Hydraulic Torque Wrench Operation and Maintenance Manual
12
connected.
Coupler is defective
Replace any defective coupler
Defective remote control unit
Replace
the
button
and/or
control pendent
Dirt
in
the
direction-consol
valve o 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
retrace
hose
securely
Retrace
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-ring
Coupler is defective
Replace
Square Drive will not turn
Grease or dirt build up in the
teeth
of
the
ratchet
and
segment pawl
Disassemble the Ratchet and
clean the grease or dirt out of
the teeth
Worn
or
broken
teeth
on
ratchet and/or Segment Pawl
Replace any worn or damaged
parts
Pump
will
not build
up
pressure
Defective relief
valve
Inspect, adjust or replace the
relief valve
Electric power source is too
low
Make
certain
the
amperage,
voltage and any extension aord
size comply with the pump
manual requirements
Defective gauge
Replace the Gauge
Low oil level
Check
and
fill
the
pump
reservoir
Clogged filter
Inspect, clean and/or replace
the pump filter
Nut
Return
with
retract
stroke
Ball Plungers are not engaging
the Drive Sleeves
Thread the Ball Plungers to the
correct depth in the Housing
