Making Adjustments - Yard-Man 979 Operator's Manual

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
Your mower is shipped with the cutting height in the
lowest position. The 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 10.
NOTE: For rough or uneven lawns, move the height
adjustment lever to a higher position. This will help stop
scalping.
Cutting Height
Adjustment Lever
Figure 10
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 and remove the wing nuts and
carriage bolts from the upper hole on the handle
mounting bracket. Press out on the legs of the
lower handle and remove lower handle from the
mower.
• Turn lower handle around so the notch on the
bottom of the lower handle is facing forward.
See Figure 11.
• Reassemble, placing the bottom holes in the
handle over the weld pins in the handle mounting
bracket.
Lower
Higher
• Place the hairpin clips in the inner holes in the weld
pins and insert the carriage bolts the upper hole on
the handle mounting bracket and secure with
plastic wing nuts.
• Reassemble the upper handle to the lower handle.
• Attach the starter rope as instructed in the
Assembly Section.
Lower Handle
Drive Clutch Control Adjustment
The 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 mower's 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 12.
Bottom View
Adjustment
Wheel
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.
Shift Lever Cable Adjustment
Periodic adjustment of the six speed shift cable may be
11
Notch
Figure 11
Upper
Handle
Drive Clutch
Control
Figure 12