To Replace Mower Blade Drive Belt; To Check And Adjust Brake; Side-To-Side Adjustment; Front-To-Back Adjustment - Poulan Pro PO18H42STA Owner's Manual

SERVICE AND A JUSTMENTS
SIDE-TO-SIDE ADJUSTMENT (See Figs. 18 and 19)
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: Three ful turns of adjustment nut will change mower
height about 1/8".
Recheck measurements after adjusting.
BOTTOM EDGE OF BOTTOM EDGE
MOWER _ = _ _ _OF MOWER
FIG. 18
(_)\ SUSPENSION ARM
lIFT LINK
FIG. 19
FRONT-TO-BACK ADJUSTMENT (See Figs. 20 and 21)
IMPORTANT: DECK MUST BE LEVEL SIDE-TO*SIDE. IF THE
FOLLOWING FRONT-TO-BACK ADJU STM ENT 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 high-
est position.
Check ad ustment on right side of tractor. Measure distance
"D" d rectly in front and behind the mandre at bottom edge
of mower housing as shown.
• Before making any necessary adjustments, check that
both front links are equal in length.
• 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.
__MANDREL
FIG. 20
BOTH FRONT LINKS MUST BE EQUAL IN LENGTH
FRONT UNKS
FIG. 21
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 22)
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 instruc-
tions.
MANDRELPUL
IDLER PULLEYS
MANDREL _
PULLEY
2O
FIG. 22
TO CHECK AND ADJUST BRAKE (See Fig. 23)
Your tractor is equipped with an adjustable brake system
which is mounted on the right side of the transaxle.
If tractor requires more than five (5) feet to stop at highest
speed in highest gear on a level, dry concrete or paved
surface, then brake must be checked and adjusted.