Craftsman 917.25049 Owner's Manual page 22

SERVICE AND ADJUSTMENTS
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FRONT-TO-BACK ADJUSTMENT (See Figs. 20 and 21)
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 t/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"o
• Recheck side-to-side adjustment..
FIG. 20
BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH
='] _
==G _
NUT "H
FRONT LINKS
TO REPLACE MOWER DRIVE BELT
MOWER DRIVE BELT REMOVAL (See Fig_22)
• Park tractor on a level surface._Engage parking brake_
• Remove four screws from LoHo mandrel cover and
remove cover.
• Roll bert over the top of Loll., 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..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 pulley.
• Carefully check belt routing making sure belt is in the
grooves correctly and inside belt keepers.
• Reassemble L_H. mandrel cover.
ELECTRIC
LHo SCREWS SPRING CLUTCH
MANDREL PULLEY
COVER
BOLT IN
MOWER
HOUSING
MANDREL
MOWER
DRIVE BELT
BELT
KEEPER
FIG. 22
FIG. 21 22