SERVICE A
FRONT-TO-BACK ADJUSTMENT (See Figs, 20 and 2!) -
IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. IF
THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS
NECESSARY, BE SURETO 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°
o 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.,
ADJUSTMENTS
TO REPLACE MOWER DRIVE BELT
MOWER DRIVE BELT REMOVAL (See Fig, 22) -
° Park tractor on a level surface., Engage parking brake,
o Remove four screws from L.H_ mandrel cover and
remove cover,
o Roll belt over the top of LHo mandrel pulley,
o 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,, 22) *
• 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 putley_
• Carefully check belt routing making sure belt is in the
grooves correctly and inside belt keepers,
. Reassemble L,H_ mandrel cover,,
FIG. 2O
BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH
NUT "G"
NUT "H"
FRONT LINKS
L°H,
MANDREL
COVER SCREWS
SPRING
IDLER
PULLEYS
PRIMARY
IDLER ARM
ELECTRIC
CLUTCH
PULLEY
BOLT IN
MOWER
HOUSING
MANDREL
MOWER
DRIVE
BELT
BELT
KEEPERS
FIG. 22
FIG. 21
21
