McCulloch 422800 - Manual (Page 21)

21
SERVICE AND ADJUSTMENTS
FRONT-TO-BACK ADJUSTMENT (See Figs. 24 & 25)
IMPORTANT: Deck must be level side-to-side.
To obtain the best cutting re sults, the mower blades should
be adjusted so the front tip is 1/8" to 1/2" lower than the
rear tip when the mower is in its highest position.
CAUTION: Blades are sharp. Protect
your hands with gloves and/or wrap
blade with heavy cloth.
• Raise mower to highest position.
•
Position any blade so the tip is pointing straight forward.
Measure distance (B) to the ground at front and rear tip
of the blade.
TO LEVEL MOWER
Make sure tires are properly inflated to the PSI shown on
tires. If tires are over or under inflated, it may affect the
appearance of your lawn and lead you to think the mower
is not adjusted properly.
VISUAL SIDE-TO-SIDE ADJUSTMENT (See Fig. 22)
•
With all tires properly inflated and if your lawn appears
unevenly cut, determine which side of mower is cutting
lower.
NOTE: As desired, you can raise the low side of mower
or lower the high side.
• Go to side of mower you wish to adjust.
• With a 3/4" or adjustable wrench, turn lift link adjust-
ment nut (A) to the left to lower the mower, or, to the
right to raise the mower.
NOTE: Each full turn of adjustment nut will change mower
height about 3/16".
• Test your adjustment by mowing some uncut grass
and visually checking the appearance. Readjust, if
necessary, until you are satisfied with the results.
A
Turn nut left
to lower mower
Turn nut right
to raise mower
FIG. 22
FIG. 23
PRECISION SIDE-TO-SIDE ADJUSTMENT (See Fig. 23)
• With all tires properly inflated, park tractor on level
ground or driveway.
CAUTION: Blades are sharp. Protect
your hands with gloves and/or wrap
blade with heavy cloth.
• Raise mower to its highest position.
• At both sides of mower, position blade at side and
measure the distance (A) from bottom edge of blade
to the ground. The distance should be the same on
both sides.
NOTE: Each full turn of the adjustment nut will change
mower height about 1/8".
•
Recheck measurements, adjust if necessary until front
tip of blade is 1/8" to 1/2" lower than the rear tip.
• Hold adjustment nut in position with wrench and tighten
jam nut securely against adjustment nut.
B B
FIG. 24
FIG. 25
02966
A A
• If adjustment is necessary, see steps in Visual Adjust-
ment instructions above.
• Recheck measurements, adjust if necessary until both
sides are equal.
B
02950
A
TIGHTEN ADJUST
NUT B TO RAISE
MOWER
LOOSEN
ADJUST NUT
B TO LOWER
MOWER
LOOSEN JAM NUT A FIRST
• If front tip of blade is not 1/8" to 1/2" lower than the rear
tip, go to the front of tractor.
• With an 11/16" or adjustable wrench, loosen jam nut A
several turns to clear adjustment nut B.
• With a 3/4" or adjustable wrench, turn front link adjustment
nut (B) clockwise (ltighten) to raise the front of mower,
or, counterclockwise (loosen) to lower the front mower.