Sears 917.256543 manual Service AN Adjustments, To Level Mower Housing

SERVICE AN ADJUSTMENTS

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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 of this manual). Iftires are over or underinflated, you will not properly adjust your mower.

SIDE-TO-SIDE ADJUSTMENT (See Figs. 20 and 21)

o Raise mower to its highest position..

•At the midpoint of both sides of mower, measure height from bottom edge of mower to groundo Distance"A" on both sides of mower should be the same or within 1/4" of each other.

oIf adjustment is necessary, make adjustment on one side of mower onlyo

oTo raise one side of mower, tighten lift link adjustment nut on that side..

oTo 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"..
o Recheck	measurements	after adjusting,
BOTTOM EDGE		BOTTOM EDGE
OF MOWER TO		OF MOWER TO
GROUND		GROUND

FRONT-TO-BACK ADJUSTMENT (See Figs° 22 and 23)

IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE. fF

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 is approximately I/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 links are equal in length.. Both links should be approximately t0-3/8"o

oIf 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 distanc& "D" is 1/4" to 3/4" lower at front than

rear, tighten nuts "F" against trunnion on both frc;_t links,

oTo 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°

oWhen 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..

_3;_ % I MANDREL

GROUND LINE A

FIG. 20

SUSPENSION

ARM

FIG. 22

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

LIFT LINK

ADJUSTMENT NUT

FIG. 21

NUT "E"

NUT "F"

FRONT LINKS TRUNNION

21 FIG. 23