ABB RPB 320 Instruction Manual page 11

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The degree of utilization as well as exterior conditions influence the demand for
service of the power source to a high extent. Sensible use and preventive mainte-
nance will guarantee problem-free operation.
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Check the condition of the welding and return cable every day.
1RWH Never use damaged cables!
Make sure the connection cables conform to the regulations valid.
1RWH Repair and mounting of mains connection cables shall only be executed by
an authorized electrician.
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1RWH Unplug the cable from the wall socket and wait about 2 min. (due to capacitor
discharge) before removing the cover plate.
Check the following points at least once every six months:
• The electrical connections of the machine - clean oxidized components and
tighten loose parts.
1RWH Before the connection work is started, inform yourself about the right tight-
ening torques.
• Clean the inner parts of the power source from dust and filth, using a soft
brush and a vacuum cleaner.
1RWH Do not use compressed air as there is a risk that filth hereby can get packed
even harder in the apertures of the cooling profiles!
1RWH Do not use high-pressure washing!
1RWH Repair of the power source is only to be executed by an authorized electri-
cian.
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