Husqvarna LTH120 To Replace Mower Blade Drive Belt See Fig, To Adjust Brake See Fig, Belt Removal

SERVICE AND ADJUSTMENTS

SUSPENSION ARM

LIFT LINK

ADJUSTMENT

NUT

FIG. 18

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 REPLACE MOWER BLADE DRIVE BELT (See Fig. 21)

The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake.

BELT REMOVAL -

•Remove mower from tractor (See “TO REMOVE MOWER” in this section of this manual).

•Work belt off both mandrel pulleys and idler pulleys.

•Pull belt away from mower.

BELT INSTALLATION -

•Install new belt in reverse order of removal.

•Make sure belt is in all pulley grooves and inside all belt guides.

•Install mower in reverse order of removal instructions.

To obtain the best cutting results, the mower housing should be adjusted so that 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 distance “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 10-3/8".
•	If links are not equal in length, adjust one link to same
	length as other link.

MANDREL PULLEY

MANDREL PULLEY

IDLER PULLEYS

• To lower front of mower loosen nut “E” on both front links

an equal number of turns.

• When distance “D” is 1/8" to 1/2" 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 1/8" to 1/2" lower at front than rear,

tighten nut “F” against trunnion on both front links.

• Recheck side-to-side adjustment.

MANDREL

"D" "D"

FIG. 19

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

NUT "E"

NUT "F"

TRUNNION

FRONT LINKS

FIG. 21

TO ADJUST BRAKE (See Fig. 22)

Your tractor is equipped with an adjustable brake system which is mounted on the side of the transaxle.

If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted.

•Depress clutch/brake pedal and engage parking brake.

•Measure distance between brake operating arm and nut “A” on brake rod.

•If distance is other than 1-9/16", loosen jam nut and turn nut “A” until distance becomes 1-9/16". Retighten jam nut against nut “A”.

•Road test tractor for proper stopping distance as stated above. Readjust if necessary. If stopping distance is still greater than six (6) feet in highest gear, further maintenance is necessary. Contact your nearest au- thorized service center/department.

WITH PARKING BRAKE “ENGAGED”

NUT

1-9/16"“A”

JAM NUT

OPERATING

ARM

DO NOT TOUCH THIS NUT. IF FURTHER BRAKE ADJUSTMENT IS NECESSARY CONTACT YOUR NEAR- EST AUTHORIZED SERVICE CENTER/DEPARTMENT

FIG. 20 20 FIG. 22