11
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
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 air
Damaged gasket or seal
Replace gasket or seal
Cracked/worn head valve bumper
Replace bumper
Loose cap screws
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 cylinder cap spring
Replace cylinder cap spring
Head valve stuck in cap
Disassemble/Check/Lubricate
Lack of power; slow to cycle
Tool dry, lacks lubrication
Use BOSTITCH Air Tool Lubricant
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 correctly
on bottom bumper
Disassemble to correct
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)
Dry/dirty magazine
Clean/lubricate use BOSTITCH
Air Tool Lubricant
Worn magazine
Replace magazine
Fasteners jam in tool
Driver channel worn
Replace nose/check door
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
Fastener misses
Broken / chipped guide
Replace guide
metal connector hole
Broken / missing
158457 torsion spring
Replace torsion spring
(grease before installation)
Broken Pendulum
Replace pendulum and
torsion spring
Broken 158455 pin
Replace pin and torsion spring
