7. MAINTENANCE AND INSPECTION
Periodically inspect the inverter as described in the following table to
prevent accidents and to ensure high performance with high-reliability.
LocationtoCheck CheckFor Solution
ITerminals, unit Connection hardware is =roperly seat andtighten
"nountingbolts, properly seated and lardware.
etc. securely tightened.
Cooling fins Built up dust, dirt, and debris Blowwith dry compressed air :
39.2 x 104to 58.8 x 104 Pa,
57 to 85 psi (4 to 6kg / cm2)
pressure
Printedcircuit Accumulationof conductive Blowwith dry compressed air :
board material oroil mist i39.2 x 104 to 58.8 x 104pa,
57 to 85 psi (4 to 6kg / cm2 )
xessure
Ifdust or oil cannot be
removed,replace the inverter
unit.
Power elements Abnormalodor or Replace the inverter unit.
and smoothing discoloration
capacitor
59
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