Snapper SPLH153KW, SPLH173KW, SPA361, SPA481, SPA521, SPA611

SECTION 3 - OPERATING INSTRUCTIONS

3.9 CUTTING HEIGHT ADJUSTMENT

(Fixed Decks)

The Mower has three methods of adjusting cutting height listed as follows:

1.Moving position of BLADE on cutter spindle shaft.

2.Moving position of CASTER WHEEL on support.

3.Moving position of MOWER DECK on power unit.

WARNING

DO NOT attempt any maintenance, adjustments or service with the engine running. Stop engine. Stop blades. Latch Traction Controls in neutral. Move Speed Control lever to SLOW. Remove key. Disconnect spark plug wires from spark plugs and secure wires away from spark plugs. Engine and components are HOT. Avoid serious burns, allow all parts to cool before working on machine.

NOTE: Remove (or add) Spacers by rotating slots so they align with the flat area on Caster Shaft.

SLOT

SPACERS

		NOTE! THOSE SPACERS
		REMOVED FROM BOTTOM
		OF CASTER SHOULD BE
		REINSTALLED AT TOP
	FLAT	BEFORE INSERTING
	FLAT	RETAINER PIN.
	AREA	RETAINER PIN.
	AREA
		FIGURE 3.12

3.10ADJUSTING CASTER WHEELS

The Caster Wheel Assembly has four (4) 1/2” and one

(1)1/4” thick spacer. The 1/4” thick spacer always stays on the stop side of the caster support tube. The 1/2” thick spacers are used to adjust the cutting height. When placed above or below Caster Support Tube, they raise or lower cutting height in 1/2” increments, thus providing a “Quick-Adjust” method. The deck mounting has to be changed to correspond to the caster repositioning. Refer to Section “ADJUSTING FIXED DECK ATTACHMENT”.

1. Remove the Retainer Pin from Caster Shaft. See Figure 3.11.

		CASTER
	CASTER SHAFT	SUPPORT
	CASTER SHAFT	TUBE
		TUBE

3.11 ADJUSTING BLADE ON CUTTER SPINDLE

To change cutting height of Blades, move the Spacers from under the Cutter Housing to above the Cutter Housing Pulley. Each Spacer moved above the Cutter Housing Pulley will provide an additional 1/4” of cutting height. DO NOT PUT ANY SPACERS BELOW BLADE! See Figure 3.13.

	CUTTER	SPACERS ON
	CUTTER	TOP
	HOUSING	TOP
	HOUSING
	PULLEY	CUTTER
		CUTTER
		HOUSING
	SPACERS ON	BLADE
	BOTTOM	BLADE
	BOTTOM

FIGURE 3.13

NOTE: Changing the cutting height of Blades DOES NOT change the Deck ground clearance. If an undesirable cutting pattern results, then cutting height adjustment MUST be made by adjusting Mower Deck height and Caster Wheels.

Install Blades (Air-Lift UP) with retaining hardware as shown below and tighten to 70-80 ft. lbs.

RETAINER

CASTER WHEEL ASSEMBLY

See Figure 3.14.

HEIGHT

ADJUSTING

SPACERS

AIR LIFT

BLADE

FIGURE 3.11

2.Lift Caster Support Tube while adding or removing the bottom Spacer. See Figure 3.12.

BEVELED

WASHER

MOUNTING

BOLTTIGHTEN TO 70-80

FOOT POUNDS

FIGURE 3.14