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PROBLEM
Air leaking at trigger valve
area.
Air leaking through the
exhaust deflector.
Tool fails to drive fastener.
Tool runs slow or has loss
of power.
SOLUTION
Seals must be replaced &
operation of Contact trip must
be checked. On the NBSNC2x4
contact *AWSC for correct part.
All other nailers purchase
Trigger Repair Kit.
Spring needs to be replaced. On
the NBSNC2x4 contact *AWSC
for correct part. All other nailers
purchase Top Repair Kit.
Seals must be replaced.
Purchase Top Repair Kit on all
nailers.
Driver guide needs to be replaced.
Purchase Driver Blade Kit
Replace feed pawl. Contact a
*AWSC
Replace feed pawl spring. Con-
tact a *AWSC
Replace feed pawl pin. Contact a
*AWSC
Verify air flow or pressure to tool.
Replace or lubricate seal.
Purchase Bottom Repair Kit
Replace seal. Purchase Trigger
Repair Kit
Screws and fittings need to be
tightened.
Replace seal. Purchase Top Re-
pair Kit
Tools needs to be lubricated.
Verify air flow or pressure to tool.
Replace seal. Purchase Bottom
Repair Kit
Spring needs to be replaced.On
the NBSNC2x4 contact *AWSC
for correct part. All other nailers
purchase Top Repair Kit.
Replace seals. Contact a *AWSC
CAUSE
Seals in trigger valve housing
are damaged.
Broken /worn head valve spring.
Broken /worn head valve seals.
Worn or damaged driver guide.
Damaged feed pawl.
Worn feed pawl spring.
Damaged feed pawl pin.
Inadequate air flow or pressure
to Tool.
Worn seal on piston or lack of
lubrication.
Damaged seal on trigger valve.
Air leaks.
Cap seal leaking.
Tool not lubricated sufficiently.
Inadequate air flow or pressure
to tool.
Worn seal on piston.
Broken spring in cylinder cap.
Worn head valve seals.
Stop using the Tool immediately if any of the following occur.
Serious personal injury could occur.
Warranty repairs or replacements must be performed by a DeVilbiss Air Power
Authorized Service Center Only.
TROUBLESHOOTING GUIDE