ELECTROBAR Elite Conductor Bar Technical Manual
July 2022
Page 33
4.
Monitoring of trolleys
Replace Elite trolleys every 10,000 km approximately (trolleys, 4 to 6 casters, or every 3,000 km approximately for
trolleys with 2 casters – these values may be reduced according to the operating speed and the driving
conditions), or in the event of excessive wear of the driving rings, chains, the central section of the trolley casing, or
the casters. Ensure the safety pins are present when mounting.
Remove dust from the trolley sides to preserve the insulation performance.
Check particularly the following points:
•
Absence of excessive play of caster axle
•
Absence of excessive lateral play
•
Absence of wear of guiding sides
•
Free rotation of casters
Check the wear of the brushes periodically using the wear indicator etched on the body of the trolley. The brushes
can be replaced easily with no intervention on wiring required. A simple screwdriver only is necessary. An indicator
showing the maximum wear tolerance is etched on the body of the trolley. Check the play and wear of the rollers.
5.
Maintenance of circuit interruptions and transfer elements
Using insulation controller, check circuit interruption and transfer elements under voltage higher than the rated
voltage.
Check absence of wear of transfer elements guiding sides.
