Husqvarna GTH220 To Replace Mower Blade Drive Belt See Fig, To Adjust Attachment Clutch See Fig

SERVICE AND ADJUSTMENTS

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

Park the tractor on level surface. Engage parking brake.

•Remove mower drive belt (See “TO REPLACE MOWER DRIVE BELT” in this section of this manual).

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

•Remove four screws from R.H. mandrel cover and remove cover. Unhook spring from bolt on mower housing.

•Carefully roll belt off R.H. mandrel pulley.

•Remove belt from center mandrel pulley, idler pulley, and L.H. mandrel pulley.

•Remove any dirt or grass which may have accumu- lated around mandrels and entire upper deck surface.

•Check secondary idler arm and idler to see that they rotate freely.

•Be sure spring is hooked in secondary idler arm and sway-bar bracket.

•Install new belt in lower groove of L.H. mandrel pulley, idler pulley, and center mandrel pulley as shown.

•Roll belt over R.H. mandrel pulley. Make sure belt is in all grooves properly.

•Reconnect spring to bolt in mower housing and rein- stall R.H. mandrel cover.

•Reinstall mower to tractor (See “INSTALL MOWER AND DRIVE BELT” in the Assembly section of this manual).

•Reassemble mower drive belt (See “TO REPLACE MOWER DRIVE BELT” in this section of this manual).

L.H. MANDREL	MOWER BLADE		CENTER
	DRIVE BELT
			MANDREL
			R.H.
			MANDREL
			COVER
			SCREW
SECONDARY
IDLER ARM
SPRING
SWAY BAR		IDLER
BRACKET		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 your nearest authorized service center/department.

•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 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
LOCKNUT (3)	SLOT (3)	BRAKE PLATE

FIG. 26

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