SERVICE AND ADJUSTMENTS

TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 25)

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.

MANDREL

IDLER

PULLEYS

PULLEY

 

 

MANDREL PULLEY

FIG. 25

TO ADJUST ATTACHMENT CLUTCH (See Fig. 26)

The electric clutch should provide years of service. The clutch has a built-in brake that stops the pulley within 5 seconds. Eventually, the internal brake will wear which may cause the mower blades to not engage, or, to not stop as required. Adjustments should be made by an authorized service technician.

Make sure attachment clutch and ignition switches are in “OFF” position.

Adjust the three nylon locknuts until space between clutch plate and rotor measures .012" at all three slot locations cut in the side of brake plate.

NOTE: After installing a new electric clutch, run tractor at full throttle and engage and disengage electric clutch 10 cycles to wear in clutch plate.

ROTOR

CLUTCH PLATE

 

 

.012"

SLOT (3)

 

NYLON LOCKNUT (3)

BRAKE PLATE

 

FIG. 26

TO ADJUST BRAKE (See Fig. 27)

Your tractor is equipped with an adjustable brake system which is mounted on the right 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 1-3/4", loosen jam nut and turn nut "A" until distance becomes 1-3/4". 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.

WITH PARKING BRAKE "ENGAGED"

1-3/4"

NUT “A”

JAM NUT

OPERATING ARM

DO NOT TOUCH THIS NUT. IF FURTHER

BRAKE ADJUSTMENT IS NECESSARY,

CONTACT YOUR NEAREST AUTHORIZED

SERVICE CENTER/DEPARTMENT.

FIG. 27

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Husqvarna LTH140 To Replace Mower Blade Drive Belt See Fig, To Adjust Attachment Clutch See Fig, To Adjust Brake See Fig