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19
English
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.
Check function of nail feeder per
page 17.
Clean and lubricate.
Ribbon spring weakened 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 bars, 8.5 kgf/cm
2
))
—————— Use Hitachi pneumatic tool lubricant.
Driver blade worn? Contact Hitachi for replacement.
Piston O – ring worn or damaged?
Drives too deep. Check air pressure. Reduce air pressure.
(Adjust 70 – 120 psi)
Skipping nails.
Intermittent feed.
Check for proper nails. Use only recommended nails.
Check function of nail feeder per
page 17.
Clean and lubricate.
Ribbon spring weakened or
damaged?
Replace ribbon spring.
—————— Use Hitachi pneumatic tool lubricant.
Piston O – ring cut or heavily worn? Contact Hitachi for replacement.
Nail feeder (A) worn or damaged? Replace nail feeder (A).
Nails jam.
Driven nail is bent.
Check for proper nails. Use only recommended nails.
Driver blade worn? Contact Hitachi for replacement.
Nail feeder (A) worn or damaged? Replace nail feeder (A).
Drives properly during normal
operation, but does not drive fully at
faster nailing speeds.
Check inside diameter of air hose. Use larger air hose.
000BookNR90AD(S1).indb19000BookNR90AD(S1).indb19 2015/07/0314:11:462015/07/0314:11:46
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