Symptom possible Cause(s) Corrective actionAir leaking at trigger valveareaO-Rings in trigger valve housing aredamagedReplace o-rings and check operation of WorkContact Element (WCE)Air leaking between housingand nose1 Loose screws in housing 1 Tighten screws2 Damaged O-Rings 2 Replace o-rings3 Damage to bumper 3 Replace bumperAir leaking between housingand cap1 Loose screws 1 Tighten screws2 Damaged gasket 2 Replace gasketStapler skips driving staple 1 Worn bumper 1 Replace bumper2 Dirt in nose piece 2 Clean drive channel3 Dirt or damage prevent staples or pusherfrom moving freely in magazine3 Clean magazine4 Damaged pusher spring 4 Replace spring5 Inadequate air flow to stapler 5 Check fitting, hose, or compressor6 Worn O-Ring on piston or lack oflubrication6 Replace and lubricate o-rings7 Damaged O-Ring on trigger valve 7 Replace o-rings8 Air leaks 8 Tighten screws and fittings9 Cap gasket leaking 9 Replace gasketStapler runs slow or has lossof power1 Stapler not lubricated sufficiently 1 Lubricate stapler2 Broken spring in cylinder cap 2 Replace spring3 Exhaust port in cap is blocked 3 Replace damaged internal partsStaples are jammed instapler1 Guide on driver is worn 1 Replace guide2 Staples are not correct size 2 Use only recommended staples3 Staples are bent 3 Replace with undamaged staples4 Magazine or nose screws are loose 4 Tighten screws5 Driver is damaged 5 Replace driver6 Staples loaded incorrectly 6 Review Loading/Unloading section in thismanualAir leaking at trigger valvestemO-Rings or seals are damaged Replace o-rings or sealsTroubleshooting ChartStop using stapler 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.8Operating Instructionswww.chpower.com