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SECONDARY SHEAVE
DISASSEMBLY
WARNING
• Use extreme CAUTION when disassembling
the secondary sheave since serious injury
can occur due to the sudden release of spring
tension. Use the sheave compressor to con-
tain the spring tension before removing the
spring seat nuts.
• Do not attempt this procedure unless you
have the proper tools and understand the
instructions thoroughly.
INSPECTION
1. Inspect:
• Sliding sheave
• Fixed sheave
• Spring seat
Cracks/damage → Replace.
• Stopper
Wear/damage → Replace.
2. Inspect:
• Bushing (spring seat) 1
• Sliding sheave (V-belt contact surface) 2
Scratches/wear/damage → Replace.
• Sliding bushing 3
Unsymmetrical wear/damage → Replace.
3. Inspect:
• Secondary sheave spring 1
Cracks/damage → Replace.
4. Measure:
• Secondary sheave spring (standard) free
length a
Below specification → Replace the secondary
sheave spring.
Secondary sheave spring (standard)
free length:
75.0 mm (2.95 in)
4-13
POWR
TR
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Table of Contents
Troubleshooting
