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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,

Check for a jam.

Clear a jam page 23.

but no nail is driven.

 

 

Nail feeder damaged?

Replace nail feeder.

 

 

 

 

 

Feed spring weakened

Replace feed spring.

 

or damaged?

 

 

Check for proper nails.

Use only recommended

 

 

nails.

Weak drive.

Check air pressure.

Increase air pressure.

Slow to cycle.

 

(Do not exceed 120 psi

 

 

(8.3 bar 8.5 kgf/cm2))

 

Check position of nailing

Readjust per page 21.

 

depth adjuster.

 

 

 

 

 

—————

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 – 8.3bar 5 – 8.5 kgf/cm2))

 

Check position of nailing

Readjust per page 21.

 

depth adjustment.

 

 

 

 

Skipping nails.

Check for proper nails.

Use only recommended

Intermittent feed.

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.

Nails jam.

Check for proper nails.

Use only recommended

Driven nail is bent.

 

nails.

 

Driver blade worn?

Contact Hitachi for

 

 

replacement.

Drives properly during

Check inside diameter of

Use larger air hose.

normal operation, but does

air hose.

 

not drive fully at faster

 

 

nailing speeds.

 

 

 

 

 

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