8..........
NoiseLevel* --81.8 db(A) @ 60 psi, 40 cycles per minute
*Thepump sound pressure level has been updated to an Equivalent ContinuousSound
Level(LAeq) to meet the intent of ANSI S1. 13--1971, CAGI--PNEUROPS5.1 using four
microphonelocations.
GENERAL DESCRIPTION
This model is designed for delivery of heavy viscosity fluids such as
grease. Material dispensing accessories and supply lines and fittings
mustbe capable of withstanding pressures developed by pump.
OPERATINGAND SAFETY PRECAUTIONS
WARNING Readthe General Information Manual for operat-
ingand safety precautions and important information.
PUMP DATA
FIGURE 1
AirInlet (female)
1/2” --14 NPTF
MaterialOutlet (female)
1/2” --14 NPTF
NOTE:Dimensions are shown in inches and (mm), supplied for reference only
andare typically rounded up to the nearest 1/16 inch.
AirMotor
65445--B
Mat’l Inlet
(Immersed)
65873--X
LowerPump
3511/32”
(897.7mm)
2115/32”
(545.3mm)
SeeFig. 2
65875-XC BASIC PUMP
65874 Adapter Kit
IMPORTANT
Thisis one of two documents which support the pump.
Replacementcopies of these forms are available upon request.
=65875-XC MODELOPERATOR’S MANUAL
-S-633 GENERALINFORMATION LUBRICATION PISTON PUMPS
INGERSOLL RAND COMPANY LTD
209 NORTH MAIN STREET – BRYAN, OHIO 43506
(800) 495-0276 FAX(800) 892-6276 © 2010
www.ingersollrandproducts.com