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21
SERVICE AND ADJUSTMENTS
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 neces-
sary, until you are satisfi ed with the results.
02966
A
A
02548
B
B
PRECISION SIDE-TO-SIDE ADJUSTMENT
(See Fig. 25A)
• With all tires properly infl ated, 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.
• If adjustment is necessary, see steps in Visual Adjust-
ment instructions above.
• Recheck measurements, adjust if necessary until both
sides are equal.
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.
FIG. 25A
FIG. 25B
B
02950
Tighten adjust nut
B to raise mower
Loosen adjust nut
B to lower mower
Loosen jam nut A fi rst
A
FIG. 26
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 27)
MOWER DRIVE BELT REMOVAL
• Park tractor on a level surface. En gage parking
brake.
• Lower attachment lift lever to its lowest position.
• Disengage belt tension rod (K) from lock bracket (L).
CAUTION: Belt tension rod is spring
loaded. Have a fi rm grip on rod and
release slowly.
• Remove screws (P) from mandrel covers (Q) and re-
move covers.
• Remove any dirt or grass clippings which may have
accumulated around mandrels and entire upper deck
surface.
• Remove belt from electric clutch pulley (M), both man-
drel pulleys (R) and all idler pulleys (S).
FRONT-TO-BACK ADJUSTMENT (See Figs. 25A and 26)
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.
• 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 adjust-
ment nut (B) clockwise (ltighten) to raise the front of
mower, or, counterclockwise (loosen) to lower the front
mower.