Yamaha MBK X-MAX 300 2017, Service Manual

Page: 237 / 462

V-BELT AUTOMATIC TRANSMISSION
5-42
• Collar
Cracks/damage/wear
→
Replace the primary
sliding sheave, primary fixed sheave, and
collar as a set.
EAS30317
CHECKING THE PRIMARY SHEAVE
WEIGHTS
The following procedure applies to all of the pri-
mary sheave weights.
1. Check:
• Primary sheave weight
Cracks/damage/wear
→
Replace.
2. Measure:
• Primary sheave weight outside diameter “a”
Out of specification
→
Replace.
EAS31233
CHECKING THE PRIMARY SHEAVE
SLIDERS
1. Check:
• Primary sheave slider
Cracks/damage/wear
→
Replace.
EAS30319
CHECKING THE SECONDARY SHEAVE
1. Check:
• Secondary fixed sheave
• Secondary sliding sheave
Cracks/damage/wear
→
Replace the sec-
ondary fixed and sliding sheaves as a set.
2. Check:
• Torque cam groove “a”
Damage/wear
→
Replace the secondary
fixed and sliding sheaves as a set.
3. Check:
• Guide pins “1”
Damage/wear
→
Replace the secondary
fixed and sliding sheaves as a set.
4. Check:
• Spring free length
Out of specification
→
Replace the spring.
EAS30321
ASSEMBLING THE SECONDARY SHEAVE
1. Install:
• Bearing “1”
(into the secondary fixed sheave “2”)
2. Lubricate:
• Secondary sliding sheave inner surface
• Oil seals “1”
(with the recommended lubricant)
Weight outside diameter
23.0 mm (0.91 in)
Limit
22.5 mm (0.89 in)
Compression spring free length
111.0 mm (4.37 in)
Limit
99.9 mm (3.93 in)
Install depth “a”
1.0–2.0 mm (0.04–0.08 in)
a
1
a
1
2
New