Inspection And Maintenance - Hitachi NR 90GC Instrucciones De Manejo

English
– Steady RED (except during operation): Malfunction
detected. Please take it to your authorized service
center.
Power saving mode
If the tool has not been used for about an one hour
with the battery still installed, Power saving mode
turns on to minimize unnecessary consumption of
battery power. Power saving mode is also activated
when the battery power is extremely low or there's
an abnormality in the machine so please pay attention
to the battery indicator light after deactivating Power
saving mode (by removing the battery and reinstall
it).
2. Insert fuel cell into the tool
(1) Pulling the latch and open the cell cover (See Fig. 6).
(2) Insert the fuel cell into the tool (See Fig. 7).
(3) Insert the stem of fuel cell into the hole of adaptor
(See Fig. 8).
(4) Close the cell cover.
3. Load nails
(1) Insert nail strip into rear of magazine (See Fig. 9).
(2) Slide the nail strip forward in the magazine (See Fig. 10).
(3) Pull the nail feeder (B) back to engage the feeder knob
to the nail strip (See Fig. 11).
NOTE
Use nail strip of more than 10 nails.
The Nailer is now ready to operate.
Removing the nails:
1 Pull the feeder knob backward (See Fig. 12).
2 Return the feeder knob forward quietly while pushing
the nail feeder (B).
3 Pull out nails from the back of the magazine (See Fig.
13).
CAUTION
To prevent unintentional operation, never touch the
trigger or place the top end of the push lever on a
work bench on floor. Also, never face the nail outlet
toward any part of a person.
HOW TO USE THE NAILER
CAUTION
Never use the top cover or housing of this device as a
hammer.
Take precautions to ensure the safety of persons in
the vicinity during operation.
Squeeze the trigger when drive a nail, otherwise the
piston can not return correctly.
Make sure the nailing depth when the temperature is
above 30°C or below 10°C.
1. Nailing procedures
This power tool is equipped with a FULL SEQUENTIAL
ACTUATION MECHANISM.
(1) Intermittent nailing
Depress the nail outlet onto the desired point; then pull
the trigger to drive a nail in a single shot (See Fig. 14).
After nailing once, nailing will not be possible again
until the trigger is released and pressed again.
(2) Push lever
When depressing the nail outlet, be sure to fully lift
the push lever (See Fig. 14) to release the safety lock.
11
Thus, nails cannot be driven without releasing the
safety lock even though the trigger is pulled.
The machine employs a preventive mechanism for
unloaded operation.
The machine enters a state where the push lever
cannot be pushed up. This takes place when the
magazine is not loaded with nails or when the
remaining number of nails becomes less than 8 or 9.
CAUTION
Exercise care when nailing corners of lumber. When
continuous nailing corners of lumber, a nail may go
astray or break through the corner.
Do not drive a nail on another nail.
Do not drive a nail on metal parts.
Use caution not to throw the push lever tip onto wood
when the push lever cannot be pushed up.
NOTE
Under low temperature conditions, the tool
sometimes does not operate correctly. Always operate
the tool at the appropriate ambient temperature.
2. Adjusting the nailing depth (See Fig. 16, 17)
To assure that each nail penetrates to the same depth,
be sure that the tool is always held firmly against the
workpiece.
If nails are driven too deep or shallow into the
workpiece, adjust the nailing in the following order.
1 Remove the fuel cell and the battery from the tool
(See Fig. 15).
2 If nails are driven too deep, move the push lever
to forward (See Fig. 16).
If nails are driven too shallow, move the push lever
to backward (See Fig. 17).
3 Stop moving the push lever when a suitable
position is reached for a nailing test.
4 Connect the fuel cell and the battery to the tool.
ALWAYS WEAR EYE PROTECTOR.
Perform a nailing test.
5 Remove the fuel cell and the battery from the tool.
6 Choose a suitable position for the push lever.

INSPECTION AND MAINTENANCE

CAUTION
Be sure to remove the battery and fuel cell during
clearing jams, inspection, maintenance and cleaning.
1. Inspecting the magazine
1 DISCONNECT BATTERY and FUEL CELL.
2 Clean the magazine. Remove paper chips or wooden
chips which may have accumulated in the magazine.
Lubricate it with Hitachi gas strip nailer lubricant.
2. Check on mounting screws for each part
At regular intervals check every part for loose mounting
screws. Retighten any loose screws. Operating the
equipment with loose screws untightened will incur
a hazard.
3. Inspecting the push lever
Check if the push lever can slide smoothly.
Clean up the sliding area of the push lever and use the
provided oil for lubrication from time to time.
Lubrication enables smooth sliding and simultaneously
serves to prevent the formation of rust.
4. Storing (See page 8)
When not in use for an extended period, apply a thin
coat of the lubricant to the steel parts to avoid rust.