OPERATOR’S MANUAL
INCLUDE MANUALS: 6544X-X Air Motor (pn 97999-64) & S-632 General Information Manual (pn 97999-624).
662420-B
RELEASED:
REVISED:
(REV. N)
6-30-70
3-12-09
INCLUDING: SPECIFICATIONS, SERVICE KITS, GENERAL INFORMATION, PARTS, TROUBLESHOOTING.
4-1/4” AIR MOTOR
662420-B
Basic Oil Pump
9:1 RATIO
4” STROKE
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.
SERVICE KITS
PUMP DATA
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.
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MODELS 662420-B
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Air Exhaust (female)
1-1/4 - 11-1/2 NPTF - 1
65823 packing kit assembly.
SPECIFICATIONS
Air Inlet (female)
1/2 - 14 NPTF - 1
(refer to option chart)
Model Series
. . . . . . . . . . . 662420-B
Pump Type. . . . . . . . . . . . . . . . . . . . . . . . . Air Operated, Two-Ball Pump
Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9:1
Air Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65441-B
Motor Repair Kit. . . . . . . . . . . . . . . . . . . . . . . 61268
65441-B Air Motor
(see manual 6544X-X)
“A”
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 figure 1
Material Outlet (female)
3/4 - 14 NPTF
“B”
PUMP PERFORMANCE
Figure 1
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.3 Per Cycle . . . . . . . . . . . . . . 12.0
Material Inlet (female)
2 - 11-1/2 NPT
Volume / Cycle . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.65 oz. (196.8 ml)
Cycles Per Gallon . . . . . . . . . . . . . . . . . . . . . . . . 19.2
NOTE: Dimensions are shown in inches and (mm) and are supplied for reference only.
Maximum Working Flow Rate. . . . . . . . . . . . 3.9 g.p.m. (14.8 l.p.m.)
(mm)
(736.4)
(mm)
Model
662420-B
“A”
29”
“B”
Noise Level @ 60 p.s.i. - 40 c.p.m. . . . . . . 81.8 db(A)
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(383.9)
15-1/8"
Tested with 91790 silencer installed.
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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.
IMPORTANT
This is one of three documents which support the pump. Re-
placement copies of these forms are available upon request.
GENERAL DESCRIPTION
662420-B Model Operator’s Manual (pn 97999-108)
S-632 General Information - Air / Hydraulic Operated Piston
Pumps (pn 97999-624)
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The 9:1 ratio is an expression of the relationship between the effec-
tive air motor area and the effective 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 flow). As the fluid control is opened, the flow rate
will increase as the air motor cycle rate increases to keep up with
demand.
6544X-X Air Motor Operator’s Manual (pn 97999-64)
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INGERSOLL RAND COMPANY LTD
P.O. BOX 151 ONE ARO CENTER BRYAN, OHIO 43506-0151
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© 2009
CCN 81376725
(800) 276-4658 FAX (800) 266-7016
fluids.ingersollrand.com
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PARTS LIST
ASSEMBLY TORQUE REQUIREMENTS
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NOTE: DO NOT OVERTIGHTEN FASTENERS.
(8) nut, 50 - 60 ft lbs (67.8 - 81.3 Nm).
(14) seat, 65 - 70 ft lbs (88.1 - 94.9 Nm).
(15) tube, 90 - 100 ft lbs (122.0 - 135.6 Nm).
(19) seat, 125 - 150 ft lbs (169.5 - 203.4 Nm).
LUBRICATION / SEALANTS
Apply Loctite 242 to threads.
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MATERIAL CODE
[B] = Nitrile
[Br] = Brass
[C] = Carbon steel
[Co] = Copper
[I]
= Iron
[U] = Urethane
[UH] = UHMW-PE
1
3
5
2
6
7
8
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9
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10
12
14
11
13
15
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16
18
20
17
19
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Figure 2
662420-B (en)
Page 3 of 4
PN 97999-108
Page 4 of 4
662420-B (en)
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