Troubleshooting - DeWalt DW451S2 Manual De Instrucciones

Problem
Trigger valve housing leaks air.
Trigger valve stem leaks air.
Frame/nose leaks air.
Frame/cap leaks air.
Failure to cycle.
Lack of power; slow to cycle.
Skipping fasteners; intermittent
feed.
Fasteners jam in tool.

Troubleshooting

Cause
O-ring cut or cracked.
O-ring/seals cut or cracked.
Loose nose screws.
O-ring or Gasket is cut or cracked.
Bumper cracked/worn.
Damaged gasket or seal.
Cracked/worn head valve bumper.
Loose cap screws.
Air supply restriction.
Worn head valve O-rings.
Broken cylinder cap spring.
Head valve stuck in cap.
Broken cylinder cap spring.
O-rings/seals cut or cracked.
Exhaust blocked .
Trigger assembly worn/leaks.
Dirt/tar build up on driver.
Cylinder sleeve not seated correctlyon bottom bumper.
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.
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.
Worn magazine.
Driver channel worn.
Wrong size fasteners.
Bent fasteners.
Loose magazine/nose screws.
Broken/chipped driver.
Correction
Replace O-ring.
Replace trigger valve assembly.
Tighten and recheck.
Replace O-ring or gasket.
Replace bumper.
Replace gasket or seal.
Replace bumper.
Tighten and recheck.
Check air supply equipment.
Replace O-rings.
Replace cylinder cap spring.
Disassemble/Check.
Replace cap spring.
Replace O-rings/seals.
Check bumper, head valve spring, muffler.
Replace trigger assembly.
Disassemble nose/driver to clean.
Disassemble to correct.
Check air supply equipment.
Replace bumper.
Disassemble and clean nose and driver.
Replace quick disconnect fittings.
Replace O-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 O-ring).
Replace magazine.
Replace nose/check door.
Use only recommended fasteners.
Discontinue using these fasteners.
Tighten all screws.
Replace driver.
English
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