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

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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.

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Contents Model Number Explanation 180Important Safety Instructions From Previous ColumnSafe Handling of Gasoline Towing Table of Contents Components ControlsPRE-START Checklist OPERATOR’S Seat Adjustment Front to Rear AdjustmentStarting & Operation Starting Engine OFFStarting & Operation 2.3.2. Starting Wheel Drive Starting Mower BladeStopping Wheel Drive Stopping Stopping Mower Blade Setting Park BrakeCutting Height Adjustment Releasing Park BrakeRolling Tractor with Engine OFF 2.6.1. Rolling Hydro Models Reverse Lockout Mechanism Reverse Lockout Mechanism OverrideChange Engine OIL Service After First 5 HoursIntroduction Check Blade BrakeCheck 33 Deck Drive Belt Service Every 25 Operating Hours Check EngineCheck Mower Blade Check 38 Deck Drive BeltMower Components Tractor LubricationService Annually Engine Must not Start if Service Annually 3.4.2. Fuel FilterSpark Plug Hydrostatic Transmission OIL Engine should Start ifEngine Adjustments & Repair Blade Brake AdjustmentDeck Blade Brake Adjustment Blade Belt Adjustment 33 Deck Blade Belt Adjustment 38 DeckOn next Adjusting Mower Blade 33 Deck from previous Side View of DeckDeck Level Adjustment Front to Rear Front Lift ROD Deck Level Adjustment Side to SideDeck Level Adjustment Front to Rear Sector Plates From previousFront of Tractor Deck Level Adjustment Front to Rear Tractor Drive Components Brake AdjustmentRear to Front View of Deck Steering Adjustment Shifter AdjustmentMounting Standard Blade Sharpening Mower Blade Service Standard Blade Wear LimitsNinja Blade Wear Limits Ninja Blade SharpeningMower Blade Replacement Traction Drive Belt Replacement Mower Deck RemovalTraction drive belt removal Traction drive belt replacement View from Underneath TractorDeck Drive Belt Battery Charging Battery Battery RemovalBattery Installation Battery StorageBattery Condition Chart State of Charge Digital Voltmeter Battery TestingRemove battery. Refer to section Battery Removal NEW Battery PreparationAvailable Accessories Available LT150H33IBV LT150H38IBV AccessoriesSchematic Wiring Harness P.N Schematic Wiring Harness P.N LT150H38HKVLT160H33IBV & LT160H38IBV Problem Probable Cause Corrective ActionTractor Will Not 1. Speed control handle in the neutral N PositionEngine speed too slow LT160H33IBV Tractor Drive Belts Mower BladesNinja LT160H38IBVYear Limited Warranty Disclaimer of WarrantyPrimary Maintenance Primary Maintenance Primary Maintenance Primary Maintenance Snapper Product Registration Form Lawn Tractor Hydrostatic Drive Series