TROUBLESHOOTING GUIDE
MANY COMMON PROBLEMS CAN BE SOLVED EASILY BY UTILIZING THE CHART BELOW.
FOR MORE SERIOUS OR PERSISTENT PROBLEMS, CONTACT A D
EWALT SERVICE CENTER OR CALL 1-(800)-4-DEWALT.
WARNING: To reduce the risk of serious personal injury, remove
fasteners from magazine before making any adjustments or servicing this tool.
SYMPTOM CAUSE FIX
Failure to cycle Moveable nose too far from workpiece Place nail point in metal connector hole/make sure tool is
not tipped so magazine is in contact with work surface
Lack of power; slow to cycle Tool dry, lacks lubrication
Lubricate tool using DEWALT pneumatic tool oil
Broken head valve spring Replace head valve spring
O-rings cut or cracked/gasket damaged Replace O-rings/gasket
Exhaust blocked Check top seal, head valve, deflector cover; replace
Trigger valve worn/leaks Replace trigger valve assembly
Dirt/grime built up on driver Disassemble to remove driver; clean driver
Sleeve not seated correctly on nose Disassemble to correct
Head valve not seated correctly on sleeve Disassemble to correct; replace
Head valve dry Disassemble/lubricate
Air pressure too low Check air supply equipment
Contact arm valve exhaust/port/channel
blocked
Disassemble/Check/Clean; replace assembly
Skipping fasteners; intermittent
feed
Worn magazine Replace magazine
Dry/dirty magazine Clean/lubricate
using DEWALT pneumatic tool oil
Broken/chipped driver Replace driver (check driver piston O-ring)
Trigger valve O-ring cut or cracked Replace trigger valve assembly
Leaking deflector gasket Tighten screws; replace gasket
Wrong sized fasteners Use only recommended fasteners
Bent/damaged fasteners or collation Discontinue using these fasteners
Loose magazine nose screws Tighten all screws
Low air pressure Check air supply system to tool
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