BR/BD 75/140 R, BR/BD 90/140 R
Troubleshooting
Page 59 / 71
New Unit Information 03.2004
Replace the brush rollers (BR version)
– Loosen the wing nut (1), remove the wing nut
(5) and pull off the cover (4).
– Pull the brush (2) out and check for wear, re-
place as necessary.
– Slide the new brush onto the drive shaft of the
motor and reinstall the cover (4).
1
2
3
4
5
Replace brush roller
Poor cleaning results
Brush head opened from the side
6
Replace drive belt (BR version)
– Loosen wing nut (1).
– Remove wing nut (5).
– Remove cover (4).
– Remove cover (6).
– Loosen the 4 retaining screws (10) on the
motor.
– Remove the drive belt (7).
– Install a new drive belt, increase the belt ten-
sion and tighten the retaining screws (10) on
the motor. The V-belt tension is determined by
the location of the Motor shaft (9).
7
9
10
8
1
Front wing nut
2
Brush roller
3
Holding arbor
4
Brush roller cover
5
Rear Wing nut
6
Drive belt cover
7
Drive belt
8
Brush roller drive gear
9
Motor shaft
10
Motor retaining screws (4x)
Brush head drive system
Note:
The drive belt (7) must be tightened so that
it only gives by 5 mm (0.19 in) max. if it is
pressed firmly with the thumb.
