Yard Machines through 429 Lawn Mower User Manual


 
12
For a healthy lawn, never cut more than one-third of
the total length of the grass at any one cutting.
Lawn should be cut in the fall as long as there is
growth.
This mower is designed to be operated at full
throttle to give you the best cut and do the most
effective job of bagging the cut grass.
WARNING: If you strike a foreign object,
stop the engine. Remove wire from spark
plug, thoroughly inspect the mower for
any damage, and repair the damage
before restarting and operating the
mower. Extensive vibration of the mower
during operation is an indication of
damage. The unit should be promptly
inspected and repaired.
Using Mulcher
(If equipped)
For effective mulching, do not cut wet grass
because it tends to stick to the underside of the
deck, preventing proper mulching of grass
clippings.
New or thick grass may require a narrower cut. The
ground speed should be adjusted to the condition
of the lawn. If mowing has been delayed and the
grass has been allowed to grow in excess of 4",
mulching is not recommended. Mow using the
grass bag to reduce the grass height to 3-1/4"
maximum before mulching.
SECTION 6: MAKING ADJUSTMENTS
WARNING: Do not at any time make any
adjustment to lawn mower without first
stopping engine and disconnecting spark
plug wire.
Cutting Height
An adjusting plate and thumb lever at each wheel
position provides cutting height adjustment. Each
adjusting plate has nine height positions.
Simply depress the lever towards wheel and move
it to any of the nine positions for the desired cutting
height. See Figure 14. All four levers on the four
wheels must be placed in the same relative position
for uniform cutting height.
Figure 14
Handle Height
Your mower is shipped with the handle in the higher
height position. To lower the handle 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 outward on the legs of the
lower handle, and remove it from the mower.
Figure 15
Turn the lower handle around so the notches on the
bottom of the lower handle are facing forward as
shown in Figure 15 . Reassemble, placing the
bottom holes in the handle over the weld pins in the
handle mounting bracket.
Reassemble the upper handle.
Place the hairpin clips in the inner holes in the weld
pins and attach the starter rope as instructed earlier
on page 7.
Carburetor
Minor carburetor adjustments may be required to
compensate for differences in fuel, temperature,
altitude and load. To adjust carburetor, refer to the
separate engine manual packed with your mower.
Height
Adjustment
Lever
Lower
Handle
Notch