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INGERSOLL RAND COMPANY LTD
P.O. BOX 151
ONE ARO CENTER
BRYAN, OHIO 43506-0151
(800) 276-4658
FAX (800) 266-7016
© 2009 CCN 81376725
uids.ingersollrand.com
OPERATOR’S MANUAL 662420-B
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, PARTS, TROUBLESHOOTING.
INCLUDE MANUALS: 6544X-X Air Motor (pn 97999-64) & S-632 General Information Manual (pn 97999-624).
RELEASED: 6-30-70
REVISED: 3-12-09
(REV. N)
662420-B
Basic Oil Pump
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.
4-1/4” AIR MOTOR
9:1 RATIO
4” STROKE
PUMP DATAPUMP DATASERVICE KITS
Use only genuine ARO® replacement parts to assure compat-
ible pressure rating and longest service life.
61053 for repair of air motor and lower pump end.
61268 for repair of 65441-B air motor.
65823 packing kit assembly.
SPECIFICATIONS
Model Series
(refer to option chart)
. . . . . . . . . . . 662420-B
Pump Type . . . . . . . . . . . . . . . . . . . . . . . . . Air Operated, Two-Ball Pump
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9:1
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65441-B
Motor Repair Kit . . . . . . . . . . . . . . . . . . . . . . . 61268
Motor Diameter . . . . . . . . . . . . . . . . . . . . . . . 4-1/4” (10.8 cm)
Stroke (double acting) . . . . . . . . . . . . . . . . . 4” (10.2 cm)
Air Inlet (female) . . . . . . . . . . . . . . . . . . . . . . . 1/2 - 14 NPTF - 1
Air Exhaust (female). . . . . . . . . . . . . . . . . . . . 1-1/4 - 11-1/2 NPTF - 1
Material Outlet (female) . . . . . . . . . . . . . . . 3/4 - 14 NPTF
Lower Pump End . . . . . . . . . . . . . . . . . . . . . . . . . 60873
Material Inlet (female) . . . . . . . . . . . . . . . . . 2 - 11-1/2 NPT
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . see gure 1
PUMP PERFORMANCE
Air Inlet Pressure Range . . . . . . . . . . . 0 - 150 p.s.i.g. (0 - 10.3 bar)
Fluid Pressure Range . . . . . . . . . . . . . . 0 - 1350 p.s.i.g. (0 - 93.1 bar)
Maximum Rec'd Cycles / Minute . . . . . . . . . 75
Displacement In. Per Cycle . . . . . . . . . . . . . . 12.0
Volume / Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.65 oz. (196.8 ml)
Cycles Per Gallon . . . . . . . . . . . . . . . . . . . . . . . . 19.2
Maximum Working Flow Rate . . . . . . . . . . . . 3.9 g.p.m. (14.8 l.p.m.)
Noise Level @ 60 p.s.i. - 40 c.p.m.
. . . . . . 81.8 db(A)
Tested with 91790 silencer installed.
The pump sound pressure level has been updated to an Equivalent Continuous
Sound Level (LAeq) to meet the intent of ANSI S1.13-1971, CAGI-PNEUROP S5.1
using four microphone locations.
GENERAL DESCRIPTION
The 9:1 ratio is an expression of the relationship between the e ec-
tive air motor area and the e ective lower pump area. When 150
p.s.i. (10.3 bar) of air pressure is supplied to the air motor, the lower
pump end will develop a maximum 1350 p.s.i. (93.1 bar) of fluid
pressure (at no ow). As the uid control is opened, the ow rate
will increase as the air motor cycle rate increases to keep up with
demand.
Figure 1
MODELS 662420-B
NOTE: Dimensions are shown in inches and (mm) and are supplied for reference only.
Air Inlet (female)
1/2 - 14 NPTF - 1
Material Outlet (female)
3/4 - 14 NPTF
65441-B Air Motor
(see manual 6544X-X)
Air Exhaust (female)
1-1/4 - 11-1/2 NPTF - 1
Model “A”
(mm)
“B”
(mm)
662420-B 29”
(736.4)
15-1/8"
(383.9)
IMPORTANT
This is one of three documents which support the pump. Re-
placement copies of these forms are available upon request.
662420-B Model Operator’s Manual (pn 97999-108)
S-632 General Information - Air / Hydraulic Operated Piston
Pumps (pn 97999-624)
6544X-X Air Motor Operator’s Manual (pn 97999-64)
“A”
“B”
Material Inlet (female)
2 - 11-1/2 NPT