Poly bed 4 x 2 drive system – Cub Cadet 4 x 2 Big Country - Poly Bed & Steel Bed User Manual
Page 18
Poly Bed 4 X 2 Drive System
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5.19. Inspect the belt and clutches (pulleys) for obvi-
ous damage and wear: See Figure 5.19.
•
The belt should measure at least.827” (21 mm)
across the outside (wide) surface (service limit).
If it measures less than this it is worn, and
should be replaced.
•
New belts should measure .906” (23 mm).
•
Confirm that the correct belt is on the vehicle:
Cub Cadet Part # 754-04054.
•
The arrow printed on the belt should point in the
direction of the belts rotation.
5.20. With the transaxle in neutral, it should be possi-
ble to rotate the driven pulley (on the transaxle)
without applying a force of more than 20 in-lbs.
(2.26 Nm) to the driving pulley (on the engine).
See Figure 5.20.
•
A torque wrench with a 13 mm socket on it
should read less than 20 in.-lbs.(2.26 Nm) while
rotating the input shaft. The belt should slip eas-
ily on the driving pulley.
•
If this figure is exceeded, remove the belt and
repeat the test. This will confirm if the bind is
internal or external.
•
If the problem is internal, examine the transaxle,
if the problem is external, examine the CVT.
•
If there is excessive drag, and the outer sheave
of the driving pulley is fully retracted, there may
be an alignment or spacing problem between the
crankshaft of the engine and the input shaft of
the transaxle. If there is an alignment problem,
it may be indicated by asymmetric wear on the
belt.
5.21. The distance between the centerline of the
crankshaft and the centerline of the input shaft
should be 9.41” (23.9 cm). The two shafts must
be parallel in vertical and horizontal axis.
NOTE: As a practical matter, this is a difficult
measurement to make without specialized fix-
tures. A combination of measurement, adjust-
ment, and experimentation may be necessary in
the field.
5.22. To check the performance of the CVT, install the
exhaust pipe, but leave the CVT exposed for
observation.
5.23. Connect a tachometer to the engine.
5.24. With the vehicle in neutral, insure that no unsafe
conditions will arise from starting the engine.
NOTE: Perform the following procedure with all
due caution to ensure that no foreign objects,
including the technician, come into contact with
rotating components.
Figure 5.19
21 mm min.
Figure 5.20
20 in-lbs to rotate here