Inspection And Maintenance - Hitachi N 5024A2 Handling Manual

After stapling:
(1) disconnect air hose from the stapler;
(2) remove all staples from the stapler;
(3) supply 5 – 10 drops of Hitachi pneumatic tool
lubricant into the air plug on the stapler; 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. How to adjust the stapling depth
To assure that each staple penetrates to the same
depth, be sure that:
(1) the air pressure to the stapler remains constant
(regulator is installed and working properly), and
(2) the stapler is always held firmly against the workpiece.
If staples are driven too deep or shallow into the
workpiece, adjust the stapling in the following order.
(See Fig. 7)
1 DISCONNECT AIR HOSE.
2 If staples are driven too deep, turn the adjuster to
the shallow side.
If staples are driven too shallow, turn the adjuster
to the deep side.
3 Stop turning the adjuster when a suitable position
is reached for a stapling test.
4 Connect the air hose.
ALWAYS WEAR EYE PROTECTOR.
Perform a stapling test.
5 DISCONNECT AIR HOSE.
6 Choose a suitable position for the adjuster.
Adjuster
NOTE:
Please use the minimum air pressure that is sufficient
to drive the staples to a suitable depth. If an overly
high pressure is used, the life of the piston damper
etc. will be shortened.

INSPECTION AND MAINTENANCE

CAUTION:
Be sure to disconnect the hose during cleaning
jams, inspection, maintenance and cleaning.
1. Countermeasure for staple jamming
(1) Remove all staples.
(2) Release the lock lever and open the blade guide. (See
Fig. 8)
Disconnect air hose
Fig. 7
Blade Guide
(3) Remove the jammed staple with a slotted-head
screwdriver. (See Fig. 9)
(4) Close the blade guide and latch.
(5) In case of frequent jam, contact a Hitachi authorized
service center.
2. Inspection and maintenance
Periodically inspect the device.
(1) Remove the four hexagon socket hd. bolts securing
the exhaust cover and remove the exhaust cover.
Then, cylinder, piston, and other parts can be removed
in respective assembly groups.
Wipe the drive bit, the piston sliding part and the body
interior with a cloth to remove deposited dirt.
(2) Confirm that the piston damper offers normal
operation. A damaged piston damper may cause
damage to other component parts.
(3) Carefully check the O-ring for wear while
disassembling. A worn or damaged O-ring may
deteriorate overall performance. Replace a worn or
damaged O-ring with new one.
(4) Prior to reassembling the device, apply grease
(Attolub No. 2 Grease) to the O-ring. Also, lubricate
the device with the recommended oil.
3. 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.
4. 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.
Lock Lever
Disconnect air hose
Fig. 8
Fig. 9
6