Maintenance; Assembling And Disassembling - WEG BFGC8 400 Instruction Manual

7. MAINTENANCE

The maintenance of flameproof motors is particularly important, as:
• Any changing to the bearings could:
• Concerning external ventilation, a fault in the cooling system raises the
surface temperature, which could reach values higher than those
established for the temperature class.
• The temperature class should be checked on the certification plate; this
indicates the maximum temperature as follows:
8.

ASSEMBLING AND DISASSEMBLING

- cause a sudden temperature rise, thus presenting a risk of explosion
- increase the clearance between the shaft and the bearing plate, due
to friction of the shaft on the closing plate; an internal ignition may
spread to the outside and can cause an explosion
T3 / 200ºC ; T4 / 135ºC ; T5 / 100ºC ; T6 / 85ºC
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