Troubleshooting; Troubleshooting Chart - Murray LT155420 Manual De Instrucciones

Troubleshooting

Problem
The engine will not start.
The engine will not turn
over.
The engine is difficult to
start.
The engine does not run
smooth or has a loss of
power.
The engine does not run
smooth at fast speed.
The engine stops when
the blades are engaged.
On slopes, the engine
stops.
The engine will not idle.
A hot engine causes a
decrease in power.
Excessive vibration.
English
36 36

Troubleshooting Chart

Correction
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 position. Turn the ignition key to the ON
position. Try to start the engine several times. Install the spark plug.
5. Replace the spark plug.
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 Models: Replace the module.
1. Replace the spark plug.
2. Replace the fuel filter.
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. Replace the fuel filter.
1. Replace the spark plug.
2. Adjust the throttle control.
3. Clean the air filter.
4. Replace the fuel filter.
1. Check the wiring harness for damage or a loose connection. Repair the damaged wire.
3. Transmission is in reverse. Before operating in reverse, move the blade rotation control to the
DISENGAGE position.
1. Mow up and down slopes. Never mow across a slope.
1. Replace the spark plug.
2. Clean the air filter.
3. Adjust the throttle control.
4. Drain the fuel tank. Clean the fuel line. Replace the fuel filter.
1. Clean the air screen.
2. Check the oil.
3. Replace the fuel filter.
1. Replace the blade.
2. Check for loose engine bolts.
3. Decrease the air pressure in the tires.
4. Check for a damaged belt or damaged pulley. Replace the damaged parts.
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