Fault Location
SYMPTOM POSSIBLE CAUSE ACTION
Insufficient power supply Check power supply
Starting switch in position 0 Turn switch to 1
Thermal relay disconnected Activate relay
Motor does not
start
Low hydraulic oil Top up
Damaged hoses Check and replace if needed
Leaking connections Check for tightness/leaks
Low hydraulic
oil level
Defect hose couplings Replace couplings
Low pressure relief valve setting Adjust valve
High back pressure Check hose system for blockage/
defects
Poor tool
performance
Worn hydraulic pump Replace pump
Check for loose connections
on line to pump
Make sure that filler cap on tank
is not loose
Frothy or creamy
coloured
hydraulic oil
Air or water in oil
Check that oil level is at the top of
the sight glass
Poor siting of powerpack causing
warm air to recirculate
Resite powerpack for free
air circulation
Blocked oil cooler Blow cooler clean.
NEVER use a wire brush
Defect fan Replace fan
Back pressure too high Check hose system
Tool runs hot
Tool defect Check and service tool
Low hydraulic oil - tripping float
switch
Add hydraulic oil
Insufficient power supply Check power supply
Pack stops
suddenly
Thermal relay disconnected Activate relay