34 - Scrub System 70Service Manual – SC250, Scrubtec 334, MA 30
Removal and Installation
Driving Belt
Check
1. Remove the tank assembly from the machine.
2. Open the rear cover and remove the battery.
3. Remove the cylindrical brush.
4. Remove the 4 screws (A) and remove the
protective casing on the transmission (B).
5. Visually inspect the entire length of the belt (C)
to make sure it is intact and shows no signs of
cuts, tears or cracks; replace if necessary.
6. Check the tension of the belt (C) between motor
and brush using the TEN-SIT (D) device: When
deecting the centre of the belt (E), the tool
should measure a value of 69Hz ±10.
Belt tensioning
If necessary, tension the belt correctly (C).
7. Loosen the 3 screws (F) and adjust the position
of the motor and pulley (G) as necessary. Once
the correct tension of the belt has been applied,
tighten the 3 screws (F).
Figure 7
A
A
A
A
B
C
D
E
Figure 8
C
F
F
F
F
G
F
F
G
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