Craftsman 917O251550 owner manual Ice And Adjustments, To Replace Mower Drive Belt, position_, Fig

ICE AND ADJUSTMENTS

FRONT-TO-BACK ADJUSTMENT (See Figs. 20 and 21) -

IMPORTANT: DECK MUST BE LEVEL SIDE-TO-SIDE.. IF THE FOLLOWING FRONT-TO-BACK ADJUSTMENT IS

NECESSARY, BE SURETO ADJUST BOTHFRONT LINKS EQUALLY SO MOWER WILL STAY LEVEL SIDE-TO-SIDEo

TO obtain the best cutting results, the mower housing should be adjusted so the front is approximately 1/8" to 1/2" lower than the rear when the mower is in its highest

position_

Check adjustment on right side of tractor. Measure dis- tance "F" directly in front of and behind the mandrel at

bottom edge of mower housing as shown_

Before making any necessary adjustments, check that both front linksare equal in length.

•If links are not equal in length, adjust one link to same length as other link.

-To lower front of mower housing, loosen nut"G" on both

front links an equal number of turns°

•When distance "F" is t/8" to 1/2" lower at front than

rear, tighten nut"H" against trunnion on both front links.

°To raise front of mower housing, loosen nut "H" from trunnion on both front links. Tighten nut "G" on both

front links an equal number of turns.

•When distance "F" is 1/8" to 1/2" lower at front than

rear, tighten nut "H" against trunnion on both front links.

NOTE: Each fult turn of nut "G" will change dim, "F" by approximately 3/8".

•Recheck side-to-side adjustmenL

MANDREL

"F"F"

FIG. 20

BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH

NUT "G"

NUT"H'

FRONT LINKS

FIG, 21

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TO REPLACE MOWER DRIVE BELT

MOWER DRIVE BELT REMOVAL (See Fig. 22)

°Park tractor on a level surface, Engage parking brake.

•Remove four'screws from L.H_ mandrel cover'and remove cover.

•Roll belt over'the top of LH_ mandrel pulley.

•Remove belt from electric clutch pulley.

•Remove belt from idler pulleys,

•Remove any dirt or grass clippings which may have

accumulated around mandrels and entire upper deck_ surface°

°Check primary idler arm and two idlers to see that they rotate freely_

•Be sure spring is securely hooked to primary idler arm and bolt in mower housing,

MOWER DRIVE BELT INSTALLATION (See Fig. 22) -

•install bert in both idlers_ Make sure belt is in both belt keepers at the idlers as shown.

°Install new belt onto electric clutch pulley.

°Roll belt into upper groove of L.H_ mandrel putiey,

•Carefully check belt routing making sure belt is in the grooves correctly and inside belt keepers.

•Reassemble L.H_ mandrei coven

L.H,		SPRING
MANDREL	SCREWS	ELECTRIC
COVER		CLUTCH
	IDLER
		PULLEY

PULLEYS

PRIMARY

IDLER ARM

BOLT IN

MOWER

HOUSING

MANDREL

MOWER

DRIVE BELT

BELT KEEPERS

FIG, 22

20