John Deere L17.542 Manual De Usuario

Troubleshooting - 52

Troubleshooting

If you are experiencing a problem that is not listed in this 
chart, see your John Deere distributor for service.

When you have checked all the possible causes listed and 
you are still experiencing the problem, see your John Deere 
distributor.

Poor Engine Performance

Dirt in fuel system or fuel is old. Replace fuel with fresh stabilized 
fuel. Obtain fuel from another supplier before suspecting machine 
problems. Suppliers blend fuels differently and changing suppliers 
will generally solve any performance problems

Fuel blended with alcohol or ether may contribute to performance 
problems by causing gum and varnish deposits, especially if fuel is 
stored for several weeks or more. Obtain fresh fuel.

Engine Will Not Start

Brake pedal not depressed.

PTO is engaged.

Spark plug wire is loose or disconnected.

Improper fuel.

Plugged fuel filter.

Defective safety switch.

Electrical problem - See Electrical Troubleshooting Section

Engine Is Hard To Start

Carburetor is not adjusted properly or dirty.

Plugged fuel filter.

Faulty spark plug.

Stale or improper fuel.

Loose or corroded electrical connections.

Engine oil viscosity.

Engine Runs Unevenly

Cooling fins plugged.

Loose electrical connections.

Choke or throttle cable sticking.

Fuel line or fuel filter plugged.

Stale or dirty fuel.

Improper fuel.

Air cleaner element plugged.

Engine Misses Under Load

Faulty spark plug.

Stale or dirty fuel.

Plugged fuel filter.