94
10. CAUTIONS FOR A LONG TERM OPERATION SUSPENSION
① If the compressor is not to be used for a week or
more, be sure to press the UNLOAD STOP button
on the instrument panel.
The compressor then unloads for 5 minutes and
automatically stops when the airend and the piping
are dry.
② To prevent the inside of airend from rusting, press
the UNLOAD STOP button and dry the compressor
for 5 - 10 minutes a week.
③ Be sure to turn off the power if the compressor is
not to be used for an extended period of time.
● If the air compressor is stops for a week or more without taking action described in this page, serious
damage for the airend may occur due to the lack of lubrication or airend internal rusting.
● Use unload stop button not only for long operation suspension but also for daily operation to prevent
the airend from the rusting.
● If the air compressor can’t be operated weekly, rust prevented action and periodical inspection is
required. Contact the local HITACHI distributor/master dealer or representative office for the detail.
If unloading is executed before the compressor is stopped,
moisture will be removed from the second-stage air end.
To prevent the second-stage air end from rusting during a
long-time suspension, it is effective to dry the inside of
the air end before stopping the compressor..
UP/
DOWN
＋／−
AUTO
MONITOR
MENU
SET
SELECT/WIDE
2
RUNNINGCONTROL
START
REMOTE
1
FUNC
［×10h］
ALARM
STR
REMOTE
RUNNINGMODE
AUTOSTART
POWER
LOAD
RESET
SHUTDOWN
STOP
MONITOR
UNLOAD STOP button
UNLOAD STOP
■ How to perform the unload stop action with
lead-lag or multi unit control operation (option)
Unload stop button is ineffective when the operation
mode setting is NOT “Single”. Refer to the page 21
for the detail. Deactivate the lead-lag or multi unit
control at once and perform unload stop. When the
air compressor is restarted, set the operation setting
to required mode.
CAUTION
IMPORTANT
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