6.23
CLUTCHING
6
Belt Deflection Inspection
Belt deflection is critical for optimum belt performance and belt
life. It should be checked at 500 miles (800km) and then in 1000
mile (1600km) increments after that.
Too much belt deflection is when the belt is too long or the center
distance is too short. The initial starting ratio will be too high,
resulting in performance loss. This is due to the belt rising too
high in the drive clutch sheaves upon engagement (A).
Not enough belt deflection (B) is when the belt is too short or the
center distance is too long. The initial starting ratio will be too
low. In addition, the machine may creep when the engine idles,
causing damage to the internal face of the drive belt.
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