Cub Cadet Challenger 550, Service Manual

Page: 121 / 255

4‐25
Engine
Install
1. Assembling the primary sheave

Clean the primary sliding
sheave face (1)

The primary fixed sheave face
(2)

The collar(3)

The weights (4)
Remove excess grease.
2. Install
• The weights(1)
Apply a small amount of grease to
the outer surface of the weights and
install. Apply grease to the inner
surface of the collar. Apply grease
to the inner surface of the primary
sliding sheave.
•
Spacer
•
Sliders(1)
•
Primary pulley cam(2)
3. Assembling the secondary sheave
• Apply assembly lube to
The secondary sliding
sheave (1) inner surface and
oil seals.
The bearings, oil seals and
inner surface of the
secondary fixed sheave.
• Install
Guide pins (1)
Spring seat
Compression spring
Spring seat
Nut
Attach the sheave fixed block,
Locknut wrench and sheave
spring compressor to the
secondary sheave assembly.
Place the sheave fixed block in
a vise and secure it.
Tighten the sheave spring
Compressor nut (1) and
compress the spring.