To Level Mower Housing; Side-To-Side Adjustment; Front-To-Back Adjustment; To Replace Mower Blade Drive Belt - Craftsman 917.270821 Owner's Manual

TO LEVEL MOWER HOUSING
Adjust the mower while tractor is parked
on levpLgmund or driveway. Make sure
tires am properly inflated (See
"PROD-
UCT SPECIFICATIONS"). if tires are
over or underinflated, you will not properly
adjust your mower.
SIDE-TO-SIDE ADJUSTMENT
•" 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 adjust-
ment 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: Each full turn of adjustment nut
will change mower height about 1/8".
• Recheck measurements after adjusting.
Boffom Bottom
of Cud _ ! - - I _ofCurl
• Suspension
Arm
Uft Link Adjustment Nut
"FRONT-TO-BACK ADJUSTMENT
IMPORTANT: Deck must;be level side-to-
side. If the following front:to-back adjust-
ment 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 adjustmerjt on fight side of tractor.
Measure distance "D" directly in front and
behmdtll_mandrel at bottom edge of
mower housing as shown.
• Be-t'_'e n_king any necessary adjust-
ments, check,that both front links are
equal in length- Both links should be
approximately 10-3/8".
• 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
tums.
• 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 tums.
• 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.
Both Front Links Should be Equal in Length
Nut =F" Nut "E"
Trunnion
Front Links
TO REPLACE MOWER BLADE DRIVE
BELT (See Illustration Next Page)
The mower blade drive belt may be
replaced without tools. Park the tractor on
level surface. Engage parking brake.
24
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: