Poulan 183748 - Manual (Page 20)

20
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 21)
The mower blade drive belt may be replaced without tools.
Park the tractor on level surface. Engage parking brake.
BELT REMOVAL
•
Remove mower from tractor (See “TO REMOVE
MOWER” in this section of this manual).
• Work belt off both mandrel pulleys and idler pulleys.
• Pull belt away from mower.
BELT INSTALLATION
•
Install new belt in reverse order of removal.
• Make sure belt is in all pulley grooves and inside all belt
guides.
• Install mower in reverse order of removal instructions.
SERVICE AND ADJUSTMENTS
NUT "E"
TRUNNION
"D" "D"
MANDREL
FIG. 19
NUT "F"
FRONT LINKS
FIG. 20
FRONT-TO-BACK ADJUSTMENT (See Figs. 19 and 20)
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 distance
“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 FRONT LINKS MUST BE EQUAL IN LENGTH
SUSPENSION ARM
LIFT LINK ADJUSTMENT
NUT
FIG. 18
FIG. 17
GROUND LINE
“A” “A”
BOTTOM EDGE
OF MOWER
TO GROUND BOTTOM EDGE
OF MOWER
TO GROUND
TO LEVEL MOWER HOUSING
Adjust the mower while tractor is parked on level ground or
driveway. Make sure tires are properly inflated (See “PROD-
UCT SPECIFICATIONS” section of this manual). If tires are
over or underinflated, you will not properly adjust your
mower.
SIDE-TO-SIDE ADJUSTMENT (See Figs. 17 and 18)
•
Raise mower to its highest position.
• At the midpoint of both sides of mower, measure height
from bottom edge of mower to 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: Each full turn of adjustment nut will change mower
height about 1/8".
•
Recheck measurements after adjusting.
• 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. The two front links must remain
equal in length.
• When distance “D” is 1/8" to 1/2" lower at front than rear,
tighten nut “F” against trunnion on both front links.
• Recheck side-to-side adjustment.