Snapper LT180H38 IBV, LT180H33 IBV Engine Adjustments & Repair, Blade Brake Adjustment

Section 4 - ADJUSTMENT & REPAIR

WARNING

DO NOT attempt any adjustments, maintenance or service with the engine or blade running. STOP blade. STOP engine. Set brake. Remove key. Remove spark plug wire from spark plug and secure wire away from spark plug. Engine and components can be extremely hot. Avoid burns by allowing engine and components sufficient time to cool.

4.1ENGINE ADJUSTMENTS & REPAIR

Refer to the engine owner's manual for those adjustments and/or repairs that can be made by the owner.

4.2MOWER DECK & COMPONENT ADJUSTMENTS The following mower deck and component adjustments and repairs can be made by the owner. However, if there is difficulty in achieving these adjustments and repairs, it is recommended that these repairs be made by an authorized SNAPPER dealer.

WARNING

Blades must stop rotating in 5 seconds or less after blades have been turned off. DO NOT operate machine until blade brake has been adjusted and functioning properly. Contact your SNAPPER dealer for assistance.

4.2.1.BLADE BRAKE ADJUSTMENT

The blade brake when properly adjusted will stop blade rotation in 5 seconds or less when the blade engagement lever is moved to the OFF position.

33” DECK BLADE BRAKE ADJUSTMENT

1.Blade brake adjustment is made by turning the adjustment nut on the threaded brake rod. The brake is initially set with 1-3/16” of thread exposed beyond the nut. See Figure 4.1. Verify this setting before attempting any adjustments. To tighten the brake (stop blade rotation quicker) turn the adjustment nut clockwise – ONE TURN ONLY.

IMPORTANT: DO NOT over-tighten blade brake. Tighten one turn and check function of brake. If blade stop time remains over 5 seconds, turn adjustment nut 1 to 2 turns clockwise. If blade stop time remains over 5 seconds, DO NOT OPERATE machine. Contact your SNAPPER dealer for assistance.

1-3/16”

FIGURE 4.1

38” DECK BLADE BRAKE ADJUSTMENT

The 38” deck requires no blade brake adjustment. Blades must stop in 5 seconds or less after blades have been turned off. If blades continue to rotate, contact your authorized SNPPER dealer for assistance.

WARNING

DO NOT operate machine until blade brake has been repaired and functioning properly. If blade stop time can not be achieved with the adjustment procedure described above, take machine immediately to an authorized SNAPPER dealer.

18