Snapper LT180H33 IBV, LT180H38 IBV Problem Probable Cause, Corrective Action

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TROUBLESHOOTING GUIDE

PROBLEM

 

PROBABLE CAUSE

Starter Will Not

1.

Battery dead.

Crank Engine

2.

Blown fuse.

 

 

3.

Electrical connections loose or corroded.

 

 

4.

Defective ignition switch.

 

 

5.

Starter Spins without engaging.

 

 

 

 

Engine Will Not

1.

Blade engagement switch in the “ON”

 

Start

 

position.

2.Park brake not set.

3.Fuel tank empty.

4.Engine needs choking.

5.Spark plug wire disconnected.

6.Battery weak or dead.

7.Faulty interlock switch.

Engine Stalls After 1. Operator not in seat.

Running 2. Engine speed control in the “CHOKE”

position.

3.Fuel tank empty.

4.Engine air pre-cleaner and or air cleaner dirty.

5.Spark plug defective or gap set improperly.

6.Fuel filter stopped up.

7.Water, debris or stale fuel in fuel system.

Engine Loses 1. Excessive load on engine.

Power

2.Engine air pre-cleaner or air cleaner dirty.

3.Engine oil level low.

4.Engine cooling fins and air screens excessively dirty.

5.Spark plug faulty.

6.Water, debris or stale fuel in fuel system.

Engine Backfires

1.

Engine speed control set too “FAST”.

When Turned To

 

 

“STOP”

 

 

Excessive

1.

Damaged or bent mower blades.

Vibration

 

 

 

2.

Loose blade components.

 

3.

Loose or missing air lift (if equipped).

CORRECTIVE ACTION

1.Service battery.

2.Replace fuse.

3.Clean and check connections for good contact.

4.Contact authorized SNAPPER dealer.

5.Release Start key and repeat attempt. If starter continues to spin contact Engine Dealer.

1.Move blade engagement switch to “OFF”.

2.Set park brake.

3.Fill fuel tank with fresh fuel.

4.Move engine speed control to “CHOKE”.

5.Place spark plug wire onto spark plug.

6.Service battery.

7.Contact authorized SNAPPER dealer.

1.Sit in operator’s seat.

2.Move engine speed control to “FAST”.

3.Fill with fuel to proper level.

4.Clean free of all debris.

5.Service spark plug.

6.Replace fuel filter.

7.Drain and clean fuel system.

1.Lessen load by slowing ground speed.

2.Clean or replace filters.

3.Fill with engine oil to proper level.

4.Clean free of all debris.

5.Service spark plug.

6.Drain and clean fuel system.

1.Set engine speed control to “SLOW” and allow engine to idle. Then, turn key to “OFF”.

1.Service mower blade(s).

2.Service and tighten loose parts.

3.Replace air lifts. Tighten to proper torque.

(Continued on next Page)

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Contents 180 Model Number ExplanationFrom Previous Column Important Safety InstructionsSafe Handling of Gasoline Towing Table of Contents Controls ComponentsOPERATOR’S Seat Adjustment Front to Rear Adjustment PRE-START ChecklistOFF Starting & Operation Starting EngineStopping Wheel Drive Starting & Operation 2.3.2. Starting Wheel DriveStarting Mower Blade Releasing Park Brake Setting Park BrakeCutting Height Adjustment Stopping Stopping Mower BladeRolling Tractor with Engine OFF 2.6.1. Rolling Hydro Models Reverse Lockout Mechanism Override Reverse Lockout MechanismCheck Blade Brake Service After First 5 HoursIntroduction Change Engine OILCheck 38 Deck Drive Belt Service Every 25 Operating Hours Check EngineCheck Mower Blade Check 33 Deck Drive BeltTractor Lubrication Mower ComponentsService Annually Engine should Start if Service Annually 3.4.2. Fuel FilterSpark Plug Hydrostatic Transmission OIL Engine Must not Start ifDeck Blade Brake Adjustment Engine Adjustments & RepairBlade Brake Adjustment On next Blade Belt Adjustment 33 DeckBlade Belt Adjustment 38 Deck Side View of Deck Adjusting Mower Blade 33 Deck from previousFrom previous Deck Level Adjustment Side to SideDeck Level Adjustment Front to Rear Sector Plates Deck Level Adjustment Front to Rear Front Lift RODFront of Tractor Rear to Front View of Deck Deck Level Adjustment Front to RearTractor Drive Components Brake Adjustment Shifter Adjustment Steering AdjustmentMounting Ninja Blade Sharpening Mower Blade Service Standard Blade Wear LimitsNinja Blade Wear Limits Standard Blade SharpeningTraction Drive Belt Replacement Mower Deck Removal Mower Blade ReplacementTraction drive belt removal View from Underneath Tractor Traction drive belt replacementDeck Drive Belt Battery Storage Battery Battery RemovalBattery Installation Battery ChargingNEW Battery Preparation Battery TestingRemove battery. Refer to section Battery Removal Battery Condition Chart State of Charge Digital VoltmeterAvailable LT150H33IBV LT150H38IBV Accessories Available AccessoriesLT160H33IBV & LT160H38IBV Schematic Wiring Harness P.NSchematic Wiring Harness P.N LT150H38HKV Corrective Action Problem Probable CauseEngine speed too slow Tractor Will Not 1. Speed control handle in the neutral NPosition LT160H38IBV Tractor Drive Belts Mower BladesNinja LT160H33IBVDisclaimer of Warranty Year Limited WarrantyPrimary Maintenance Primary Maintenance Primary Maintenance Primary Maintenance Snapper Product Registration Form Lawn Tractor Hydrostatic Drive Series