Troubleshooting And Correction; Troubleshooting And Correction In The Case Of Gas Nailers - Hitachi NR90GC - 3-1/2" Gas Powered Clipped Head Framing Nailer Technical Data And Service Manual

9-2. Troubleshooting and Correction

(1) Troubleshooting and correction in the case of gas nailers

The mechanism of a gas nailer to produce output is completely different from that of a pneumatic nailer.
Following table shows the troubleshooting and correction procedures inherent in gas nailers.
Problem
(Combustion section )
No combustion
occurs. The Piston [39] is lowered.
The outside air temperature
and the altitude are out of the
specifications.
No fuel is fed.
The Pushing Lever [64]
cannot be pushed up.
<Electric section>
The battery indicator light
does not light.
The Motor [6] does not
rotate.
Possible cause
Inspection method
Check the position of the
Piston [39].
Check the outside air
temperature and the altitude.
Check that the fuel cell is set
properly.
Short of fuel in the fuel cell.
The metering valve is not set
properly to the fuel cell.
The Cell Lever [105] is
deformed.
The Adapter [30] is damaged.
The Pushing Lever [64] is
deformed.
Pushing Lever Arms (A) [60]
and (B) [62] are deformed.
The O-ring [15] is pinched.
It automatically turns off if it is
left with the Battery [111] set
(for Europe).
Low voltage.
The Battery [111] is not set
properly.
The Battery [111] is faulty.
The battery indicator light
lights red.
Connection failure between
Internal Wire (A) [86] and the
Controller [101].
Connection failure between
Internal Wire (A) [86] and the
Motor [6].
Break in Internal Wire (A)
[86].
The fan switch is faulty.
The Switch Arm [82] is
deformed.
The Switch Arm [82] is
deformed.
The Motor [6] is damaged.
--- 19 ---
Remedy
Return the Piston [39] to the
uppermost position with a
flat-blade screwdriver.
Keep depressing the Trigger
[98] securely until the
nailing operation is
completed.
Outside air temperature
range: 0ûC to 40ûC
Altitude: Under 1500 m
(5000 feet)
Set the fuel cell properly
(Fig. 14).
Replace the fuel cell.
Set the metering valve to
the fuel cell properly (Fig.
15).
Replace the Cell Lever
[105].
The Adapter [30] is
damaged.
Replace the Pushing Lever
[64].
Replace Pushing Lever
Arms (A) [60] and (B) [62].
Mount the O-ring [15]
properly.
Remove the Battery [111]
and set it again.
Perform charging.
Set the Battery [111]
properly.
Replace the Battery [111].
Charge the Battery [111].
Connect properly (Fig. 16).
Connect properly (Fig. 17).
Replace Internal Wire (A)
[86].
Replace Internal Wire (A)
[86].
Replace the Switch Arm
[82].
Replace the Switch Arm
[82].
Replace the Motor [6].