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Murray 42586X9A - Trouble Shooting Chart; Engine Not Starting; Engine Not Turning Over; Engine Difficult to Start

Murray 42586X9A
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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 throttleto the SLOW posi-
tion. Turn the ignitionkey 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 ofthe acid inthe 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. Adjustthe carburetor.
2. Replacethesparkplug.
3, Replacethefuelfilter,
PROBLEM: The engine does not run smooth or has a
loss of power.
1. Check the oil,
2. Clean the air fitter.
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. Replacethesparkplug.
2. Adjustthe throttlecontrol,
3. Clean theair filter.
4, Replacethefuel filter.
PROBLEM: The engine stops when the blades are
engaged.
1. To activate the seat sensor, always sit inthe 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 inthe middle ofthe seat.
PROBLEM: The engine will not idle.
1. Replace the spark plug.
2. Clean the air filter.
3. Adjust the carburetor.
4. Adjustthe throttlecontrol.
5. Drainthe fuel tank.Cleanthefuel line.Replacethe 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 controlto the FAST position.
6. Replace the spring for the blade idler.
PROBLEM: The mower housing does not cut level,
1. Check the air pressure inthe tires.
2. Adjust the level of the mower housing.
3. Check the _Tontaxle. Ifthe front axle does not freely pivot, loos-
en the axle bolt(s),
PROBLEM: The mower blades will not rotate.
1. Checkthemowerdrivebelt.Makesurethebeltisinstalledcor-
rectly.
2. Replacethe mowerdrivebelt.
PROBLEM: The unit will not move when the brake is
released and the speed control pedal is depressed.
1. Check the motion drive belt. Make sure the belt is installed
correctly.
2. Adjust the clutch.
3. Replace the motion drive belt,
4. Release the Automatic Drive Disconnect under the seat.
PROBLEM: The unit moves slower or stops when the
speed control pedal is depressed.
1. Adjustthe clutch,
2. Replacethemotiondrivebelt,
PROBLEM: When the brake pedal is released, beR noise
can be heard.
1. Temporary belt noise does not changethe operation ofthe unit.
Ifbelt noise is continuous, check the routing of the belt. Make
sure the belt is inside all belt guides.
2. Ifthe noise is continuous, adjust the clutch.
PROBLEM: The rear wheels spin over uneven terrain.
1. Check the front axle. Ifthe front axle does not freely pivot, loos-
en the axle bolt(s).
F-9_1 31

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