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4 Service
All work inside the A75D(E) should be performed by a qualified electrician. La Marche is not responsible for any
damages caused by an unqualified technician.
4.1
Performing Routine Maintenance
In order for the A75D(E) to continue to operate properly it must undergo routine maintenance. The
recommended maintenance schedule is listed below
Yearly
1. Blow out rectifier/inverter with a low-pressure air hose.
2. Make sure all connections are tight.
3. Perform a visual check on all internal components.
4. Check front panel meters and alarms for accuracy.
4th Year
REPEAT
ABOVE WITH THE ADDITION OF:
1. Check relay contacts for pitting or corrosion.
2. Check capacitors for leakage.
7th Year
REPEAT
ALL, WITH THE ADDITION OF:
1. Filter and resonating capacitors should be replaced.
10th Year
REPEAT
ALL, WITH THE ADDITION OF:
(Except replacing capacitors they should be replaced every 7 years)
1. Check magnetics, components and wiring for signs of excessive heat.
