Hitachi NR 90AF Manuel D'instructions Et De Sécurité page 22

English
Maintenance chart
ACTION
Drain air line filter daily.
Keep lubricator filled.
Clean filter element — then Prevent clogging of filter
blow air through filter in
direction opposite to
normal flow.
Clean magazine and feeder Prevent a jam.
mechanism.
Keep push lever working
properly.
Lubricate the Nailer after
nailing.
Drain air compressor.
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.
WHY
Prevent accumulation of
moisture and dirt.
Keep the Nailer lubricated.
with dirt.
Promote operator safety and Blow clean daily.
efficient Nailer operation.
Extend the Nailer life.
Keep the Nailer operated
properly.
CHECK METHOD
Check for a jam.
Check function of nail feeder
per page 20.
Ribbon spring weakened or
damaged?
Check for proper nails.
Check air pressure.
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Driver blade worn?
Piston O – ring worn or
damaged?
Check air pressure.
— 22 —
HOW
Open manual petcock.
Fill with Hitachi pneumatic
tool lubricant.
Follow manufacturer's
instructions.
Blow clean daily.
Supply 5 – 10 drops of
lubricant into the Nailer.
Open petcock on air
compressor tank.
CORRECTION
Clean a jam.
Clean and lubricate.
Replace ribbon spring.
Use only recommended
nails.
Increase air pressure. (Do not
exceed 120 psi (8.3 bars,
2
8.5 kgf/cm ))
Use Hitachi pneumatic tool
lubricant.
Contact Hitachi for
replacement.
Reduce air pressure.
(Adjust 70 – 120 psi)