Husqvarna GTH220 owner manual To Replace Mower Drive Belt, FRONT-TO-BACK Adjustment See Figs

SERVICE AND ADJUSTMENTS

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 SIDE-TO-SIDE.

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 links are 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 1/8" 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 full turn of nut “G” will change dim. “F” by approximately 3/8".

•Recheck side-to-side adjustment.

“F”	GROUND LINE
	“F”

FIG. 22

BOTH FRONT LINKS SHOULD BE EQUAL IN LENGTH

NUT “G”

NUT “H”

FRONT LINKS

TO REPLACE MOWER DRIVE BELT

MOWER DRIVE BELT REMOVAL (See Fig. 24) -

•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 L.H. 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. 24) -

•Install belt 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 pulley.

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

•Reassemble L.H. mandrel cover.

L.H.	SCREWS		ELECTRIC
		SPRING	CLUTCH
MANDREL
			PULLEY
COVER		IDLER
		PULLEYS
		PRIMARY
		IDLER
		ARM
			BOLT IN
			MOWER
			HOUSING
L.H.
MANDREL
MOWER
DRIVE BELT		BELT
		KEEPER

FIG. 24

FIG. 23 21