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4.
About the thermal protection
The thermal protection operates to stop the motor when a
problem such as a motor overload, etc. occurs.
If the motor stops during operating, reset by pushing the
Reset switch (Refer to Fig. 6).
If the motor does not start or if it stops immediately,
proceed as follows.
(1) Place the knob of the pressure switch in the "OFF"
positon and disconnect the plug from the receptacle
(Fig. 2).
(2) Check for the following possible causes fi rst: lack
of proper ventilation, or an outside-air or room
temperature that is too high.
(3) If the extension cord does not conform to the
specifi cations given on page 7 replace with an
extension cord such as that shown on page 7. If the
capacity of the power supply is insuffi cient, increase
the power supply capacity to remove the cause of a
fl ow of excessive current (over-current).
(4) Wait approximately 20 minutes.
(5) Start up. If the motor still stops during operation,
please contact the service center.
MAINTENANCE
WARNING
: Disconnect
the power source and remove the
compressed air from the air tank
before performing the maintenance
3.
Maintenance chart:
PROCEDURE
Drain condensation in air tank
Inspect guards/covers
Check for unusual noise/vibration
Check for air leaks
Clean exterior of compressor
Check safety valve
Clean intake fi lter/fi lter element
SERVICE AND REPAIRS
All quality compressors will eventually require servicing or
replacement of parts because of wear and tear from normal
use. To assure that only genuine replacement parts will be
used, all service and repairs must be performed by a HITACHI
AUTHORIZED SERVICE CENTER, only.
Reset switch
Protective breaker
Fig. 6
the
compressor
MAINTENANCE CHART
AFTER USE
×
1.
Draining tank
Drain tank daily or after 4 hours of use. Open drain cock
and tilt compressor to empty accumulated water (Refer
to Fig. 5). Tank pressure should be below 10 psi when
draining the tank.
2. Cleaning the intake fi lter
Open the intake fi lter (Refer to Fig. 1) once a week and
clean the inside of the intake fi lter and the fi lter element
with compressed air (Fig. 7).
(1) Removal
Turn the intake fi lter counter-clockwise until it stops
and then remove the intake fi lter and fi lter element.
(2) Installation
After inserting the fi lter element, match the grooves of
the intake fi lter with the three protrusions on the main
unit so that the hose points downward. Then, turn the
intake fi lter clockwise until it stops. (Refer to Fig. 7)
Check to see if the intake fi lter is loose. If the fi lter is
loose, remove and reinstall the fi lter.
WARNING
CAUTION: Do not operate without the intake fi lter.
Protrusions (× 3)
from
NOTE: Replace the fi lter element when it becomes dirty.
DAILY
×
×
×
×
×
NOTE: Specifi cations are subject to change without any
obligation on the part of the HITACHI.
— 12 —
operations. Allow
the
to
cool
before
performing
maintenance operations.
: Never clean fi lter element with a
fl ammable liquid or solvent.
Filter element
Intake fi lter
Fig. 7
WEEKLY
×
×
compressor
the
Grooves (× 3)
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