Trigger valve housing
O-ring cut or cracked
Replace O-ring
leaks air
Trigger valve stem
O-ring/seals cut or cracked
Replace trigger valve assembly
leaks air
Frame/nose leaks
Loose nose screws
Tighten and recheck
O-ring or gasket is cut or cracked
Replace O-ring or gasket
Bumper cracked/worn
Replace bumper
Frame/cap leaks
Damaged gasket or seal
Replace gasket or seal
air
Cracked/worn head valve
Replace bumper
bumper
Loose cap screws
Tighten and recheck
Failure to cycle
Air supply restriction
Check air supply equipment
Tool dry, lack of lubrication
Use air tool oil
Worn head valve O-rings
Replace O-rings
Broken cylinder cap spring
Replace cylinder cap spring
Head valve stuck in cap
Disassemble/check/lubricate
Lack of power;
Tool dry, lacks lubrication
Use air tool oil
slow to cycle
Broken cylinder cap spring
Replace cap spring
O-rings/seals cut or cracked
Replace O-rings/seals
Exhaust blocked
Check bumper, head valve spring, muffler
Trigger assembly worn/leaks
Replace trigger assembly
Dirt/tar build up on driver
Disassemble nose/driver to clean
Cylinder sleeve not seated
Disassemble to correct
correctly on bottom bumper
Head valve dry
Disassemble/lubricate
Air pressure too low
Check air supply equipment
Skipping fasteners;
Worn bumper
Replace bumper
intermittent feed
Tar/dirt in driver channel
Disassemble and clean nose and driver
Air restriction/inadequate air
Replace quick disconnect fittings
flow through quick disconnect
socket and plug
Worn piston O-ring
Replace O-ring, check driver
Tool dry, lacks lubrication
Use air tool oil
Damaged pusher spring
Replace spring
Low air pressure
Check air supply system to tool
Loose magazine nose screws
Tighten all screws
Fasteners too short for tool
Use only recommended fasteners
Bent Fasteners
Discontinue using these fasteners
Wrong size fasteners
Use only recommended fasteners
Leaking head cap gasket
Tighten screws/replace gasket
Trigger valve O-ring cut/worn
Replace O-ring, check driver
Broken/chipped driver
Replace Driver (check piston O-ring)
Dry/dirty magazine
Clean / lubricate with air tool oil
Worn magazine
Replace magazine
Page 7
TROUBLESHOOTING
POSSIBLE CAUSES
LIKELY SOLUTIONS
PROBLEM
