Cub Cadet Challenger 500, Service Manual

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Engine
4 ‐ 42
Inspect the secondary shaft and driven
sprocket.

Gear teeth
Look for discoloration, pitting or
wear.

Gear movement
Look for smooth operation.

Circlips
Look for bends, looseness or
damage.

Chain
Look for cracks, stretch or wear.
Measure the shaft runout
Use a truing stand and a dial
gauge.
Shaft runout limit: 0.06 mm
Install

Assembling the shift fork
Guide bar (1)
Shift fork (2)
Long Spring (3)
Shift fork (4)
Short Spring (5)
Installing the transmission

Chain (1)

Drive shaft assembly (2)

Secondary Shaft (3)

Shift fork assembly (4)

Shift drum (5)

Low wheel gear
Note:
Oil each gear and bearing thoroughly.
Before assembling, be sure the
transmission is in neutral and that the
gears turn freely.