Hitachi Koki NT 65A3 Mode D'emploi page 25

Operator troubleshooting
Most minor problems can be resolved quickly and easily using the table below.
If problems persist, contact a Hitachi authorized service center for assistance.
PROBLEM
Nailer operates,
but no nail is driven.
Weak drive.
Slow to cycle.
Drives too deep.
Skipping nails.
Intermittent feed.
Nails jam.
Driven nail is bent.
Drives properly during
normal operation, but does
not drive fully at faster
nailing speeds.
CHECK METHOD
Check for a jam.
Nail feeder damaged?
Ribbon spring weakend
or damaged?
Check for proper nails.
Check air pressure.
———
Driver blade worn?
Piston O-ring worm or
damaged?
Check air pressure.
Check for proper nails.
Nail feeder damaged?
Ribbon spring weakend or
damaged?
Piston O-ring worn or
damaged?
Check for proper nails.
Driver blade worn?
Check inside diameter of
air hose.
CORRECTION
Clear a jam page 22.
Replace nail feeder.
Replace ribbon spring.
Use only recommended
nails.
Increase air pressure.
(Do not exceed 120 psi
(8.3 bar 8.5 kgf/cm
Use Hitachi pneumatic tool
lubricant.
Contact Hitachi for
replacement.
Reduce air pressure.
(Adjust 70 – 120 psi)
Use only recommended
nails.
Replace nail feeder.
Replace ribbon spring.
Contact Hitachi for
replacement.
Use only recommended
nails.
Contact Hitachi for
replacement.
Use larger air hose.
English
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