Craftsman 917255440 tractor

User Manual - Page 21

For 917255440.

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SERVICE AND ADJUSTMENTS
TO LEVEL MOWER HOUSING
Adjust the mower wHle tractor is parked on level ground or
driveway. Make sure tires are properly inflated (See
"PRODUCT SPECIFICATIONS'on page3 of this manual).
If tires are over Drunde rinflated, you will not properly adjust
your mower.
SIDE-TO-SIDE ADJUSTMENT (See Figs. 2! and 22) -
You win need two (2) standard 2 x 4 short pieces of wood
to make the following adjustment. Similar blocks measur-
ing 1-1/2" thick may also be used.
= 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 position
(See "TO ADJUST MOWER CUTTING HEIGHT' in
Operation section of this manual).
,, On bothsidesoftractor, 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 fastener.
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 equivalent)
DIRECTLY J__('_
MOWER MUST BE IN LOWEST HEIGHT OF CUT POSITION
FIG. 21
PULL DOWN AND TIGHTEN REAR FASTENER FIRST
FIG. 22
FRONT-TO-BACK ADJUSTMENT (See Figs. 23 and 24) -
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 that the front isapproximately 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, checktha!
both front links are equal in length. Both links snouma
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" fromtrunnion on"
both front links. Tighten nut "E" on both front links an
equal number of turns.
. When distance "D" is !/4" to 3/4" lower at froqt than
rear, tighten nut"F"againsttrunnion on both front links.
Recheck side-to-side adjustment.
_ oo,,i"X i o o i =MANDREL
FIG. 23
BOTH FRONT LINKS MUST BE EQUAL IN LENGTH
/
NUT "1""
FRONT LINKS TRUNNION
NUT "E"
21 FIG. 24
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