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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 CHECK METHOD CORRECTION
Nailer operates, but no nail is
driven.
Check for a jam. Clear a jam page 18.
Nail feeder damaged? Replace nail feeder.
Ribbon spring weakend or
damaged?
Replace ribbon spring.
Check for proper nails. Use only recommended nails.
Weak drive.
Slow to cycle. Check air pressure.
Increase air pressure.
(Do not exceed 120 psi (8.3
bar 8.5 kgf/cm
2
))
Check position of nailing
depth adjustment adjuster.
Readjust per page 15.
———
Use Hitachi pneumatic tool
lubricant.
Driver blade worn?
Contact Hitachi for
replacement.
Piston O-ring worm or
damaged?
Drives too deep.
Check air pressure.
Reduce air pressure.
(Adjust 70 – 120 psi
(4.9 – 8.3 bar 5 – 8.5 kgf/cm
2
))
Check position of nailing
depth adjustment guide plate
(A).
Readjust per page 15.
Skipping nails.
Intermittent feed.
Check for proper nails. Use only recommended nails.
———
Lubricate the nail rail per page
18.
Nail feeder damaged? Replace nail feeder.
Ribbon spring weakend or
damaged?
Replace ribbon spring.
Piston O-ring worn or
damaged?
Contact Hitachi for
replacement.
Nails jam.
Driven nail is bent.
Check for proper nails. Use only recommended nails.
———
Lubricate the nail rail per page
18.
Driver blade worn?
Contact Hitachi for
replacement.
Drives properly during normal
operation, but does not drive
fully at faster nailing speeds.
Check inside diameter of air
hose.
Use larger air hose.
21
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