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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

Piston Ass’y does not

Check air pressure.

Adjust at 70—120psi.

return to full up position

 

(4.9—8.3bar 5—8.5kgf/cm2)

at end of cycle.

 

 

Piston O-ring cut or

Contact Hitachi for

 

 

 

 

heavily worn?

replacement.

 

 

 

 

 

 

Driver blade bent or

 

 

 

damaged at the driving

 

 

 

end?

 

 

 

Air exhaust clogged with

Clean air exhaust.

 

 

dirt or sludged lubricant?

 

 

 

———

Use Hitachi pneumatic tool

 

 

lubricant.

 

 

 

 

 

 

 

Weak drive.

Check air pressure.

Increase air pressure.

Slow to cycle.

 

(Do not exceed 120 psi

 

 

 

(8.3 bar 8.5 kgf/cm2))

 

 

Driver blade worn at the tip?

 

 

 

 

 

 

 

Piston O-ring worm or

Contact Hitachi for

 

 

damaged?

replacement.

 

 

———

Use Hitachi pneumatic tool

 

 

lubricant.

 

 

 

Skipping staples.

———

Use Hitachi pneumatic tool

Intermittent feed.

lubricant.

 

 

 

Staple feeder damaged?

Replace staple feeder.

 

 

 

 

 

 

Ribbon spring weakend or

Replace ribbon spring.

 

 

damaged?

 

 

 

Staple guide obstructed

Clean staple guide.

 

 

by dirt?

 

 

 

Check for proper staples.

Use only recommended

 

 

 

staples.

 

 

Driver blade damaged

Contact Hitachi for

Staples jam.

 

 

at the driving end?

replacement.

 

 

 

 

Drives properly during

 

 

normal operation, but does

Check inside diameter of

Use larger air hose.

not drive fully at faster

air hose.

 

stapling speeds.

 

 

 

 

 

 

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Hitachi N5008AB, N3804AB instruction manual Operator troubleshooting, Problem Check Method Correction