Craftsman 917.28990 Operator's Manual page 27

TO LEVEL MOWER HOUSING
Adjust the mower while tractor is parked
on level ground or driveway. Make sure
tires are properly inflated (See "PROD-
UCT SPECIFICATIONS" section of this
manual). If tires are over or underin-
flated, you will not properly adjust your
mower.
SIDE-TO-SIDE ADJUSTMENT
• Raise mower to its highest position.
• Measure height from bottom edge of
mower to ground level at front corners
of mower. Distance '_' on both sides of
mower should be the same.
• 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 3/16".
• Recheck measurements after adjusting.
Bottom Edge of Bottom Edge of
Mower to Ground Mower to Ground
Suspension
Arm
Check adjustment on right side of tractor.
Position any blade so the tip is pointing
straight forward. Measure distance "B" at
front and rear tip of blade
• Before making any necessary adjust-
ments, check that both front plate 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 blade, loosen nut "C"
on both front links an equal number of
turns.
NOTE: Each full turn of nut "C" will
change distance "B" by approximately
3/16".
• When distance "B" is 1/8" to 1/2" lower
at front than rear, tighten nut "D" against
trunnion on both front links.
• To raise front of blade, loosen nut
"D" from trunnion on both front links.
Tighten nut "C" on both front links an
equal number of turns. The two front
links must remain equal in length.
• When distance "B" is 1/8" to 1/2" lower
at front than rear, tighten nut "D" against
trunnion on both front links.
• Recheck side-to-side adjustment.
_. °o_\ I o o/ Blade
Ei_ Link
Adjustment
Nut
FRO NT-TO-BACK ADJUSTM ENT
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 blades should be adjusted so the
front tip is approximately 1/8" to 1/2" lower
than the rear tip when the mower is in its
,_ghest position.
CAUTION: Blades are sharp. Protect
your hands with gloves and/or wrap blade
with heavy cloth.
Nut
O2S,_
Front Plate Trunnion
Assembly
27