Husqvarna LOYTH20F42T manual To Replace Mower Drive Belt, To Adjust Attachment Clutch

B

A

Tighten adjust nut	Loosen adjust nut
B to raise mower	B to lower mower

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Loosen jam nut A first

NOTE: Each full turn of the adjustment nut will change mower height about 1/8".

•Recheck measurements, adjust if nec- essary until front tip of blade is 1/8" to 1/2" lower than the rear tip.

•Hold adjustment nut in position with wrench and tighten jam nut securely against adjustment nut.

TO REPLACE MOWER DRIVE BELT

MOWER DRIVE BELT REMOVAL

1.Park tractor on a level surface. Engage parking brake.

2.Lower attachment lift lever to its lowest position.

3.Remove any dirt or grass clippings which may have accumulated around mandrels and entire upper deck sur-

face.

S

M

R

R

4.Remove belt from electric clutch pulley (M), both mandrel pulleys (R) and all idler pulleys (S).

MOWER DRIVE BELT INSTALLATION

1.Install belt around all mandrel pulleys

(R)and around idler pulleys (S) as shown.

2.Install belt onto electric clutch pulley

IMPORTANT: Check belt for proper rout- ing in all mower pulley grooves.

3.Raise attachment lift lever to highest position.

TO ADJUST ATTACHMENT CLUTCH

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. Ad- justments should be made by a qualified service center.

1.Make sure attachment clutch and igni- tion switches are in “OFF” position.

2.Adjust the three nylon locknuts until space between clutch plate and rotor measures .012" at all three slot loca- tions 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"
Nylon	Slot (3)
Locknut (3)		Brake
		Plate

TO REPLACE MOTION DRIVE BELT

Park the tractor on level surface. Engage parking brake. For ease of service there is a belt installation guide decal on bottom of left footrest.

BELT REMOVAL -

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

NOTE: Observe entire motion drive belt and position of all belt guides and keepers.

2.Disconnect clutch wire harness (A).

3.Remove anti-rotation link (B) on right side of tractor.

4.Remove belt from stationary idler (C) and clutching idler (D).

5.Remove belt from centerspan idler (E).

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