Hitachi HARC-BX E Manuel D'installation page 20

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MAINTENANCE AND SERVICE
6 18
6.3. Periodical Inspection
The unit should be periodically inspected in order to ensure dependable performance and
long life operation.
1. Ambient Conditions:
Inspect that the internal temperature of cabinet panel is not abnormally too high.
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Inspect that the temperature of unit case is not abnormally too high.
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Inspect and remove any dusts, fine metal powder and lubrication.
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2. Displays:
Check that power supply display LED (PWR) is lit.
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Check that transmission display LED (H-L,LON) shows ON/OFF.
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Check if 7-segment shows other digits other than "
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3. Mounting and connected Part:
Check to ensure that the mounting screws, power supply, transmission cable screws
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are tightened firmly.
Check to ensure that the other screws are tightened firmly.
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WARNING:
Do not use the cleaning agent containing acid compound such as thinner for
cleaning. If used, it may cause of discoloration of the coating surface and melting of
plastic case.
".