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TROUBLESHOOTING

PROBLEM CAUSE CORRECTION

Triggervalvehousing leaks air O-ringcut or cracked . . . . . . . . . . . . . . . . . . . .Replace O-ring
Triggervalvestem leaks air O-ring/sealscut or cracked .. . . . . . . . . . . . .Replace trigger valve assembly
Frame/noseleaks air O-ringor gasket is cut or cracked . . . . . . . . .Replace O-ringorgasket
Bumpercracked/worn . . . . . . . . . . . . . . . . . . .Replace bumper
Frame/capleaks air Damagedgasket or seal ... . . . . . . . . . . . . . .Replace gasket orseal
Cracked/wornhead valve . . . . . . . . . . . . . . .Replace head valve
Loosecap screws . . . . . . . . . . . . . . . . . . . . . . .Tighten and recheck
Failureto cycle Airsupply restriction ... . . . . . . . . . . . . . . . . .Check air supplyequipment
Wornhead valve .. . . . . . . . . . . . . . . . . . . . . .Replace head valve
Brokencylinder cap spring . . . . . . . . . . . . . . .Replace cylinder cap spring
Headvalve stuck in cap . . . . . . . . . . . . . . . . . .Disassemble / Check / Lubricate
Lackof power; slow to cycle Brokencylinder cap spring . . . . . . . . . . . . . . .Replace cap spring
Rings/sealscut or cracked ... . . . . . . . . . . . .Replace rings/seals
Exhaustblocked ... . . . . . . . . . . . . . . . . . . . . .Check bumper, head valve spring
Triggerassemblyworn/leaks .. . . . . . . . . . . .Replace trigger assembly
Dirt/tarbuild up on driver .. . . . . . . . . . . . . . .Disassemble nose/driver to clean
Cylindersleeve not seated correctly
onbottom bumper . . . . . . . . . . . . . . . . . . . . . . .Disassemble to correct
Airpressure too low . . . . . . . . . . . . . . . . . . . . .Check air supply equipment
Cloggedair filter ... . . . . . . . . . . . . . . . . . . . . .Clean or replace air filter
Skippingfasteners;
intermittentfeed Wornbumper...........................Replacebumper
Tar/dirtindriver channel ... . . . . . . . . . . . . . .Disassemble and cleannoseand driver
Airrestriction/inadequate air flow through
quickdisconnect socket and plug . . . . . . . . .Replace quickdisconnectfittings
Wornpiston ring ... . . . . . . . . . . . . . . . . . . . . .Replace ring, check driver
Damagedpusher spring . . . . . . . . . . . . . . . . . .Replace spring
Lowair pressure ... . . . . . . . . . . . . . . . . . . . . .Check air supply system to tool
Loosemagazine nose screws .. . . . . . . . . . .Tighten all screws
Fastenerstoo short for tool . . . . . . . . . . . . . . .Use only recommended fasteners
Bentfasteners . . . . . . . . . . . . . . . . . . . . . . . . . .Discontinue using these fasteners
Wrongsize fasteners ... . . . . . . . . . . . . . . . . .Use only recommended fasteners
Leakinghead cap gasket . . . . . . . . . . . . . . . . .Tighten screws/replace gasket
TriggervalveO-ring cut/worn ... . . . . . . . . . .Replace O-ring
Broken/chippeddriver ... . . . . . . . . . . . . . . . .Replace driver (check piston ring)
Dry/dirtymagazine ... . . . . . . . . . . . . . . . . . . .Clean/lubricate use BOSTITCH Air Tool Lubricant
Wornmagazine ... . . . . . . . . . . . . . . . . . . . . . .Replace magazine
Cloggedair filter ... . . . . . . . . . . . . . . . . . . . . .Clean or replace air filter
Fastenersjam in tool Driverchannel worn . . . . . . . . . . . . . . . . . . . . .Replace nose/check door
Wrongsize fasteners ... . . . . . . . . . . . . . . . . .Use only recommended fasteners
Bentfasteners . . . . . . . . . . . . . . . . . . . . . . . . . .Discontinue using these fasteners
Loosemagazine/nose screws .. . . . . . . . . . .Tightenall screws
Broken/chippeddriver ... . . . . . . . . . . . . . . . .Replace driver