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Cub Cadet SC 621 User Manual

Cub Cadet SC 621
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12
SECTION 6: MAKING ADJUSTMENTS
WARNING: Do not at any time make any
adjustments without first stopping engine
and disconnecting spark plug wire.
Cutting Height Adjustment
Figure 12
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 12.
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. See Figure 12.
IMPORTANT:
All wheels must be placed in the same
relative position. For rough or uneven lawns, raise the
cutting height of your mower.
Caster Lock Adjustment
The casters can be locked in a straight ahead position
or position to swivel freely. See Figure 12.
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.
WARNING: When operating mower on
hills, front wheels should be locked in the
straight ahead position.
Handle Height Adjustment
Your mower is shipped with the handle in the higher
height position. To lower the height proceed as follows:
Remove the starter rope from the rope guide.
Remove the upper handle by removing the hand
knobs and carriage bolts. Lay the upper handle out
of the way, being careful not to bend or kink the
cables.
Remove the hairpin clips from the weld pins on the
handle brackets. Press out on the legs of the lower
handle. Remove lower handle from the mower.
Turn lower handle around so the notch on the
bottom of the lower handle is facing forward.
Reassemble, placing the bottom holes in the
handle over the weld pins in the handle mounting
bracket.See Figure 13.
Reassemble the upper handle to the lower handle.
Place the hairpin clips in the inner holes in the weld
pins and attach the starter rope as instructed in the
Assembly Section.
Figure 13
Drive Clutch Control Adjustment
The drive clutch control adjustment wheel is located in
the drive clutch control handle housing and is used to
tighten or loosen the drive belt. You will have to adjust
the drive clutch control if any of the following happens:
The mower does not propel itself with the drive
clutch engaged.
The mowers drive wheels hesitate with the drive
clutch engaged.
To resolve the above problems, rotate the adjustment
wheel with your fingers. Clockwise to tighten the cable
and counter-clockwise to loosen the cable. See Figure
14.
NOTE: For some people the drive clutch control may
not be in a comfortable position. You can adjust the
handle out by tightening the adjustment wheel.
Rear Wheel Cutting
Height Adjustment
Axle Bolt
Caster
Locks
Notch
Lower Handle

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Cub Cadet SC 621 Specifications

General IconGeneral
BrandCub Cadet
ModelSC 621
CategoryLawn Mower
LanguageEnglish

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