6.
Trouble shooting guide
6.1.
Repair troubleshooting
Problem
Remedy
Impact Wrench overheats
•
Operate wrench on 10 GPM
Impact wrench spins but
won’t impact…
•
Inspect front end for broken hammer pins or other broken parts.
Impact wrench only works in
one direction…
•
Check front end for broken parts
•
Check reversing valve for trash on one or more valve parts
Impact wrench works slow
and has low power…
•
•Check that torque adjustment valve is screwed in and not
adjusted all the way out.
•
Check that flow is 10 GPM and system pressure is set at 2000
PSI
Trigger sticks…
•
Check for dirt or clearance in trigger housing
•
Check for reverse flow (pigtails or qd’s recently changed)
•
Check back pressure on return line (at tool return should be 150
PSI or less).
Hydraulic oil running out of
front end…
•
Replace front shaft seal using part no. 02598 Shaft seal kit.
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OPERATION AND MAINTENANCE MANUAL I ENG_OMM_IMPACT_WRENCH_P01 I 09th November 2021
@Pandrol 2021
