40
TROUBLESHOOTING GUIDE
Trouble Probable Cause Solution
Piston will not advance
or retract
Couplers are not securely attached
to the tool or pump
Check the coupler connections and
make certain that they are connected.
Coupler is defective Replace any defective coupler.
Defective remote control switch
Replace the switch and/or control
pendent.
Dirt in the direction-control valve of
the pump unit
Disassemble the pump and clean the
direction-control valve.
Piston will not retract
Hose connections reversed
Make certain the advance on the pump
is connected to the advance on the tool
and retract on the pump is connected to
the retract on the tool.
Retract hose not connected Connect the retract hose securely.
Retract pin and/or spring broken Replace the broken pin and/or spring.
Cylinder will not build
up pressure
Piston seal and/or end plug seal
leaking
Replace any defective o-rings.
Retaining screws sheared Replace any broken screws.
Coupler is defective Replace any defective coupler.
Ratchet will not turn
Grease or dirt build up in the teeth
of the ratchet link
and drive segment
Disassemble the ratchet and clean the
grease or dirt out of the teeth.
Worn or broken teeth on ratchet
and/or drive segment
Replace any worn or damaged parts.
Tool tightens immedi-
ately when turned on
Hose connections are reversed
Depress the advance button to release
the tool; shut the pump off in the
advance position and reverse
the hose connection.
Pump will not build up
pressure
Defective relief valve
Inspect, adjust or replace
the relief valve.
Air supply too low or air hose too
small
Make certain the air supply and hose
size comply with the pump manual
recommendations.
Electric power source is too low
Make certain the amperage, voltage
and any extension cord size comply
with the pump manual requirements.
Defective gauge Replace the gauge.
Low oil level Check and ll the pump reservoir.
Clogged lter
Inspect, clean and/or replace
the pump lter.
Pressure reading
erratic
Defective gauge Replace the gauge.
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