OPERATOR’S MANUAL 650453-X
RELEASED: 10-24-92
REVISED: 1-6-03
(REV.G)
INCLUDING: OPERATION, INSTALLATION & MAINTENANCE
ALSO INCLUDE MANUALS: 6544X-X (PN 97999-64) AIR MOTOR & S-632 GENERAL INFORMATION
MANUAL (PN 97999-624)

650453-X

2-BALL BASIC PUMP
4-1/4” AIR MOTOR
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.

SERVICE KITS

•Use only genuine ARORreplacement parts to assure compatible
pressure rating and longest service life.
•61268 for repair of air motor section.
•637177 for repair of lower pump end of models 650453-5 and
650453-11.
•Order lower pump end service parts separately for models
650453-7, 650453-8, 650453-9 and 650453-10.

GENERAL DESCRIPTION

•TheARO 9:1 ratio basic pump assembly consists of a 4-1/4” airmo-
tor,spacer section and two-ball lower pump end. The 4-1/4” air mo-
tor is a reciprocating type with pneumatic control circuit and
reversing valve. No working springs or piston connected trip rods
are used to reverse the air motor piston.
SPACER SECTION
•Theair motor is connected to the lower pump end with a spacer tube
and solvent cup. This allows for lubrication of the upper packing
gland and to prevent air motor contamination because of normal
wear and eventual leakage through the material packing gland.
LOWER PUMP END
•Thetwo-ball design provides for easy priming of the lower foot valve
and the double acting feature is standard in all ARO industrial
pumps. Material is delivered to the pump discharge outlet on both
the up and down stroke.
RATIOXREGULATED AIR PRESSURE TO AIR MOTOR =MAXIMUM
FLUID PRESSURE.
•The9:1 ratio is on expression of the relationship between the air mo-
torarea and the lower pump end area. When 150 p.s.i. (10.3 bar) air
pressureis supplied to the air motor, the lower pump end will devel-
opa maximum of 1,350 p.s.i. (93.1 bar) fluid pressure (at no flow). As
thefluid control is opened, the flow rate will increase as the air motor
cycle rate increases to keep up with the demand.

OPERATING PRECAUTIONS

•DO NOT exceed maximum working pressure of 1,350 p.s.i. (93.1
bar) at 150 p.s.i. (10.3 bar) air inlet pressure. HEED ALL WARN-
INGS.
•WARNING: HIGH PRESSURE DEVICE. Improper usage of
thisequipment could result in serious injury. The possibility of injec-
tion into the flesh is a potential hazard. Never allow any part of the
humanbody to come in front of or in direct contactwith thematerial
outlet. An injection injury can be serious. If injection should occur,
contact a qualified physician immediately for treatment.
•COMPONENTRUPTURE. This pump is capable of producing high
material pressure as stated on pump model plate.
•Besure material hoses and other components are able to withstand
fluid pressures developed by this pump.

PUMP DATA

FIGURE 1
NOTE: Dimensions are shown in inches and (mm), supplied for referenceonly and are
typicallyrounded up to the nearest 1/16 inch.

MODELS 650453-X

Air Inlet (female)
1/2 - 14 N.P.T.F.- 1
65445-B Air Motor
(see6544X-X manual)
Material Outlet (female)
3/4 - 14 N.P.T.F.- 1
“A”
“B”
“C”
Model
Number
Packing
Material
Pump
Type
“A” “B” “C”
650453-5 PTFE 55 gal 59-1/4” 37-1/8” Immersed
650453-7 PTFE/Leather Stub 32-11/16” 10-9/16” 1-1/2” NPT
650453-8 UHMW-PE 55gal 59-1/4” 37-1/8” Immersed
650453-9 UH / Leather Stub 32-11/16” 10-9/16” 1-1/2” NPT
650453-10 UHMW-PE Stub 32-11/16” 10-9/16” 1-1/2”NPT
650453-11 PTFE Stub 32-11/16” 10-9/16” 1-1/2”NPT
www.ingersollrandproducts.com
E2010
(800) 495--0276DFAX (800) 892--6276
INGERSOLL RAND COMPANY
209 NORTHMAIN STREET --BRYAN, OHIO 43506
CCN 81496986