Dewalt DWMIIIFS Instruction Manual - Page 11
Problem, Cause, Correction
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PROBLEM Lack of power; slow to cycle Skipping fasteners; intermittent feed Fasteners jam in tool CAUSE Tool dry, lacks lubrication Broken cylinder cap spring O-rings/seals cut or cracked Exhaust blocked Dirt/tar build up on driver Cylinder sleeve not seated correctlyon bottom bumper Head valve dry Air pressure too low Worn bumper Tar/dirt in driver channel Air restriction/inadequate air flow through quick disconnect socket and plug Worn piston O-ring Tool dry, lacks lubrication Damaged pusher spring Low air pressure Loose magazine nose screws Fasteners too short for tool Bent fasteners Wrong size fasteners Leaking head cap gasket Broken/chipped driver Dry/dirty magazine Worn magazine Driver channel worn Wrong size fasteners Bent fasteners Loose magazine/nose screws Broken/chipped driver CORRECTION Use Air Tool Lubricant Replace cap spring Replace O-rings/seals Check bumper, head valve spring, muffler Disassemble nose/driver to clean Disassemble to correct Disassemble/lubricate Check air supply equipment Replace bumper Disassemble and clean nose and driver Replace quick disconnect fittings Replace O-ring, check driver Use Air Tool Lubricant 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 driver (check piston O-ring) Clean/lubricate use Air Tool Lubricant Replace magazine Replace nose/check door Use only recommended fasteners Discontinue using these fasteners Tighten all screws Replace driver 11- ENG