Troubleshooting Guide

Operating Instructions	Model NB0064

Stop using nailer immediately if any of the following problems occur. Serious

! WARNING personal injury could result. Any repairs or replacements must be done by a Qualified Service Person or Authorized Service Center.

Problem	Cause	Solution


Air leaking at trigger valve	O-Rings in trigger valve housing are	Replace O-Rings. Check operation of Work Contact
	damaged	Element (WCE)

Air leaking between hous-	Loose screws in housing	Tighten screws
ing and nose	Damaged O-Rings	Replace O-Rings
	Damage to bumper	Replace bumper

Air leaking between hous-	Loose screws	Tighten screws
ing and cap	Damaged gasket	Replace gasket

Nailer skips driving nail	Worn bumper	Replace bumper
	Dirt in nose piece	Clean drive channel
	Dirt or damage prevent nails or pusher	Clean magazine
	from moving freely in magazine
	Damaged pusher spring	Replace spring
	Inadequate air flow to nailer	Check fitting, hose or compressor
	Worn O-Ring on piston or lack of lubri-	Replace and lubricate O-Rings
	cation
	Damaged O-Ring on trigger valve	Replace O-Rings
	Air leaks	Tighten screws and fittings
	Cap gasket leaking	Replace gasket

Nailer runs slow or has loss	Nailer not lubricated sufficiently	Lubricate nailer
of power	Broken spring in cylinder cap	Replace spring
	Exhaust port in cap is blocked	Replace damaged internal parts

Nails are jammed in nailer	Guide on driver is worn	Replace guide
	Nails are not correct size	Use only recommended nails
	Nails are bent	Replace with undamaged nails
	Magazine or nose screws are loose	Tighten screws
	Driver is damaged	Replace driver

Air leaking at trigger valve	O-Rings or seals are damaged	Replace O-Rings or seals
stem

Problem