Maintenance & Adjustment - Cub Cadet 221 LHP Operator's Manual

Maintenance & Adjustments
Adjustments
WARNING!
inspecting the snow thrower, disengage the auger
control. Stop the engine and remove the key to
prevent unintended starting.
Shave Plate
To check the adjustment of the shave plate, place the snow
thrower on a level surface. The wheels, shave plate and auger
should all contact the level surface. Note that if the shave plate is
adjusted too high, snow may blow under the housing. If the shave
plate wears out excessively, or the snow thrower does not self-
propel, the shave plate may be too low and needs to be adjusted.
NOTE: On new snow throwers or machines with a new shave
plate installed, the auger may be slightly off the ground.
To adjust the shave plate proceed as follows:
1. Run the snow thrower until the fuel tank is empty.
2. Pull the recoil starter handle until resistance is felt. Then tip
the snow thrower back until it rests on the handles.
3. Loosen the four flange lock nuts and carriage screws which
secure the shave plate to the housing. See Fig. 6-1. Move
the shave plate to the desired position and retighten the
nuts and bolts securely.
Carriage Screw
Reversible Shave Plate
4. Tip the snow thrower back to the operating position and pull
the starter handle a few times to see if it is difficult to pull.
5. If the starter is difficult to pull, remove the spark plug and
pull the handle several times to ensure that any oil trapped
in the head is removed.
CAUTION:
when it is removed and the starter handle is pulled.
6. Inspect the spark plug. If it is wet, clean off any oil before
re-installing.
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Before servicing, repairing or
Side View
Flange Lock Nut
Figure 6-1
Oil may come out of the spark plug hole
Control Cable
As a result of both the control cable and the auger drive belt
stretching due to wear, periodic adjustments may be necessary. If
the auger seems to hesitate when rotating, proceed as follows:
The upper hole in the control handle provides for an adjustment
in cable tension. To adjust, disconnect the end of control cable
from the bottom hole in the control handle and reinsert it in the
upper hole. Insert the cable from the outside as shown in Fig. 6-2.
Auger Control Handle
Control Cable
Figure 6-2
Test the snow thrower to see if there is a noticeable difference. If after
the adjustment to the control cable the auger still hesitates when
rotating, see the Service section for instructions on replacing the belt.
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