Murray 425016x48A 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.Check the wiring harness for damage or a loose connection. Repair the damaged wire.

2.Transmission is in reverse. Before operating in reverse, move the blade rotation control to the DISENGAGED position.

PROBLEM: On slopes, the engine stops.

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

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.

PROBLEM: The unit will not move when the clutch is engaged.

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

2.Adjust the clutch.

3.Replace the motion drive belt.

PROBLEM: The unit moves slower or stops when the clutch is engaged.

1.Adjust the clutch.

2.Replace the motion drive belt.

PROBLEM: When the clutch/brake pedal is released, belt noise can be heard.

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).

PROBLEM: The engine stops when the operator leaves the seat.

1.This is normal. The operator presence system is designed to allow operation only if the operator is in the seat.

PROBLEM: The engine stops when selecting reverse travel.

1.Before selecting reverse travel, move the blade rotation control to the DISENGAGE position. See the Operation section for de- tails.

PROBLEM: The transaxle is difficult to shift between gears with the engine running and the clutch depressed.

1.Check the clutch adjustment to make sure the belt stops when the clutch pedal is depressed with the transaxle in (N) neutral.

2.Check the belt guides around the transaxle drive pulley. Make sure the belt guides do not touch the pulley.

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Contents Model Table of Contents Environmental Awareness OWNER’S InformationII. Slope operation Safe Mowing Guide Safe Mowing Guide Safe Mowing Guide Before Mowing Steps to FollowControl And Operating Pictorials Safety Warning PictorialsInternational Pictorials International PictorialsAssembly AssemblyHOW to Assemble the Steering Wheel HOW to Install the SeatHOW to Install the Battery Cables HOW to Assemble the Gauge WheelsMaintenance Free Battery HOW to Charge Maintenance Free BatteryCheck the Tires HOW to Prepare the EngineCheck the Level of the Mower Housing IMPORTANT! Before YOU Start MowingLift Lever OperationLocation of Controls Attachments Electrical Safety SystemHOW to Operate the Ignition KEY Switch HOW to USE the Throttle ControlSee the Instruction Book for the Attachment HOW to USE Blade Rotation ControlHOW to USE the Shift Lever HOW to Transport the Unit HOW to SET the Parking BrakeHOW to Change the Cutting Height HOW to Stop the UnitHOW to Operate the Unit on Hills HOW to Operate with the Mower HousingCarburetor HOW to Start the EngineBefore Starting the Engine Mowing and Bagging Tips Operating TipsGeneral Recommendations MaintenanceFrequency Maintenance Required Comments HOW to Check the MufflerInspect Blade HOW to Remove and Install the BladeHOW to Sharpen the Blade HOW to Adjust the Blade Rotation Control HOW to Check and Adjust the Drive Brake HOW to Check and Adjust the ClutchDisconnect the adjuster nut from the shifter bracket Figure HOW to Adjust the Shift LeverHOW to Check the Fuel Filter Where to LubricateHOW to Install the Mower Housing HOW to Remove the Mower HousingHOW to Adjust the Gauge Wheels HOW to Level the Mower Housing Removal HOW to Replace Motion Drive BeltInstallation HOW to Replace the Mower Drive Belt Front Wheel HOW to Install the WheelsBattery HOW to Replace the FuseHOW to Replace the Light Bulb HOW to Clean the Mower HousingTrouble Shooting Chart USA 050746L050746L Chassis & Hood Repair PartsKey Description Motion Drive Motion Drive Repair Parts Steering Key Part Description Mower Housing Suspension Key Description Mower Housing Complete Mower Housing Assy Repair Parts Engine Mount Engine Mount Model Electrical System 050746L 050746L 050746L Index Model No Bushel Capacity Model No