Use and Care Manual

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
Trigger valve housing leaks air O-ring cut or cracked Replace O-ring
Trigger valve stem leaks air O-ring/seals cut or cracked Replace trigger valve assembly
Frame/nose leaks air Loose nose screws Tighten and recheck
O-ring or Gasket is cut or cracked Replace O-ring or gasket
Bumper cracked/worn Replace bumper
Frame/cap leaks air Damaged gasket or seal Replace gasket or seal
Cracked/worn top bumper Replace bumper
Loose cap Tighten and recheck
Failure to cycle Air supply restriction Check air supply equipment
Tool dry, lack of lubrication Use D
EWALT pneumatic tool oil
Worn head valve O-rings Replace O-rings
Broken head valve spring Replace head valve spring
Head valve stuck Disassemble/Check/Lubricate
Lack of power; slow to cycle Tool dry, lacks lubrication Use DEWALT pneumatic tool oil
Broken head valve spring Replace spring
O-rings/seals cut or cracked Replace rings/seals
Exhaust blocked Check bumper, head valve spring, muffler
Trigger assembly worn/leaks Replace trigger assembly
Dirt/tar build up on driver Disassemble nose/driver to clean
Bottom bumper not seated correctly Disassemble to correct
Head valve dry Disassemble/lubricate
Air pressure too low Check air supply equipment
English
13