Hitachi Koki NV 50AG2 Mode D'emploi page 10

English
(4) Closing the cover and nail guide.
Close the cover.
Place your finger on the nail guide and knob and push
the knob downward. While pressing down the linked
nails, completely close the nail guide (see Fig. 7).
This completes loading of nails.
CAUTION
To prevent unintentional operation, never touch the
trigger or place the top end of the push lever on a work
bench or floor. Also, never face the nail outlet toward
any of a person.
HOW TO USE THE NAILER
CAUTIONS
Never use the head or body of this nailer as a
hammer.
Take precautions to ensure the safety of persons in
the vicinity during operation.
1. Nailing procedures
(1) Method of intermittently driving nails (single shot)
The single-contact change lever is in the single shot
position (see Fig. 8).
This nailer includes a single shot structure to allow
driving of a single nail by z pushing down the push
lever and x pulling the trigger (see Fig. 9).
CAUTIONS
[Method of intermittently driving nails (single shot)]
explained here is not [Sequential fire]. When Single-
contact Change Lever is at the Single shot position, if
the push lever is pushed up in a state where the trigger
is pulled, only one piece of nail in the shooting muzzle
is fired: Be careful!
In the event it is used by Sequential fire, use the
Sequential Fire Parts Set of Optical Accessory.
If you do not pull the trigger quickly and crisply while
in the single shot mode, the nailer will bounce and
shoot several nails instead of just one. To avoid this,
be sure to pull the trigger quickly and crisply.
Push lever
When depressing the nail outlet, be sure to fully lift the
push lever (see Fig. 9) to release the safety lock. Thus,
nails cannot be driven without releasing the safety
lock even though the trigger is pulled.
(2) Method for consecutive driving of nails (contact drive)
The single-contact change lever is in the contact driv-
ing position (see Fig. 10).
Use the accessory hexagon bar wrench to turn the
single-contact change lever to the contact driving
position.
z First pull back the trigger. x Then press the nail
outlet on the workpiece. Driving of nails will start (Fig.
11).
CAUTION
Exercise care when nailing corners of lumber. When
consecutive nailing is carried out at corners of lumber,
a nail may go astray or break through the corner.
NOTES
Precautions on no-load operation
Sometimes nailing will continue after driving in all
nails previously contained in the magazine.
This is termed "no-load operation". Such operation
may deteriorate the bumper, magazine, and nail feeder.
To avoid no-load operation, occasionally confirm the
amount of remaining nails. On the other hand, all nails
should be removed after using this nailer.
9
After completing operation, put into the body about
2cc oil through the hose joint to protect the tool from
rust.
Under low temperature conditions, the machine
sometimes does not operate correctly. Always operate
the machine at the appropriate ambient temperature.
2. Adjusting the nail-driving depth
CAUTION
When making adjustments, be sure to remove your
finger from the trigger. When making adjustments, be
sure that the nail outlet is not facing downward and
that body parts or other persons are not in the path of
the nail outlet.
Adjusting the adjuster (Fig. 12)
Carry out test driving. If the nails are too deep, turn
the adjuster to the shallow side (
If the nail depth is too shallow, turn the adjuster to the
deep side ( mark) (see Fig. 12, 13).
The adjuster will move 0.5 mm by turning it one click
each.
NOTE
The nail-driving depth can also be adjusted by changing
the air pressure used. Carry this out together with
movement of the adjuster. Using a high air pressure
that does not match the nail-driving resistance will
shorten the service life of this nailer.
3. Changing the exhaust direction
The direction of the exhaust vent can be changed
within 360° by turning the top cover (Fig. 14).
4. How to cut off connected sheet
Tear off the output connected sheet in the direction of
the arrow when using the connected sheet nails (Fig.
15).
INSPECTION AND MAINTENANCE
CAUTION
Be sure to disconnect the hose during cleaning
jams, inspection, maintenance and cleaning.
1. Countermeasure for nail jamming
(1) Remove the nail roll from the magazine, open the nail
guide, insert a rod into the nail outlet and tap the rod
with a hammer (Fig. 16).
(2) Remove the jammed nail with slotted-head screw-
driver (Fig. 17).
(3) Cut off the defective part of the linking sheet with
cutting nippers, correct the deformation, then load the
nail roll in the magazine.
(4) In case of frequent jam, consult the Authorized Serv-
ice Center from which you bought this nailer.
2. Check on mounting screws for each part
At regular intervals check every part for loose
mounting screws and whether or not there are any
air leaks. Retighten any loose screws. Operating the
nailer with loose screws untightened will incur a
hazard.
3. Inspecting the push lever
Check if the push lever can slide smoothly (Fig. 18).
Clean up the sliding area of the push lever and use the
provided oil for lubrication from time to time. Lubri-
cation enables smooth sliding and simultaneously
serves to prevent the formation of rust.
mark).