Cub Cadet I-Beam Style - Manual (Page 143)

5-4
MODEL YEARS 1992 THROUGH 1996 900 SERIES MODELS
(Large Frame)
(Drive System Related Problems)
1. Stiff shifting from low speed to high speed and back.
a. There are (2) possible solutions to this problem. First check the drive clutch shaft assembly part no.
784-5563. Some were inadvertently painted with black powder paint instead of being phosphate
coated. The painting process increases the overall diameter of the shaft causing it to bind inside the
sliding linkage bracket assembly part no 784-5137. The drive clutch shaft assembly must be removed
and have the paint buffed off. The raw surface must be coated with a light film of lithium grease or an
equivalent substance.
NOTE: The bushings that are pressed into the ends of the sliding linkage bracket assembly sometimes collapse.
Open the I.D or inside diameter by running a round file around the opening. This will allow free movement
of the drive clutch shaft. The second thing you may want to look for is the friction wheel bearing part no.
741-0301 which is secured to the sliding linkage bracket assembly part no. 784-5137. The bearing assem-
bly may not have been centered when the transmission was assembled at the factory. Loosen the (3) 1/4"-
20 fasteners on the bearing housing and rotate the wheels several times. The bearing will center itself. It is
then very important that the service dealer or consumer sequentially tighten the 3 fasteners. This will
ensure that the bearing is centered on the hexagon shaft.
2. Difficulty in rolling the unit forward or backwards.
a. This problem is usually limited to new production however it is possible to surface on retailed units.
Check the alignment of all of the chains and sprockets within the transmission. Varying tolerances on
the sprockets can cause a misalignment condition whereby the alignment of the upper and lower
sprockets is off by a bit. The drive chains being much harder than the sprocket material will eventually
wear the sprocket down to a point where the unit will roll much easier. Also check the chain support
bracket part no. 05520 to make sure it is not warped at all. A slight bend in this component will defi-
nitely affect the rolling motion of the chains.
( Other Miscellaneous Problems)
3. Auger welds failing prematurely. This is generally caused by excessive loads or sudden impacts with ice
chunks or other hard pieces of debris.
a. The affected auger must be removed and re-welded and painted. If the flytes or spokes have been
damaged then the component must be replaced.
4. Auger gear boxes leaking oil.
a. This problem is generally encountered on units that are still at the retail level or have been in storage
at the customer’s home. The problem often looks a lot worse than it really is especially on units that
are still in the carton. During extended periods of storage either in a heated warehouse or during the
summer, the grease inside the gear box will separate and break down into a mixture of grease and oil.
A very minute amount of oil tends to seep out past the cork gasket. This is entirely normal and will not
harm the internal components in any way at all. Once the snow thrower is started and the augers are
engaged the grease and the oil will be thoroughly mixed once again. This problem will be rectified in
1997 because the gear boxes will now be sealed with Loctite Ultra Grey Sealer and the cork gasket
will be removed.
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