4
Symptom
Possible Cause(s)
Corrective Action
O-Ring in trigger valve is damaged
Check and replace O-Ring.
Trigger valve head is damaged
Check and replace trigger valve head.
Trigger valve stem, seal or O-Ring is damaged.
Check and replace trigger valve stem, seal, or O-
Ring
Air leaking between body and
drive guide
Damaged bumper
Check and replace bumper
Screw loose
Tighten screws
Damaged gasket
Check and replace gasket
Worn bumper
Replace bumper
Air pressure is too high
Adjust air pressure
Insufficient oil
Lubricate as instructed
Insufficient air supply
Check air supply
Broken spring in cylinder cap
Replace spring
Exhaust port in cylinder cap is blocked
Replace damaged internal parts.
Worn bumper or damaged spring
Replace bumper or pusher spring
Dirt in drive guide
Clean drive channel of front plate
Inadequate airflow to tool
Check hose and compressor fittings
Worn or dry O-Ring on piston
Replace O-Ring or lubricate
Cylinder cap seal leaking
Replace seal
Joint guider is worn
Replace joint guide
fasteners are wrong size or damaged
Use the recommended and undamaged fasteners
Magazine or front plate screws are loose
Tighten screws
Blade in piston assembly is damaged
Replace piston assembly
Worn blade in piston assembly
Replace piston assembly
Lack of power
Adjust to adequate air pressure
Slow cycling and loss of power
Check cylinder cap spring for broken coils or reduced
length.
Check if exhaust port of cylinder cap is restricted
Fasteners are jammed
Tool will not drive down tight
Air leak near top of tool or in
trigger area
Air leaking between body and
cylinder cap
Blade driving fastener too deeply
Runs slowly or has lost power
Tool skips a fastener
