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The following table shows possible problems and their causes:
Problem, cause, remedy
Problem
Machine does not
start
Machine keeps on
running after
releasing the safety
lever control
Low speed
Speed too high
Hydraulic fluid
leaking
Other problems
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.
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.
TROUBLESHOOTING
Cause
Not connected to hydraulic supply.
Defective hydraulic hoses or quick
couplings
Hydraulic hoses inverted
Too little operating pressure
Too small hose diameter
Too little volume flow
Too high back pressure
Too high operating pressure
Too high volume flow
Wrong hydraulic fluid
Damaged sealings
-
REPAIR AND SPARE PARTS LIST
Remedy
Connect and open the hydraulic line
Replace hydraulic hoses or quick
couplings
Connect hydraulic hoses correctly
Increase operating pressure
Choose larger hose diameter
Increase volume flow
Reduce back pressure
Adjust to max. operating pressure
(see technical specification)
Reduce volume flow
Use appropriate hydraulic fluid Ensure
sufficient cooling
Replace sealings
Contact authorized expert company
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