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650923-X-B
PUMP OPTION DESCRIPTION CHART
650923--X
PACKING MATERIAL
PLUNGER TYPE
SPRING ARRANGEMENT
PACKING MATERIAL (PACKINGSAREUPPERANDLOWERUNLESSNOTED)
7 GLASS FILLEDPTFE (UPPER) P UHMW--PE/PTFE STAG’D (UPPER)
VIRGINPTFE (LOWER
) UHMW--P E (LOWER)
C UHMW--PE R PTFE/UHMW--PE STAG’D (UPPER)
F UHMW--PE/LEATHER STAG’D (UPPER) PTFE (LOWER)
UHMW--PE (LOWER)
SPRING ARRANGEMENT
4
MULTIPLE WAVESPRING
PLUNGER TYPE
3
HD SSW/HD CHROMEPLATING
43--B
GENERAL DESCRIPTION
WARNING
HAZARDOUS PRESSURE. Do not exceed maxi-
mum operating pressure of 373 psi (25.7 bar) at 1200 psi (83
bar) inlet hydraulic pressure.
PUMP RATIO X MAXIMUM PUMP
INLET PRESSURE TO PUMP MOTOR
= FLUID PRESSURE
Pump ratiois anexpressionof therelationship betweenthe pumpmotorarea andthe
lowerpumpend area.EXAMPLE:When150p.s.i. (10.3bar)inletpressureissupplied
tothemotorofa5:1ratiopumpitwilldevelopamaximumof750p.s.i.(52bar)fluidpres-
sure(atnoflow)--asthefluidcontrolisopened,theflowratewillincreaseasthemotor
cycle rate increases to keep upwith the demand.
WARNING
Refer to general information sheet for additional
safety precautions and important information.
• The Four--Ball pumps are primarily designed for the high volume
transfer oflight and mediumviscosity fluidscompatible withcarbon
steel. The lower pumpis designed for easypriming and the double
actingfeatureisstandardinallAROindustrialpumps.Materialisde-
liveredtothepumpdischargeoutletonboththeupanddownstroke.
• The motor isconnected tothe lower pumpend bya spacer section.
This allows for lubrication of the upper packing gland andprevents
motorcontaminationbecause ofnormalwearand eventualleakage
through thematerial packing gland.Be surethe solvent cupis ade-
quately filledwithlubricant toprotectthe upperpackings andinsure
longest service life.
TROUBLE SHOOTING
Pump problems can occur in either the Hydraulic Motor Section or the
Lower PumpEnd Section,use these basicguidelines tohelpdetermine
which section is affected.
If the pump will not cycle.
• Be certain to first check for non--pump problems including kinked,
restrictiveorpluggedinlet/outlethoseordispensingdevice.Depres-
surize the pump systemand clean outany obstructions in theinlet/
outlet material lines.
• Refer tothe motormanual fortrouble shooting if thepump doesnot
cycle and/or hydraulic fluid leaks from the hydraulic motor.
If the pump cycles but does not deliver material.
• Refer to the lower pump end manual for further trouble shooting.
PUMP CONNECTION -- UPPER / LOWER
NOTE: All threads are right hand.
1. Lay the pump assembly on a workbench.
2. Remove the three screws and washersfrom the three spacer rods
(see figure 1).
3. Pull thehydraulic motorfrom thelower pump enduntil motorpiston
rod is in the‘‘down” positionand lowerpump endrodis in ‘‘up” posi-
tion.
4. Usinge--ringpliers,slidetheretainingringupfarenoughtoallowthe
sleeve to moveupward and release thetwo connectors (seefigure
2).
Lower Pump
Piston Rod
Pump Motor
Piston Rod
Retaining Ring
90102
Sleeve
90109
Connector
90096 (2)
PUMP CONNECTOR DETAIL
FIGURE 2
Adapter
93344--1
APPLY LOCTITE
271, TORQUE TO
50 -- 60 FT LBS.
REASSEMBLY
1. Align the pump motor with the lower pump end.
2. Installthetwoconnectorsandretainwiththesleeve,slidetheretain-
ing ring back into position.
3. Reinstall the spacer rods to the pump motor.
4. Bring the motor and lower pump together and retain with the three
screws and washers.
PN 97999-685