Maintenance
Instruction handbook BUM 60 / BUS 60
Document No.: 5.01032.05
63
9
m
Solenoid switch and relay in the power supply circuit
Check points
Methods and criteria
Inspection intervals
Daily
Semi-
annu-
ally
Annu-
ally
Are there any loose screws?
Visual and audio check Tighten screws, if necessary.
O
Do the switches function correctly?
Visual inspection
O
m
Plug connectors in the power supply circuit
Check points
Methods and criteria
Inspection intervals
Daily
Semi-
annu-
ally
Annu-
ally
Are there any loose screws or connectors?
Tighten screws and firmly stick in plug connector.
O
Are there any noticeable odors or color
changes?
Visual inspection and odor check
O
Is there any cracking, damage, deformation or
corrosion?
Visual inspection
O
Is there any leaking fluid or deformation of the
capacitors?
Visual inspection
O
m
Cooling system fans
Check points
Methods and criteria
Inspection intervals
Daily
Semi-
annu-
ally
Annu-
ally
Are there any abnormal noises or vibrations?
Visual and audio check
O
Are there any loose screws?
Tighten the screws.
O
m
Cooling system ventilation duct
Check points
Methods and criteria
Inspection intervals
Daily
Semi-
annu-
ally
Annu-
ally
Are there any obstructions in the heat sink, air
supply or air outlet?
Visual inspection
O