12
TROUBLESHOOTING GUIDE
Stop using the Tool immediately if any of the following occur. Serious personal injury could occur.
Warranty repairs or replacements
must
be performed by a DeVilbiss Air Power Authorized
Service Center
Only.
SOLUTION
CAUSE
Seals in trigger shaft valve housing are dam-
aged.
Trigger shaft valve spring worn.
Loose exhaust deflector screws.
Damaged cylinder top seal.
Damaged cap seals.
Cap spring weak or damaged.
Worn or damaged joint guide.
Driver blade damaged.
Dirt between guide body and door.
Dirt or damage prevents fasteners or fastener
pusher from moving freely in magazine.
Damaged fastener pusher spring.
Inadequate air flow or pressure to tool.
Worn seal on piston or lack of lubrication.
Damaged seal on trigger shaft valve.
Cylinder sleeve seals damaged.
Cap seal leaking.
Tool not lubricated sufficiently.
Inadequate air flow or pressure to tool.
Broken spring in cylinder cap.
Worn seal on piston or lack of lubrication.
Exhaust port in cap is blocked.
Driver blade is worn or damaged
Fasteners are not correct size.
Fasteners are bent.
Fasteners coming apart in magazine.
Latch assembly weak or damaged.
Guide body groove damaged.
Door groove damaged.
Fasteners pusher system defective.
PROBLEM
Air leaking at trigger valve area.
Air leaking between housing and
exhaust deflector
Tool fails to drive fastener.
Tool runs slow or has loss of power.
Fasteners are jammed in tool.
Seals must be replaced.
(NSK-018)
Replace valve spring.
(NSK-018)
Screws need to be tightened.
Seals need to be replaced.
(NSK-006)
Seals needs to be replaced.
(NSK-006)
Replace cap spring.
(NSK-006)
Joint guide needs to be replaced.
(NSK-004)
Replace driver blade.
(NSK-004)
Clean.
Magazine needs to be cleaned or repaired.
Spring needs to be replaced.
Verify air pressure to tool.
Seal need to be replaced. Lubricate.
(NSK-
004)
Seal needs to be replaced or lubricated.
(NSK-018)
Replace seals.
(NSK-008)
Seal needs to be replaced.
(NSK-006)
Tool needs to be lubricated.
Verify air pressure to tool.
Replace spring.
(NSK-006)
Replace seal
(NSK-004)
lubricate.
Inspect and clear blockage.
Replace driver blade.
(NSK-004)
Fasteners recommended for tool must be
used.
Replace with undamaged fasteners.
Verify and replace.
Replace latch assembly.
Repace guide body.
Replace door.
Determine defective part and replace.
Summary of Contents for AFN5
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