Dewalt DWFP72155 Instruction Manual - Page 15

English TROUBLESHOOTING GUIDE MANY COMMON PROBLEMS CAN BE SOLVED EASILY BY UTILIZING THE CHART BELOW. FOR MORE SERIOUS OR PERSISTENT PROBLEMS, CONTACT A DEWALT 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 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 head valve Replace head valve Loose cap screws Tighten and recheck Failure to cycle Air supply restriction Check air supply equipment Worn head valve Replace head valve Broken cylinder cap spring Replace cylinder cap spring Head valve stuck in cap Disassemble / Check Failure to complete cycle Debris in nose, door, contact arm area Clean nose, door, contact arm area 13