Main Broom System 168Service Manual – SW4000
Troubleshooting
Trouble Possible causes Remedy
The main broom does not
work and the warning light
(76) ashes.
The safety system has activated. Turn off the machine and then turn it on again.
Check the condition of the main broom (debris
that slows down the broom or excessive
pressure on the ground).
The fuse (FA) is open. Wait for the main broom motor to cool down,
then replace the fuse.
The electromagnetic switch (ES1) is not efcient Replace
The driving belt is misadjusted/damaged/broken Tighten/replace
The motor (M4) is faulty Check the motor amperage/replace
The sensor is misadjusted or broken Adjust/replace
The main broom has not been properly adjusted in height/
parallelism
Adjust
The main broom does not
clean properly
The main broom is too worn out Replace
The skirts are misadjusted or damaged Adjust/replace
The gas springs are damaged or without pressure Replace
The main broom jumps or
vibrates
The gas springs are damaged Replace
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