To Level Mower Housing; Side-To-Side - Craftsman 917.254850 Owner's Manual

SERVtCE 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 page 3). If tires are
over or under inflated, you wiif not properly adjust your
mower.,
SIDE-TO-SIDE ADJUSTMENT (See Figs. 20 and 21)
You will need two (2) standard 2 x 4 short pieces of wood
to make the following adjustment° Similar blocks measur-
ing !-1/2" thick may also be used..
o Raise mower with attachment lift control to allow two
(2) 1-1/2" thick blocks to be placed under rear edge of
mower..
• Place one block directly behind the left mandrel.. Place
the remaining block under the stamped ridge on the
right rear edge of mower deck.
• Lower mower deck to its lowest height of cut posit!on
(See 'q'O ADJUST MOWER CUTTING HEIGHT' in
Operation section of this manual),
o On both sides of tractor, loosen, but do not remove, the
fasteners securing the adjustable pivot brackets to
frame. Both brackets must be loose enough to move
freely..
° Pull down firmly on suspension arm to remove any
slack in pivot bracket and hold while tightening rear
fastener first to secure.. Tighten remaining fasten'er.
o Repeat procedure on other side of tractor..
° Raise mower with attachment lift control and remove
blocks from under mower..
PLACE TWO (2) 1-1/2" THICK BLOCKS UNDER REAR EDGE OF
DECK (Use wood 2 x 4's or equiv.)
DIRECTLY .I ........
MOWER MUST BE IN LOWEST HEIGHT OF CUT POSITION
FIG. 20
ADJUSTABLE PIVOT
BRACKET
FASTENERS
SUSPENSION ARM
PULL DOWN AND TIGHTEN REAR FASTENER FIRST
FRONT-TO-BACK ADJUSTMENT (See Figs_ 22 and 23) _
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 StDE-TO-
SIDEo
To obtain the best cutting results, the mower housing
should be adjusted so that the front is 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 shown..
° Before making any necessary adjustments_ check that
both front lin_s are equa!, in length_ Both I_nks 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.
o 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 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
21
FIG. 22
BOTH FRONT LINKS MUST BE EQUAL IN LENGTH
NUT "E"
NUT "F"
FRONT LINKS TRUNNION
FIG. 23