-10-
TROUBLE SHOOTING
PROBLEM
CAUSE
CORRECTION
Trigger valve housing leaks air . . . . . . . . . O-ring cut or cracked . . . . . . . . . . . . . . . . . . . . .Replace O-ring
Trigger valve stem leaks air . . . . . . . . . . . . O-ring/seals cut or cracked . . . . . . . . . . . . . . . . .Replace trigger valve assembly
Frame/nose leaks air . . . . . . . . . . . . . . . . . O-ring or Gasket is cut or cracked . . . . . . . . . . .Replace O-ring or gasket
Bumper cracked/worn . . . . . . . . . . . . . . . . . . . . .Replace bumper
Frame/cap leaks air . . .. . . . . . . . . . . . . . . . Damaged gasket or seal . . . . . . . . . . . . . . . . . .Replace gasket or seal
Loose cap . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Tighten and recheck
Failure to cycle . . . . . . . . . . . . . . . . . . . . . . Air supply restriction . . . . . . . . . . . . . . . . . . . . . .Check air supply equipment
Tool dry, lack of lubrication . . . . . . . . . . . . . . . . .Use BOSTITCH Air Tool Lubricant
Worn head valve O-rings . . . . . . . . . . . . . . . . . .Replace O-rings
Broken head valve spring . . . . . . . . . . . . . . . . . .Replace head valve spring
Lack of power; slow to cycle. . . . . . . . . . . . Tool dry, lacks lubrication . . . . . . . . . . . . . . . . . .Use BOSTITCH Air Tool Lubricant
Broken head valve spring . . . . . . . . . . . . . . . . . .Replace head valve spring
O-rings/seals cut or cracked . . . . . . . . . . . . . . . .Replace O-rings/seals
Exhaust blocked . . . . . . . . . . . . . . . . . . . . . . . .Check frame, muffler, end cap, bumper, driver plate
Trigger assembly worn/leaks . . . . . . . . . . . . . . .Replace trigger assembly
Dirt/tar build up on driver . . . . . . . . . . . . . . . . . .Disassemble nose/driver to clean
Head valve dry . . . . . . . . . . . . . . . . . . . . . . . . . .Disassemble/lubricate
Air pressure too low . . . . . . . . . . . . . . . . . . . . . .Check air supply equipment
Skipping fasteners; intermittent feed . . . . Worn bumper . . . . . . . . . . . . . . . . . . . . . . . . . . .Replace bumper
Tar/dirt in driver channel . . . . . . . . . . . . . . . . . . .Disassemble and clean nose and driver
Air restriction/inadequate air flow through
quick disconnect socket and plug . . . . . . . . . . . .Replace quick disconnect fittings
Worn piston O-ring . . . . . . . . . . . . . . . . . . . . . . .Replace O-ring, check driver
Tool dry, lacks lubrication . . . . . . . . . . . . . . . . . .Use BOSTITCH Air Tool Lubricant
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
Broken/chipped driver . . . . . . . . . . . . . . . . . . . . .Replace driver (check piston O-ring)
Worn magazine . . . . . . . . . . . . . . . . . . . . . . . . .Replace magazine
Fasteners jam in tool. . . . . . . . . . . . . . . . . . Driver channel worn . . . . . . . . . . . . . . . . . . . . . .Replace nose/ check driver guide cover
Wrong size fasteners . . . . . . . . . . . . . . . . . . . . .Use only recommended fasteners
Bent fasteners . . . . . . . . . . . . . . . . . . . . . . . . . .Discontinue using these fasteners
Loose magazine/nose screws . . . . . . . . . . . . . .Tighten all screws
Broken/chipped driver . . . . . . . . . . . . . . . . . . . . .Replace driver
