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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
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 CORRECTION
Check for a jam. Clear a jam page 23.
Nail feeder damaged? Replace nail feeder.
Feed spring weakened Replace feed spring.
or damaged?
Check for proper nails. Use only recommended
nails.
Check air pressure. Increase air pressure.
(Do not exceed 120 psi
(8.3 bar 8.5 kgf/cm
2
))
Check position of nailing Readjust per page 21.
depth adjuster.
—————
Use Hitachi pneumatic tool
lubricant.
Driver blade worn? Contact Hitachi for
Piston O-ring worm or
replacement.
damaged?
Check air pressure. Reduce air pressure.
(Adjust 70 – 120 psi
(4.9 – 8.3bar 5 – 8.5 kgf/cm
2
))
Check position of nailing Readjust per page 21.
depth adjustment.
Check for proper nails. Use only recommended
nails.
Nail feeder damaged? Replace nail feeder.
Feed spring weakened or Replace feed spring.
damaged?
Piston O-ring worn or Contact Hitachi for
damaged? replacement.
Check for proper nails. Use only recommended
nails.
Driver blade worn? Contact Hitachi for
replacement.
Check inside diameter of Use larger air hose.
air hose.
01Eng_NT50AE2_US 11/19/10, 15:2626