7.4.3 Bumping Wheel
Check (to perform every 150h)
The bumping wheel must be free to
rotate and its diameter must not be too
small due to wear. A bumping wheel in
poor condition can lead to cracking of
the brush base when working skimming
some obstacles (walls, shelving, etc).
If necessary, replace it.
7.4.3-111 Bumping Wheel
7.4.4 Brush Base
Check (to perform every 150h)
The brush base must be kept clean
and intact. A ruined brush base may
be dangerous to the machine and the
operator that uses it.
If necessary, replace it.
7.4.5 Lifting mechanism
Check (to perform every 150h)
The lifting mechanism should be clean
and lubricated. The lubrication of the
cables must be done with silicone spray,
it should not be used any grease or oil
to prevent that the dirt paste itself to
the classics lubricants, and lock the
mechanism. The lubrication of chains
must be done with lubricant grease.
7.4.6 Brush coupling flange
Check (to perform every 150h)
The brush coupling flange is of plastic
material and is not subject to partic-
ular wear. Like the other components
its cleanliness is essential to allow
the brush to engage and disengage
smoothly. ’It is also essential that the
brush locking spring has full function-
ality in order to keep the brush in the
correct position.
If necessary, replace it.
7.4.6-112 Flange
7.4.7 Fixing and adjustment
plate
Check (to perform every 150h)
The fixing plate must be in good condi-
tion, must not show signs of corrosion
or deformation. An incorrect fixing and
adjustment plate does not allow the
entire Mechanical Rubbing group to
work properly.
7.4.7-113 Plate
58
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