31
Maintenance and Service
5.6.1 Cleaning the brush space
The brush space with rotary brush
(Fi
g. 9/1) and gaskets (Fig. 9/4) must
be checked daily for signs of dirt and
cleaned, if necessary.
5.6.2 Changing the rotary brush
The rotary brush (Fig. 9/1) must be
checked
weekly and changed in the
case of wear.
1. Switch the machine off and lay it on
its side.
2. Loosen the six fillister head screws
(Fig. 9/2) in the rotary brush and re-
move the two roller segments.
3. Install the two new roller segments
and
fix in place with the fillister head
screws.
4. After changing the rotary brush, re-
adjust the sweeping pattern as nec-
essary.
5.6.3 Setting the sweeping pattern
In the case of brush wear, and after
chan
ging the rotary brush (Fig. 9/1), re-
adjust the sweeping pattern.
1. Switch the machine off, unscrew the
locking bolt (Fig. 9/8) and open the
hood (Fig. 9/7).
2. Loosen the wing nut on the adjusting
leve
r (Fig. 9/5) and adjust the
sweeping pattern using the adjusting
lever by pi
voting it up and down until
it touches the floor.
3. Tighten the wing nut again and close
th
e hood.
4. Switch the machine on and allow the
rota
ry brush to run while standing
still for a short time.
5. Switch the machine off, raise the
fron
t a little and pull it back.
6. When adjusted correctly, there must
be an approx. 50 mm wide sweeping
pattern on the floor which has paral-
lel sides.
7. Repeat the process, if necessary,
until the swee
ping pattern is set cor-
rectly.
8. Close the hood (Fig. 9/7) and screw
the locking bolt (Fig. 9/8) back in.
5.6.4 Changing the sealing strips
The four sealing strips (Fig. 9/4) must
be checked weekly and changed in the
case of wear.
1. Switch the machine off and lay it on
its
side.
2. Remove all four sealing strips
(Fig. 9/2) with holders.
3. Loosen the screws in the holders
and
remove the damaged sealing
strips.
4. Fix the new sealing strips on the
h
olders and reinstall them.
5. Adjust the sealing strips so that they
touch the floor lightly.
5.6.5 Changing the timing belt
The timing belt (Fig. 9/6) must be
ch
ecked every 500 operating hours and
changed in the event of wear.
1. Switch the machine off, unscrew the
locking bolt (Fig. 9/8) and open the
hood (Fig. 9/7).
2. Slacken the timing belt (Fig. 9/6) us-
ing the tension pulley and remove
th
e belt.
3. Slacken the tension pulley and install
the
new timing belt. The timing belt is
automatically tensioned by means of
a tension spring.
4. Close the hood (Fig. 9/7) and screw
the locking bolt (Fig. 9/8) back in.
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