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OPERAT
OR’S MANUAL
INCLUDING:ĂSERVICE KITS, GENERAL DESCRIPTION & TROUBLESHOOTING
BASIC PUMP
READ THIS MANUAL CAREFULL
Y BEFORE INST
ALLING,
OPERA
TING OR SER
VICING THIS EQUIPMENT
.
3” AIR MOTOR
50:1 RATIO
2 1/4” STROKE
ALSOINCLUDEMANUALS:6641X-XAIRMOTORMANUAL,FORM3637-2GENERALINĆ
FORMATIONSHEET.
35
LB DRUM
72633–D
RELEASED:
6–21–95
(REV
. A) IPP/PSE
72633–1–D
SERVICE KITS
• Use only genuine AROR replacement parts to assure compatible
pressure rating and longest service life.
• 637066-B for repair of Air Motor section.
• Order individual parts separately for repair of Lower Pump End.
GENERAL
DESCRIPTION
This model is designed for delivery of heavy viscosity fluids such as
chassis lubrication fluids. Material dispensing accessories and supply
lines and fittingsmust be capable of withstandingpressuresdeveloped
by pump.
• The ARO50:1ratio basicpump assembly consistsofa 3" airmotor
and lower pump end.
RATIOxREGULATEDAIRPRESSURETOAIR MOTOR=MAXIMUMFLUID
PRESSURE.
• The 50:1 ratio is an expression of the relationship between the air
motor area and the lowerpump end area. When 150p.s.i. (10 bar)
air pressure is supplied to the air motor, the lower pump end will
develop a maximum of 7,500 p.s.i. (517 bar) 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 the demand.
PUMP
DA
TA
Air
Motor
FIGURE 1
66410
1/2
NPT
Mat’l Outlet
Mat’l Inlet
Lower Pump
Model No.
``A" ``B"
72633-D
27.3"
``A"
``B"
19.1"
(693.4 mm)
(485.1 mm)
72633-1-D
44.5" 36.2"
(924.7 mm)
(1130.2mm)
OPERATING
AND SAFETY PRECAUTIONS
• HEEDALL WARNINGS.
• DONOTEXCEEDMAXIMUMWORKINGPRESSUREOF7,500PSI(517
BAR) AT 150PSI (10BAR) AIRINLETPRESSURE.
WARNING : HIGH PRESSURE DEVICE. Improper usage of
this equipment could result in serious injury. The possibility
of injectioninto thefleshis apotentialhazard.Never allowany
part of the human body to come in frontof or in direct contact
with the material outlet. An injection injury can be serious. If
injection should occur, contact a qualified physician immediĆ
ately for treatment.
• COMPONENTRUPTURE.Thispumpiscapableofproducinghighmaterial
pressure asstatedon pumpmodel plate.
• Be sure material hoses and othercomponents are able to withstand fluid
pressuresdeveloped bythis pump.
• Donotoperatepumpcontinuouslyatspeedsinexcessof75cyclesperminĆ
ute.
WARNING : PREVENT STATICSPARKING. If static sparking
occurs, fire or explosion could result. Pump, dispensing
valve and containers must be grounded when handling inĆ
flammable fluids such as petroleum products, paints, lacĆ
quers, etc. and wherever discharge of static electricity is a
hazard.
• Usegroundedhoses(staticwire)andbesuretheobjectisgroundedifitcan
producea staticcharge.
• Use grounded hoses (static wire) and be sure the object is
grounded if it can produce a static charge.
• Disconnectair linefrompumpair motorwhensystemsits idlefor longperiĆ
odsof time.
THE
ARO CORPORA
TION
D
ONE ARO CENTER
D
BR
Y
AN, OHIO 43506–0151
E1995
THE ARO CORPORA
TION
D PRINTED IN U.S.A.
&
(419) 636–4242
D
F
AX (419) 636–21
15