8
Operating Instructions
www.chpower.com
Troubleshooting Chart
Stop using tool immediately if any of the following problems occur. Serious personal injury could occur.
Any repairs or replacements must be done by a Qualified Service Person or Authorized Service Center.
Symptom
Possible Cause(s)
Corrective action
Air leaking at trigger valve
area
O-rings in trigger valve housing are
damaged
Replace o-rings . Check operation of Work
Contact Element (WCE)
Air leaking between housing
and nose
1 . Loose screws in housing
1 . Tighten screws
2 . Damaged o-rings
2 . Replace o-rings
3 . Damage to bumper
3 . Replace bumper
Air leaking between housing
and cap
1 . Loose screws
1 . Tighten screws
2 . Damaged gasket
2 . Replace gasket
Tool skips driving fastener
1 . Worn bumper
1 . Replace bumper
2 . Dirt in nose piece
2 . Clean drive channel
3 . Dirt or damage prevent fasteners or
pusher from moving freely in magazine
3 . Clean magazine
4 . Damaged pusher spring
4 . Replace spring
5 . Inadequate air flow to tool
5 . Check fitting, hose, or compressor
6 . Worn o-ring on piston or lack of
lubrication
6 . Replace and lubricate o-rings
7 . Damaged o-ring on trigger valve
7 . Replace o-rings
8 . Air leaks
8 . Tighten screws and fittings
9 . Cap gasket leaking
9 . Replace gasket
Tool runs slow or has loss of
power
1 . Tool not lubricated sufficiently
1 . Lubricate tool
2 . Broken spring in cylinder cap
2 . Replace spring
3 . Exhaust port in cap is blocked
3 . Replace damaged internal parts
Fasteners are jammed in tool 1 . Guide on driver is worn
1 . Replace guide
2 . Fasteners are not correct size
2 . Use only recommended fasteners
3 . Fasteners are bent
3 . Replace with undamaged fasteners
4 . Magazine or nose screws are loose
4 . Tighten screws
5 . Driver is damaged
5 . Replace driver
