89
Maintenance and Service
5.7
Scrubbing unit
The scrubbing unit (Fig. 30/1)
may only be disassembled and
assembled by properly trained
service personnel.
The brushes, part of the scrubbing unit,
are not contained in the scope of deliv-
ery. Select the brushes according to
your needs and install them on the
brush head (Fig. 30/2) according to the
instructions, refer to Section 2.3.1.
5.7.1 Changing the brushes
• Check the brushes on the brush
head weekly for signs of wear.
• When the brushes have worn to a
bristle length of 1.5 cm, the brushes
must be replaced, refer to Sec-
tion 2.3.1.
Before working on the brushes,
switch off the scrubbing unit,
turn the key switch to position 0
and remove the key.
Fig. 30
2
1
