88
4741
5371
B, C
A
3
1
9
10
2
5466
3
1
2
Motor and motor control
Adjust drive belt tension if values exceed
those shown in the table.
Adjustments
Drive belt tension
The drive belt is pre-tensioned upon delivery
from the factory.
The drive belt tension should be as follows:
Model
Force A Post tensioning B New belt C
(N)
(mm)
(mm)
W465H*
30
9
8
W475H*
30
9
8
W465H**
30
8
7
W475H**
30
8
7
W4105H
40
9
8
W4130H
53
10
8
W4180H
68
10
8
W4240H
75
10
8
W4300H
78
10
8
* up to machine No.
** from machine No.
Model
Force A Post tensioning B New belt C
(N)
(mm)
(mm)
W475S/N
35
8
6
W485S/N
35
9
8
W4105S/N
40
8
7
W4130S/N
40
8
7
W4180S/N
60
9
7
W4250S/N
68
8
7
W4330S/N
45
8
6
Up to machine No.
-520/111627
520/111641-115133
520/115144-120398
520/120409-121020
To adjust drive belt tension, first undo the motor
retaining screw a couple of turns, then press
down on the motor to achieve proper tensioning.
Lock the locking nut when the tension is correct.
Then lock the retaining screw.
1. Locking nut
2. Adjusting screw
3. Retaining screw for drive belt tension
H – model
M and N – model
9
10
