Service and adjustments – Craftsman 917.256544 User Manual
Page 21
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SERVICE AND ADJUSTMENTS
TO LEVEL MOWER HOUSING
Adjust the mower while tractor is parked on level ground or
driveway. Make sure tires are properly inflated (See
“PRODUCT SPECIFICATIONS” on pageSofthis manual).
If tires are over or underinflated, you will not properly adjust
your mower.
SIDE-TO-SIDE ADJUSTMENT (See Figs.
20
and 21)
® Raise mower to its highest position.
® At the midpoint of both sides of mower, measure height
from bottom edge of mowerto ground.
Distance
“A” on
both sides of mower should
be
the same
or
within
1/4"
of
each other.
® if adjustment is necessary, make adjustment 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
¡ink
adjustment
nut on that side,
NOTE;
Each
full turn of adjustment
nut
will change mower
height about 1/8”.
•
Recheck measurements
after adjusting,
BOTTOM EDGE
OF MOWER TO
GROUND
BOTTOM EDGE
OF MOWER TO
GROUND
T:
r ^
A ^
GROUND LINE
FIG. 21
FRONT-TO-BACK ADJUSTMENT {See Figs. 22 and 23)
IMPORTANT: DECK MUST BE LEVEL SIDE-TG-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 that the front ¡.s approximately 1/4“ to
3/4" lower than the rear when the mower is in its highest
position.
Check adjustment on right side of tractor. Measure dis
tance “D” directly in front and behind the mandrel at bottom
edge of mower housing as shov/n.
» Before making any necessary adjustment-s, 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 turns.
» When distance ‘'D” is 1/4" to 3/4" 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 ari
equal number of turns.
® When distance “D” is 1/4" to 3/4" lower at front than
rear, tighten nut “F” against trunnion on both front links.
*
Recheck side-to-side adjustment.
MANDREL
|1 ..
21
FIG. 23