Inspection And Maintenance - Hitachi nr 90ae (t1) Handling Instructions Manual

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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.
NOTE
○ 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 confi rm the
amount of remaining nails. On the other hand, all nails
should be removed after using this nailer.
○ Always handle nails and package carefully. If nails are
dropped, collating bond may be broken.
○ After nailing:
(1) disconnect air hose from the nailer;
(2) remove all nails from the nailer;
(3) supply 5 – 10 drops of Hitachi pneumatic tool
lubricant into the air plug on the nailer; and
(4) open the petcock on the air compressor tank to
drain any moisture.
○ Under low temperature conditions, the machine
sometimes does not operate correctly. Always operate
the machine at the appropriate ambient temperature.
2. Adjusting the nailing depth (See Fig. 5)
To assure that each nail penetrates to the same depth,
be sure that:
(1) the air pressure to the Nailer remains constant
(regulator is installed and working properly), and
(2) the Nailer is always held fi rmly against the workpiece.
If nails are driven too deep or shallow into the workpiece,
adjust the nailing depth in the following order.
1 Disconnect air hose from nailer.
2 If nails are driven too deep, turn the adjuster to the
shallow side.
If nails are driven too shallow, turn the adjuster to
the deep side.
3 Stop turning the adjuster when a suitable position is
reached for a nailing test.
4 Connect the air hose.
Always wear eye protection.
Perform a nailing test.
5 Disconnect air hose from nailer.
6 Choose a suitable position for the adjuster.
3. Using the nose cap (See Fig. 6)
CAUTION
When detaching or attaching the nose cap, be sure to
remove your fi nger from the trigger and disconnect the
air hose from the nailer.
The nose cap is attached to the push lever tip to protect
the workpiece from scratches or damage. Remove in
the order shown below when not using.
(1) DISCONNECT AIR HOSE FROM NAILER.
(2) Pull out the nose cap in the direction of the arrow as
shown in the diagram.
○ Attach to the tip of the push lever in the reverse order of
detaching.

INSPECTION AND MAINTENANCE

CAUTION
Be sure to disconnect the hose during cleaning jams,
inspection, maintenance and cleaning.
1. Inspecting the magazine
Clean the magazine. Remove paper chips or wooden
chips which may have accumulated in the magazine.
Lubricate it with Hitachi pneumatic tool lubricant.
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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 equipment
with loose screws untightened will incur a hazard.
3. Inspecting the push lever
Check if the push lever (Fig. 1) 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
○ When not in use for an extended period, apply a thin
coat of the lubricant to the steel parts to avoid rust.
○ Do not store the Nailer in a cold weather environment.
Keep the Nailer in a warm area.
○ When not in use, the Nailer should be stored in a warm
and dry place.
Keep out of reach of children.
5. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
CAUTION
Repair, modifi cation and inspection of Hitachi Power
Tools must be carried out by a Hitachi Authorized
Service Center.
This Parts List will be helpful if presented with the tool to
the Hitachi Authorized Service Center when requesting
repair or other maintenance.
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
COMPRESSOR
CAUTION
When the maximum, operating pressure of the air
compressor exceeds 8.3 bar, be sure to provide a
reducing valve between the air compressor and nailer.
Then, adjust the air pressure within the operating range
of 4.9 - 8.3 bar. If the air set is installed, lubrication is
also possible, thus providing additional convenience.
OILER-FILTER-REDUCING VALVE (Air Set)
So that the equipment can be operated under an
optimum condition to ensure extended service life, it is
recommended to use an oiler fi lter reducing valve. Please
limit the length of the hose between the unit and the air set
to within 10m when using. (Fig. 7)
APPLICABLE LUBRICANTS
Type of lubricant
Recommended oil
Motor oil
Turbine oil
Name of lubricant
SHELL TONNA
SAE10W, SAE20W
ISO VG32 – 68
(#90 – #180)