Hitachi NT65MA2 Instruction Manual - Page 27

Operator troubleshooting

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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 Nailer operates, but no nail is driven. Weak drive. Slow to cycle. CHECK METHOD Check for a jam. Nail feeder damaged? Ribbon spring weakend or damaged? Check for proper nails. nails. Check air pressure. Check position of nailing depth adjustment adjuster. Drives too deep. Skipping nails. Intermittent feed. Driver blade worn? Piston O-ring worm or damaged? Check air pressure. Check position of nailing depth adjustment guide plate (A). Check for proper nails. nails. Nails jam. Driven nail is bent. Nail feeder damaged? Ribbon spring weakend or damaged? Piston O-ring worn or damaged? Check for proper nails. Driver blade worn? Drives properly during Check inside diameter of normal operation, but does air hose. not drive fully at faster nailing speeds. CORRECTION Clear a jam page 24. Replace nail feeder. Replace ribbon spring. Use only recommended Increase air pressure. (Do not exceed 120 psi (8.3 bar 8.5 kgf/cm2)) Readjust per page 21. Use Hitachi pneumatic tool lubricant. Contact Hitachi for replacement. Reduce air pressure. (Adjust 70 - 120 psi (4.9 - 8.3bar 5 - 8.5 kgf/cm2)) Readjust per page 21. Use only recommended Libricate the nail rail per page 24. Replace nail feeder. Replace ribbon spring. Contact Hitachi for replacement. Use only recommended nails. Libricate the nail rail per page 24. Contact Hitachi for replacement. Use larger air hose. 27

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English
27
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 24.
Nail feeder damaged?
Replace nail feeder.
Ribbon spring weakend
Replace ribbon 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 adjustment 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 guide
plate (A).
Check for proper nails.
Use only recommended
nails.
Libricate the nail rail per
page 24.
Nail feeder damaged?
Replace nail feeder.
Ribbon spring weakend or
Replace ribbon spring.
damaged?
Piston O-ring worn or
Contact Hitachi for
damaged?
replacement.
Check for proper nails.
Use only recommended
nails.
Libricate the nail rail per
page 24.
Driver blade worn?
Contact Hitachi for
replacement.
Check inside diameter of
Use larger air hose.
air hose.