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TROUBLESHOOTING
The following table shows possible problems and their causes:
Problem, cause, remedy
Problem
Cause
Remedy
Machine does not
start
Not connected to hydraulic supply.
Connect and open the hydraulic line
Defective hydraulic hoses or quick
couplings
Replace hydraulic hoses or quick
couplings
Machine keeps on
running after
releasing the safety
lever control
Hydraulic hoses inverted
Connect hydraulic hoses correctly
Low speed
Too little operating pressure
Increase operating pressure
Too small hose diameter
Choose larger hose diameter
Too little volume flow
Increase volume flow
Too high back pressure
Reduce back pressure
Speed too high
Too high operating pressure
Adjust to max. operating pressure
(see technical specification)
Too high volume flow
Reduce volume flow
Hydraulic fluid
leaking
Wrong hydraulic fluid
Use appropriate hydraulic fluid Ensure
sufficient cooling
Damaged sealings
Replace sealings
Other problems
-
Contact authorized expert company
We ask you to send the machine to the manufacturer, if necessary.
If a problem cannot be solved, continue disassembling the impact wrench as far as
necessary. Dismount the impact wrench into the following assembly groups for repair. Always
keep impurities, like dirt and coarse dust, away from the internal parts.
REPAIR AND SPARE PARTS LIST
Assembly groups:
• Impact mechanism,
• hydraulic motor
• control,
• connecting block.
Spare parts
Only genuine the manufacturer spare parts may be used. There is no warranty for damages
and liability is disclaimed, if non-original spare parts and accessories are used.
Wear parts are marked (*) in the spare parts list. Additionally the following is available:
• Repair kit.
• Tuning up kit.
