DeWalt DWSL18CAP Instruction Manual page 14

MANY COMMON PROBLEMS CAN BE SOLVED EASILY BY UTILIZING THE CHART BELOW.
fasteners from magazine before making any adjustments or servicing this tool.
SYMPTOM CAUSE
Skipping fasteners; intermittent Worn bumper
feed
Tar/dirt in driver channel
Air restriction/inadequate air flow through quick disconnect
socket and plug
Worn piston ring
Damaged pusher spring
Low air pressure
Loose magazine nose screws
Fasteners too short for tool
Bent fasteners
Wrong size fasteners
Leaking head cap gasket
Trigger valve O-ring cut/worn
Broken/chipped driver
Dry/dirty magazine
Worn magazine
Clogged air filter
Fasteners jam in tool Driver channel worn
Wrong size fasteners
Bent fasteners
Loose magazine/nose screws
Broken/chipped driver
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TROUBLESHOOTING GUIDE
WARNING: To reduce the risk of serious personal injury, remove
FIX
Replace bumper
Disassemble and clean nose and driver
Replace quick disconnect fittings
Replace ring, check driver
Replace spring
Check air supply system to tool
Tighten all screws
Use only recommended fasteners
Discontinue using these fasteners
Use only recommended fasteners
Tighten screws/replace gasket
Replace O-ring
Replace driver (check piston ring)
Clean
Replace magazine
Clean or replace air filter
Replace nose/check door
Use only recommended fasteners
Discontinue using these fasteners
Tighten all screws
Replace driver