Cub Cadet 6X4 Shop Handbook page 51

3. Check the forward / reverse shift yoke (fork) and
shift collar groove for wear:
3a. Check the thickness of the shift yoke pad
that contacts the shift collar using a
micrometer (preferably) or calipers.
See Figure 2.110.
Figure 2.110
• The minimum pad thickness on the shift yoke
that moves the forward / reverse shift collar
should be .230" (5.842mm). If it is worn further
there is some chance that the case hardening
will soon be worn through.
3b. Check the forward / reverse shift collar
groove for wear: Use a .035" (.889mm)
feeler-gauge as a go / no-go tool. If the
feeler gauge can be inserted to the base
of the groove in the shift collar, and the
shift yoke is good, replace the shift collar.
See Figure 2.111.
Checking F-N-R
shift collar
Figure 2.111
Chapter 2- Drive System: CVT and Transfer Case
Checking F-N-R
shift yoke
47
3c. Inspect the shift shaft for wear on the mat-
ing and seal surfaces.
3d. Check that the snap rings are seated in
their grooves. If removed, replace the
snap rings with new ones.
NOTE: if the shift yoke and collar show wear
from a constant thrust load on the shift shaft
(wear, scoring, or discoloration) the cause of the
damage must be corrected. It may be a operator
abuse by applying force to the Hurst gear selec-
tor while the vehicle is in motion, or it may be an
issue with the linkage.
4. Check the low gear shift yoke (fork) and shift col-
lar groove for wear:
4a. Check the thickness of the shift yoke pad
that contacts the shift collar using a
micrometer (preferably) or calipers.
See Figure 2.112.
Checking low-range shift yoke
Figure 2.112
• The minimum pad thickness on the shift yoke
that moves the forward / reverse shift collar
should be .2225" (5.715mm). If it is worn further
there is some chance that the case hardening
will soon be worn through.