Models 643 & 663
16
19
16
21
22
23
24
IMPORTANT: For a proper working machine, use Factory
Approved Parts.
V-BELTS are specially designed to engage and disengage
safely. A substitute (non OEM) V-Belt can be dangerous by
not disengaging completely
26
27
36
11
12
16
15
19
16
20
3
4
8
9
4
7
10
6
5
13
14
17
18
32
22
1
2
31
33
28
29
30
25
34
35