Hitachi NV 45AB2 User Manual

--- 16 ---
Body
...
Remove foreign
matter in the return
air chamber.
Magazine is loaded with
abnormal nails (bent nails,
too large or too small nail
heads, abnormal collation,
others).
Polish the scratched portion
with sandpaper. Replace
the parts.
<Driving section: Nose, feeder,
feed piston, etc.
>
Sliding resistance of the
feed piston is too high.
<Nails>
Magazine is not loaded with
specified genuine nails.
Problem
Possible cause
( : most-common cause)
Inspection method Remedy
9. TROUBLESHOOTING GUIDE
9-1. Troubleshooting and Correction
1) Nails cannot
be driven.
Check that the magazine is
correctly loaded with
specified nails.
Remove the feed piston and
check the feed piston sliding
surface of the nose.
Open the nail guide and
perform idle driving to check
the feeder's operation.
Use specified nails.
Remove the abnormal nails
and load the nailer with
proper nails.
Link pieces are deformed or
broken.
Replace the abnormal parts.
Apply grease to the sliding
surface.
Air passage is clogged with
broken pieces of piston
bumper, etc.
Air pressure is too low.
Dust sticks to the feeder
sliding portion of the nose,
or lubrication is needed.
Remove foreign matter.
Replace the piston bumper
with new one.
Nails are not correctly
loaded in the groove of the
nose.
Check that nails are
correctly loaded in the
groove of the nose.
Load nails in the correct
position in the nose.
Remove dust and then
lubricate the sliding surface.
Feeder piston chamber
contains foreign matter such
as broken pieces of piston
bumper, etc.
Adjust the air pressure to
4.9 --- 8.3 bar (5 --- 8.5
kgf/cm
2
, 70 --- 120 psi).
Nail guide face of the nose
is abnormal (deformed,
burrs or damaged).
Check that the driving
section is not abnormal
(burrs, deformed, damaged
or worn).
Nails or link pieces are
jammed.
Spring or feeder spring is
abnromal (damaged or
fatigued).
Feeder is abnormal
(damaged or worn).
Deburr the nail guide face.
Correct the deformed parts.
Nose
...
Remove foreign
matter in the air
passage and the
feed piston
chamber.

Hitachi NV 45AB2 Specifications

General

Brand	Hitachi
Model	NV 45AB2
Category	Nail Gun
Language	English