Yamaha YFM660FS, Supplementary Service Manual

Page: 272 / 478

4 - 59
ENG
PRIMARY AND SECONDARY SHEAVES
INSTALLING THE PRIMARY AND
SECONDARY SHEAVES
1.Install:
●
Secondary sheave assembly
●
V-belt
●
Primary sheave assembly
NOTE:
●
Tightening the bolts
1
will push the second-
ary sliding sheave away, causing the gap
between the secondary fixed and sliding
sheaves to widen.
●
Install the V-belt so that its arrow faces the
direction show in the illustration.
2.Tighten:
●
Nut (primary sheave)
1
●
Nut (secondary sheave)
2
NOTE:
●
Use the sheave holder
3
to hold the primary
sheave.
●
First, tighten the nut (primary sheave)
1
,
then tighten the nut (secondary sheave)
2
.
Sheave holder:
P/N. YU-01880, 90890-01701
T
R
.
.
100 Nm (10.0 m • kg, 72 ft • lb)
T
R
.
.
120 Nm (12.0 m • kg, 85 ft • lb)