Murray 425306x48A manual Trouble Shooting Chart

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TROUBLE SHOOTING CHART

PROBLEM: The engine will not start.

1.Follow the steps, “How To Start The Engine” in this book.

2.Electric-Start Models: Clean the battery terminals. Tighten the cables.

3.Drain the fuel tank. Clean the fuel line. Replace the fuel filter.

4.Remove the spark plug(s). Move the throttle to the SLOW posi- tion. Turn the ignition key to the ON position. Try to start the en- gine several times. Install the spark plug.

5.Replace the spark plug.

6.Adjust the carburetor.

PROBLEM: The engine will not turn over.

1.Follow the steps, “How To Start The Engine” in this book.

2.Electric-Start Models: Check the level of the acid in the battery. If needed, add water. Charge the battery.

3.Replace the fuse.

4.Check the wiring harness for damage or a loose connection. Repair the damaged wire.

5.Electric-Start Models: replace the solenoid. Recoil-Start Mod-

els: replace the module.

PROBLEM: The engine is difficult to start.

1.Adjust the carburetor.

2.Replace the spark plug.

3.Replace the fuel filter.

PROBLEM: The engine does not run smooth or has a loss of power.

1.Check the oil.

2.Clean the air filter.

3.Clean the air screen.

4.Replace the spark plug.

5.The engine is working too hard. Use a lower gear.

6.Adjust the carburetor.

7.Replace the fuel filter.

PROBLEM: The engine does not run smooth at fast speed.

1.Replace the spark plug.

2.Adjust the throttle control.

3.Clean the air filter.

4.Replace the fuel filter.

PROBLEM: The engine stops when the blades are engaged.

1.To activate the seat sensor, always sit in the middle of the seat.

2.Check the wiring harness for damage or a loose connection. Repair the damaged wire.

PROBLEM: On slopes, the engine stops.

1.Mow up and down slopes. Never mow across a slope.

2.To activate the seat sensor, always sit in the middle of the seat.

PROBLEM: The engine will not idle.

1.Replace the spark plug.

2.Clean the air filter.

3.Adjust the carburetor.

4.Adjust the throttle control.

5.Drain the fuel tank. Clean the fuel line. Replace the fuel filter.

PROBLEM: A hot engine causes a decrease in power.

1.Clean the air screen.

2.Check the oil.

3.Adjust the carburetor.

4.Replace the fuel filter.

PROBLEM: Excessive vibration.

1.Replace the blade.

2.Check for loose engine bolts.

3.Decrease the air pressure in the tires.

4.Adjust the carburetor.

5.Check for a damaged belt or damaged pulley. Replace the damaged parts.

PROBLEM: The grass does not discharge correctly.

1.Stop the engine. Clean the mower housing.

2.Raise the height of cut.

3.Replace or sharpen the blade(s).

4.Move the shift lever to a slower speed.

5.Move the throttle control to the FAST position.

6.Replace the spring for the blade idler.

PROBLEM: The mower housing does not cut level.

1.Check the air pressure in the tires.

2.Adjust the level of the mower housing.

3.Check the front axle. If the front axle does not freely pivot, loos- en the axle bolt(s).

PROBLEM: The mower blades will not rotate.

1.Check the mower drive belt. Make sure the belt is installed cor- rectly.

2.Replace the mower drive belt.

1.Check the motion drive belt. Make sure the belt is installed correctly.

2.Adjust the clutch.

3.Replace the motion drive belt.

1.Adjust the clutch.

2.Replace the motion drive belt.

1.Temporary belt noise does not change the operation of the unit. If belt noise is continuous, check the routing of the belt. Make sure the belt is inside all belt guides.

2.If the noise is continuous, adjust the clutch.

PROBLEM: The rear wheels spin over uneven terrain.

1.Check the front axle. If the front axle does not freely pivot, loos- en the axle bolt(s).

F-030750L

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Contents Model Table of Contents OWNER’S Information Environmental AwarenessII. Slope operation Safe Mowing Guide Safe Mowing Guide Safe Mowing Guide Steps to Follow Before MowingSafety Warning Pictorials International PictorialsInternational Pictorials Control And Operating PictorialsAssembly AssemblyHOW to Install the Seat HOW to Assemble the Steering WheelHOW to Assemble the Gauge Wheels Maintenance Free Battery HOW to Charge Maintenance Free BatteryHOW to Install the Battery Cables HOW to Prepare the Engine Check the Level of the Mower HousingIMPORTANT! Before YOU Start Mowing Check the TiresOperation Location of ControlsHOW to USE the Throttle Control AttachmentsHOW to USE the Speed Control Pedal HOW to Drive ForwardHOW to Change Directions HOW to Drive in ReverseHOW to SET the Parking Brake HOW to Change the Cutting HeightHOW to Stop the Unit HOW to Transport the UnitHOW to Operate with the Mower Housing HOW to Operate Automatic Drive Units on HillsHOW to Operate on a Hill HOW to Stop on a HillHOW to Start the Engine Before Starting the EngineCarburetor Check the OILOperating Tips Mowing and Bagging TipsMaintenance Frequency Maintenance Required CommentsHOW to Check the Muffler General RecommendationsHOW to Remove and Install the Blade HOW to Sharpen the BladeInspect Blade HOW to Adjust the Blade Rotation Control HOW to Check and Adjust the Clutch HOW to Check and Adjust the Drive BrakeHOW to Remove the Battery HOW to Clean the BatteryHOW to Charge the Battery Where to Lubricate HOW to Check the Fuel FilterHOW to Remove the Mower Housing HOW to Install the Mower HousingHOW to Adjust the Gauge Wheels HOW to Level the Mower Housing HOW to Replace Motion Drive Belts Engine Drive Belt RemovalEngine Drive Belt Installation To install the engine drive belt, reverse the above stepsTransaxle Drive Belt Installation Transaxle Drive Belt RemovalHOW to Replace the Mower Drive Belt HOW to Install the Wheels Front WheelHOW to Replace the Fuse HOW to Replace the Light BulbHOW to Clean the Mower Housing BatteryTrouble Shooting Chart MURRAY, INC. Lawn Mower Central Parts Distributors 030750LRepair Parts Chassis & HoodKey Description Motion Drive Key Steering Key Part Description Mower Housing Suspension Key Description Mower Housing 7601032 Repair Parts Engine Mount Engine Mount Repair Parts Electrical System Electrical System 030750L 030750L 030750L Index Lawn Sweeper Snow Blade Grass Bagger Snow ThrowerMulcher KIT Garden Tiller Mulcher KIT