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SERVICE AND ADJUSTMENTS
21
FRONT LINKS
NUT “H”
NUT “G”
FIG. 23
TO REPLACE MOWER DRIVE BELT
MOWER DRIVE BELT REMOVAL (See Fig. 24) -
• Park tractor on a level surface. Engage parking brake.
• Remove four screws from L.H. mandrel cover and
remove cover.
• Roll belt over the top of L.H. mandrel pulley.
• Remove belt from electric clutch pulley.
• Remove belt from idler pulleys.
• Remove any dirt or grass clippings which may have
accumulated around mandrels and entire upper deck
surface.
• Check primary idler arm and two idlers to see that they
rotate freely.
• Be sure spring is securely hooked to primary idler arm
and bolt in mower housing.
MOWER DRIVE BELT INSTALLATION (See Fig. 24) -
• Install belt in both idlers. Make sure belt is in both belt
keepers at the idlers as shown.
• Install new belt onto electric clutch pulley.
• Roll belt into upper groove of L.H. mandrel pulley.
• Carefully check belt routing making sure belt is in the
grooves correctly and inside belt keepers.
• Reassemble L.H. mandrel cover.
FRONT-TO-BACK ADJUSTMENT (See Figs. 22 and 23)-
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 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 “F” directly in front of 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 housing, loosen nut “G” on both
front links an equal number of turns.
• When distance “F” is 1/8" to 1/2" lower at front than
rear, tighten nut “H” against trunnion on both front links.
• To raise front of mower housing, loosen nut “H” from
trunnion on both front links. Tighten nut “G” on both
front links an equal number of turns.
• When distance “F” is 1/8" to 1/2" lower at front than
rear, tighten nut “H” against trunnion on both front
links.
NOTE: Each full turn of nut “G” will change dim. “F” by
approximately 3/8".
• Recheck side-to-side adjustment.
BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH
FIG. 22
GROUND LINE
L.H.
MANDREL
IDLER
PULLEYS
PRIMARY
IDLER
ARM
ELECTRIC
CLUTCH
PULLEY
L.H.
MANDREL
COVER
SPRING
FIG. 24
BOLT IN
MOWER
HOUSING
MOWER
DRIVE BELT
BELT
KEEPER
SCREWS
“F”
“F”