Snapper SPLH153KW, SPLH173KW, SPA361, SPA481, SPA521, SPA611 Cutting Height Adjustment

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
	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
	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
	TOP
HOUSING
PULLEY	CUTTER
	HOUSING
SPACERS ON	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

PIN

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

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