Maintenance And Inspection - Hitachi NR 1890DBCL Handling Instructions Manual

To continue nailing in a separate location, move the nailer
along the wood, repeating steps 2 - 5 as required.
NOTE
Operations 3 and 4 should be done within 2 seconds
of each other. If more than 2 seconds pass after 3, the
Nailer will not work properly. If this happens, retry from
3.
(2) Continuous operation (Push lever fi re)
Using CONTACT ACTUATION MECHANISM (See
Fig. 14)
WARNING
To avoid double fi ring or accidental fi ring due to recoil.
1) Do not press the nailer against the wood with
excessive force.
2) Separate the nailer from the wood as it recoils after
nailing.
1 Set the nailing operation switch to CONTACT
ACTUATION MECHANISM (Nailing operation indicator
is blink in blue.)
(to set to CONTACT ACTUATION MECHANISM).
(Set the switching device to the nailing operation
indicator blink in blue completely as shown in the
Fig. 14. Otherwise, it will not operate properly.)
2 Pull the trigger with the Nailer off the workpiece.
3 Depress the push lever against the workpiece to drive a
nail.
4 Move the Nailer along the workpiece with a bouncing
motion.
Each depression of the push lever will drive a nail.
As soon as the desired number of nails have been driven,
remove fi nger from the trigger.
NOTE
Operations 2 and 3 should be done within 2 seconds
of each other. If more than 2 seconds pass after 2, the
Nailer will not work properly. If this happens, retry from
2.
WARNING
○ Keep your fi nger off the trigger except during nailing
operation, because serious injury could result if the push
lever accidentally contacts you or others in work area.
○ Keep hands and body away from the discharge area.
This Hitachi nailer may bounce from the recoil of driving
a nail and unwanted subsequent nail may be driven,
possibly causing injury.
NOTE
○ If all warnings and instructions are followed, safe
operation is possible with all two systems: FULL
SEQUENTIAL ACTUATION MECHANISM, CONTACT
ACTUATION MECHANISM.
○ Always handle nails and package carefully. If nails are
dropped, collating bond may be broken, which will cause
mis-feeding and jamming.
○ After nailing:
1) remove battery from the Nailer;
2) remove all nails from the Nailer;
2. Adjusting the nailing depth
To assure that each nail penetrates to the same depth,
be sure that the Nailer is always held fi rmly against the
workpiece.
If nails are driven too deep or shallow into the workpiece,
adjust the nailing in the following order.
1 Remove the battery from the Nailer. (See Fig. 15)
2 If nails are driven too deep, turn the adjuster to the
shallow side. (See Fig. 16)
Adjustments are in half-turn increments.
If nails are driven too shallow, turn the adjuster to the
deep side. (See Fig. 17)
3 Stop turning the adjuster when a suitable position is
reached for a nailing test.
4 Connect the battery to the Nailer.
ALWAYS WEAR SAFETY GLASSES.
WARNING
Safety glasses should not be inferior to the specifi cation
set in AS/NZS 1337 Eye protectors for industrial
applications.
Perform a nailing test.
5 Remove the battery from the Nailer.
6 Choose a suitable position for adjuster.
3. Using the hook (See Fig. 18, 19, 20)
WARNING
When using the hook, turn off the power switch (green
light "OFF"). Pay suffi cient attention so that the main
equipment does not fall.
If the tool falls, there is a risk of accident.
Hook can be installed on the left or right side.
1 Remove the battery, then remove all remaining nails
from the magazine.
2 Securely hold the main unit and remove the screw using
a screwdriver. (See Fig. 18)
3 Remove the hook and hook plate. (See Fig. 19)
4 Install the hook on the other side and securely fasten
with screw. (See Fig. 20)
NOTE
Hook can be used as a hanger.
4. Clearing a jam
If nails are jammed in fi ring head, remove it, and adjust
the nailing in the following order.
CAUTION
Remove the battery from the Nailer.
1 Remove the battery from the Nailer.
2 Remove all nails.
3 Remove the M5 bolts with wrench. (See Fig. 21, 22)
4 Pull magazine away from the fi ring head, and clear jam.
(See Fig. 22)
CAUTION
○ Make sure to review Fig. 21 and 22 to avoid loosening
the wrong screw.
○ NEVER hit the driver blade.
○ NEVER point the tool at yourself or another person, to
avoid risk of injury by mis-fi ring.
Even if the battery is removed from the nailer, there is still
energy of compressed air remaining inside.
5 Attach the magazine to the injector and tighten with the
M5 bolt.
NOTE
In case of frequent jam, contact a Hitachi authorized
service center.

MAINTENANCE AND INSPECTION

CAUTION
Be sure to remove all remaining fasteners and battery
from the nailer before maintenance and inspection.
1. Inspecting the magazine
1 Remove battery from the Nailer.
2 Clean the magazine. Remove dust and wooden
chips which may have accumulated in the magazine.
CAUTION
Check that the nail feeder slides smoothly by pulling it
with fi nger.
If not smooth, nails can be driven at an irregular angle
and hurt someone.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the power
tool. Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
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English