Maintenance; Periodical Inspection - ACP Speecon 7200M3 Manual

1.6 MAINTENANCE

1.6.1 Periodical Inspection

7200M3 requires very few routine checks .It will function longer if it is kept clean cool and dry, while
observing the precautions listed in "Location" (Par.1.3). Check for tightness of electrical connections,
discoloration or other signs of overheating. Use Table 1.7 as the inspection guide. Before servicing, turn
OFF AC main circuit power and be sure that CHARGE lamp is OFF.
Table 1.7 Periodical Inspections
Component
External
Terminals, Unit Loosened screws
Mounting Bolts,
Connectors, etc. Loosened connectors
Build-up of dust or dirt
Cooling Fins
Printed Circuit Accumulation of conductive dust
Board or oil mist
Abnormal noise or vibration.
Cooling Fan Whether the cumulative operation
time exceeds 20,000 hours or not
Accumulation of dust or dirt
Power Elements
Smoothing
Capacitor Discoloration or odour
Check Corrective Action
Tighten
Tighten
Blow with dry compressed air of 392 ×10³ to
588×10³ Pa[57 to 85 1bs.. in² (4 to 6 kg.
cm²)]pressure..
Clean the board.
If dust and oil cannot be removed, replace the
inverter unit
Replace the inverter unit.
Replace the inverter unit.
- - 28