Poulan Pro PB20H42LT LAWN TRACTOR - Manual (Page 20)

20
SERVICE AND ADJUSTMENTS
• If adjustment is necessary, see step in Visual Adjust-
ment instructions above.
• Recheck measurements, adjust if necessary until both
sides are equal.
FRONT-TO-BACK ADJUSTMENT (See Figs. 31 & 32)
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 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. 29)
•
With all tires properly inflated and if your lawn appears
unevenly cut, determine which side of mower is cutting
lower.
• With a 3/4" or adjustable wrench, turn lift link adjust-
ment nut (A) to the left to lower LH side of mower, or,
to the right to raise LH side of 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.
PRECISION SIDE-TO-SIDE ADJUSTMENT (See Fig. 30)
• 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.
02966
A A
Fig. 30
• 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 (tighten) to raise the front of
mower, or, counterclockwise (loosen) to lower the front
mower.
Fig. 32
B
02950
A
TIGHTEN ADJUST
NUT B TO RAISE
MOWER
LOOSEN
ADJUST NUT
B TO LOWER
MOWER
LOOSEN JAM NUT A FIRST
Fig. 29
02948
A
Turn nut left
to lower mower
Turn nut right
to raise mower
B B
Fig. 31