Troubleshooting, Problem Cause Correction

		TROUBLESHOOTING
PROBLEM	CAUSE	CORRECTION

Trigger valve housing leaks air Trigger valve stem leaks air Frame/nose leaks air

Frame/cap leaks air

Failure to cycle

Failure to complete cycle Lack of power; slow to cycle

Skipping fasteners; intermittent feed

Fasteners jam in tool

O-ring cut or cracked

Replace O-ring

O-ring/seals cut or cracked. . . . . . . . . . . . . . . Replace trigger valve assembly

O-ring or gasket is cut or cracked.. .. .. .. .. .. .. .. .. Replace O-ring or gasket

Bumper cracked/worn

Replace bumper

Damaged gasket or seal. . . . . . . . . . . . . . . . . . Replace gasket or seal

Cracked/worn head valve . . . . . . . . . . . . . . . . Replace head valve

Loose cap screws . . . . . . . . . . . . . . . . . . . . . . . Tighten and recheck

Air supply restriction. . . . . . . . . . . . . . . . . . . . . Check air supply equipment Worn head valve . . . . . . . . . . . . . . . . . . . . . . . . Replace head valve

Broken cylinder cap spring. . . . . . . . . . . . . . . Replace cylinder cap spring Head valve stuck in cap . . . . . . . . . . . . . . . . . . Disassemble / Check / Lubricate Debris in nose, door, contact arm area. . . . . Clean nose, door, contact arm area

Broken cylinder cap spring	Replace cap spring
Rings/seals cut or cracked	Replace rings/seals
Exhaust blocked	Check bumper, head valve spring
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
Air pressure too low	Check air supply equipment
Clogged air filter	Clean or replace air filter
Worn bumper	Replace bumper
Debris in nose, door, contact arm area	Clean nose, door, contact arm area
Air restriction/inadequate air flow through
quick disconnect socket and plug	Replace quick disconnect fittings
Worn piston ring	Replace ring, check driver
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 ring)
Dry/dirty magazine	Clean/lubricate use BOSTITCH Air Tool Lubricant
Worn magazine	Replace magazine
Clogged air filter	Clean or replace air filter
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

-15-