Section6: Makingadjustments - Cub Cadet 999 Operator's Manual

21" self-propelled mower
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NOTE: The chute door has been designed to move the
starter rope out of the way of the bag when the chute
door is opened.
61
Figure 9
Emptying the GrassBag
While holding the grass bag by both the rear handle
and the lower handle, lift the grass bag straight up
off the adapter. The chute door will move the rope
out of the way of the bag.
Continue to hold the lower handle and raise the
rear of the grass bag up toward your chest. The
grass bag will open and the grass clippings will
disperse.
When replacing the grass bag, be sure the top of
the bag rests on the wire support between the
handles.
Attaching SideDischarge Chute
Remove mulching baffle or grass bag adapter from
unit by disconnecting wing nuts.
Attach side discharge chute to unit and secure with
the three wing nuts. See Figure 10.
Side Discharge
Chut X
Figure 10
SECTION6: MAKINGADJUSTMENTS
,_
WARNING:
Do not at any time make any
adjustments without first stopping engine
and disconnecting spark plug wire.
Engine Adjustments
See the separate engine manual packed with your unit
for adjustments to the engine.
Cutting HeightAdjustment
Your mower is shipped with the cutting height in the
lowest position. The rear wheel cutting height
adjustment lever is located above the left rear wheel.
To adjust the cutting height, pull the lever out and away
from the mower and then move it forward or backward
to select a new cutting height. See Figure 11.
The front wheel cutting height is determine by the
selection of one of six positions in each caster
assembly. To adjust, remove the wing nut from the axle
bolt. Slide the axle bolt and spring washer from the
assembly and select a cutting height. With the spring
washer on the axle bolt, reinsert hardware in the square
hole desired through the wheel assembly and secure
with the wing nut previously removed.
IMPORTANT:All wheels must be placed in the same
relative position. For rough or uneven lawns, raise the
cutting height of your mower.
11
Caster
Locks
Rear Wheel Cutting
Height Adjustment
Figure 11
CasterLock Adjustment
The casters can be locked in a straight ahead position
or position to swivel freely. See Figure 11.
Lift and place the lock pins in the larger holes to
lock the wheels for straight ahead operation.
Place pins in smaller holes to allow casters to rotate
freely for turning.

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