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8-1
8. MAINTENANCE,
TROUBLESHOOTING
This chapter provides information necessary for keeping your unit in good working order
and remedying simple problems.
WARNING
Do not open the equipment.
Hazardous voltage which can
cause electrical shock exists
inside the equipment. Only
qualified personnel should
work inside the equipment.
8.1 Preventive Maintenance
Regular maintenance is important for optimum performance. A maintenance program
should be established and should at least include the items shown in the table below.
Maintenance program
Item Check point Remedy
Connectors of
processor unit and
control unit
Check for tight connection. Tighten loosened connectors.
Ground terminal
Check for tight connection and
corrosion.
Clean or replace ground wire as
necessary.