Poulan 159759 - Manual (Page 22)

service
;
and adjustments
TO LEVEL MOWER HOUSING
Adjust the mower while tractor is parked on level ground or
driveway. Make sure tires are properly inflated (See
“PRODUCT SPECIFICATIONS” on page 2 of this manual).
If tires are over or underinflated, you will not properly adjust
your mower.
SIDE-TO-SIDE ADJUSTMENT (See Figs. 19 and 20)
•
Raise mower to its highest position.
• At the midpoint of both sides of mower, measure height
from bottom edge of mdwerto ground. Distance “A” on
both sides of mower should be the same or within 1/4"
of each other.
• If adjustment is necessary, make adjustment on one
side of mower only.
• To raise one side of mower, tighten lift link adjustment
nut on that side.
• To lower one side of mower, loosen lift link adjustment
nut on that side.
NOTE: Three full turns of adjustment nut will change
mower height about 1/8".
• Recheck measurements after adjusting.
BOTTOM EDGE
OF MOWER TO
GROUND
11.
BOTTOM EDGE
OF MOWER TO
GROUN
GROUND LINE
1
FIG. 20
FRONT-TO-BACK ADJUSTMENT (See Figs. 21 and 22)
IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. IF
THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS
NECESSARY, BE SURE TO ADJUST BOTH FRONT LINKS
EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO-
SIDE.
To obtain the best cutting results, the mower housing
should be adjusted so that the front is approximately 1 /8" to
1/2" lower than the rear when the mower is in its highest
position.
Check adjustment on right side of tractor. Measure dis­
tance “D” directly in front and behind the mandrel at bottom
edge of mower housing as shown.
• Before making any necessary adjustments, check that
both front links are equal in length. Both links should be
approximately 10-3/8".
If links are not equal in length, adjust one link to same
length as other link.
To lower front of mower loosen nut “E” on both front
links an equal number of turns.
When distance “D” is 1/8" to 1/2" lower at front than
rear, tighten nuts “F” against trunnion on both front
links.
To raise front of mower, loosen nut “F” from trunnion on
both front links. Tighten nut “E” on both front links an
equal number of turns.
When distance “D” is 1/8" to 1/2" lower at front than
rear, tighten nut “F” againsttrunnion on both front links.
Recheck side-to-side adjustment.
22
TO REPLACE MOWER DRIVE BELT
MOWER DRIVE BELT REMOVAL (See Fig. 23) -
•
Park tractor on a level surface. Engage parking brake.
Disengage attachment clutch control.
• Remove four screws from L.H. mandrel cover and
remove cover.
• Roil belt over the top of L.H. mandrel pulley.
• Remove belt from engine pulley.
• Remove belt from idler pulleys.
• Remove any dirt or grass clippings which may have
accumulated around mandrels and entire upper deck
surface.