Remove material from orifice.
9
Pump does not operate
Inadequate air supply pressure or
Increase or clear air supply
(1)
restricted air line
Ensure air is on and valves are open
Clogged lines, hoses, valves, etc.
Open; clear
(1)
Damaged air motor
Service / replace air motor
Air motor is not tripping over
Air motor seals are worn/damaged
Service / replace air motor
Air is leaking from exhaust
Air motor seals are worn/damaged
Service / replace air motor
Grease is leaking from the exhaust
Adapter seal (4) is worn/damaged
Replace
Erratic pump operation
Air entering suction line
Check for loose connections
Grease level too low
Refill, reprime or flush
Air motor icing
Run pump at lower pressure; run at lower
cycles per minute; clean muffler (60)
Pump runs continuously
Empty fluid supply
Refill, reprime or flush
Blockage in pump tube or foot seal (13)
Remove pump tube, clear blockage
High pressure seal (24) is worn or damaged
Replace
Fluid output on one stroke only or High pressure ball (22) is stuck in grease
continues to operate when
piston (23) or one or both are damaged
Replace ball and reseat
dispensing valve is closed
Pump operates, but pump output
Inadequate air supply pressure or
Increase air supply; increase air line supply
on both strokes is low
restricted air line
size
Closed or clogged solenoid valve, meter,
Clear
(1)
dispensing valve, etc.
Air inlet strainer/filter clogged
Clear
(1)
CAUTION:
Before servicing, reduce
fluid supply pressure to zero.
Troubleshooting Guide
Trouble
Probable Cause
Corrective Action
(1) Follow the
Pressure Relief Procedure
(pages 2 and 8)
and disconnect the fluid line. If the pump starts when the air is turned on
again, the line, etc. is clogged.
NOTE:
Check all other possible causes
before disassembling pump.
!
Orifice in lower intake disk (item 28) plugged.
