| Symptom |
Problem |
Solution |
| Battery will not charge |
Loose or corroded connections. |
Clean and tighten connections. |
| Sulfated or worn-out battery. |
Check electrolyte level and specific gravity. |
| Loose or defective alternator/fan belt. |
Adjust belt tension or replace belt. |
|
| Charging system indicator glows
with engine running |
Low engine speed. |
Increase speed. |
| Defective battery. |
Check electrolyte level and specific gravity. |
| Defective alternator. |
See your John Deere dealer. |
| Slipping alternator/fan belt. |
Adjust belt tension. |
|
| Starter inoperative |
Range shift lever in gear. |
Move lever to neutral. |
| PTO lever in engaged position. |
Move PTO lever to disengaged position. |
| Low battery output. |
See your John Deere dealer. |
| Blown fuse. |
Replace fuse. |
|
| Starter cranks slowly |
Low battery output. |
Check electrolyte level and specific gravity. |
| Crankcase oil too heavy. |
Use proper viscosity oil. |
| Loose or corroded connections. |
Clean and tighten loose connections. |
|
| Light system does not function;
rest of electrical system functions |
Blown fuse. |
Replace fuse. |
|
| Entire electrical system does not
function |
Faulty battery connections. |
Clean and tighten connections. |
| Sulfated or worn-out battery. |
Check electrolyte level and specific gravity. |
| Blown fuse. |
Replace fuse. |
|
| Relay(s) sticking or nonfunctional; repeated failures |
Diode to protect circuit from arcing has failed. |
See your John Deere dealer. |
|
