Hitachi NT 65MA4 (S) ユーザーズマニュアル

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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
English
000Book_NT65MA4(S)_US.indb   21
000Book_NT65MA4(S)_US.indb   21
2010/11/24   9:04:31
2010/11/24   9:04:31