Poulan PR20PH42STD User Manual - Page 20

To Replace Mower Blade Drive Belt, See Fig. 23, To Check And Adjust Brake, See Fig. 24

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SERVICE AND ADJUSTMENTS NOTE: Each full turn of adjustment nut will change mower height about 1/8". • Recheck measurements after adjusting. BOTTOM EDGE OF MOWER TO GROUND 00598 BOTTOM EDGE OF MOWER TO GROUND BOTH FRONT LINKS MUST BE EQUAL IN LENGTH 01267 A GROUND LINE A FIG. 19 NUT "F" NUT "E" SUSPENSION ARM TRUNNION 01156 01553 LIFT LINK ADJUSTMENT NUT 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 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. • 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. FRONT LINKS FIG. 22 TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 23) 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 manual). • Work belt off both mandrel pulleys and idler pulleys. • Pull belt away from mower. BELT INSTALLATION • Work belt around both mandrel pulleys and idler pulleys. • Make sure belt is in all pulley grooves and inside all belt guides. • Install mower (See "To Install Mower" in this section of manual). MANDREL PULLEY IDLER PULLEYS MANDREL PULLEY 01268 "D" "D" FIG. 21 MANDREL FIG. 23 TO CHECK AND ADJUST BRAKE (See Fig. 24) 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 20 surface, then brake must be checked and adjusted.

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20
01156
SERVICE AND ADJUSTMENTS
NOTE
:
Each full turn of adjustment nut will change mower
height about 1/8".
•
Recheck measurements after adjusting.
00598
GROUND LINE
BOTTOM EDGE OF MOWER
TO GROUND
FIG. 19
01553
SUSPENSION
ARM
LIFT LINK
ADJUSTMENT NUT
FIG. 20
BOTTOM EDGE OF MOWER
TO GROUND
A
A
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 high-
est 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.
•
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.
01267
TRUNNION
BOTH FRONT LINKS MUST BE EQUAL IN LENGTH
FRONT LINKS
NUT “E”
NUT “F”
01268
“D”
“D”
MANDREL
FIG. 21
FIG. 22
TO REPLACE MOWER BLADE DRIVE BELT
(See Fig. 23)
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 manual).
•
Work belt off both mandrel pulleys and idler pulleys.
•
Pull belt away from mower.
BELT INSTALLATION -
•
Work belt around both mandrel pulleys and idler pulleys.
•
Make sure belt is in all pulley grooves and inside all
belt guides.
•
Install mower (See "To Install Mower" in this section of
manual).
FIG. 23
TO CHECK AND ADJUST BRAKE
(See Fig. 24)
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.
IDLER
PULLEYS
MANDREL PULLEY
MANDREL
PULLEY