Sears 917.257651 owner manual Servmce And Adjustments, To Level Mower Housing

SERVMCE AND ADJUSTMENTS

TO LEVEL MOWER HOUSING

Adjust the mower while tracto_ is parked on level ground or driveway. Make sure tires are propedy inflated (See "PRODUCT SPEC! FtCATIO NS" on page 3 of this manual). If tires are over or underinf]ated, you will not properly adjust your mower,.

SIDE-TO-SIDE ADJUSTMENT (See Figs. 21 and 22)

o Raise mower to its highest position,

oAt the midpoint of both sides of mower, measure height from bottom edge of mower to ground_ Distance"A" on both sides of mower shoutd 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 link adjustment nut on that side,.

NOTE: Three furl turns of adjustment nut will change mower height about 1/8"

•Recheck measurements after adjusting,_

FRONT-TO-BACK ADJUSTMENT (See Figs, 23 and 24)

IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE tF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT tS

NECESSARY, BE SURETOADJUST BOTH FRONT LINKS

EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO- SIDE

BOTTOM EDGE	BOTTOM EDGE
OF MOWER TO
	OF MOWER TO
GROUND

FIG. 21

LIFT LINKADJUSTMENTNUT

FIG. 22

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 tractot_ 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 ate 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 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,

•Recheck side-to-side adjustment.

,, ,,,, _, ,/ MANDREL

FIG. 23

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

NUT "E"

NUT "F*'_

FRONT LINKS TRUNNION

FIG. 24

2O