
Troubleshooting
Problem
Possible Cause
Corrective Action
1. The blade control (PTO) is engaged.
1. Move the blade control (PTO) to the
disengaged position.
2. The parking brake is not on.
2. Set the parking brake.
3. The operator is not seated.
3. Sit on the seat.
4. The battery is dead.
4. Charge the battery.
5. The electrical connections are corroded
or loose.
5. Check the electrical connections for
good contact.
6. The fuse is blown.
6. Replace the fuse.
The starter does not crank.
7. The relay or switch is defective.
7. Contact an Authorized Service Dealer.
1. The fuel tank is empty.
1. Fill the fuel tank with fuel.
2. The air cleaner is dirty.
2. Clean or replace the air cleaner
element.
3. Dirt is in the fuel filter.
3. Replace the fuel filter.
The engine will not start, starts hard, or
fails to keep running.
4. Dirt, water, or stale fuel is in the fuel
system.
4. Contact an Authorized Service Dealer.
1. The engine load is excessive.
1. Reduce the ground speed.
2. The air cleaner is dirty.
2. Clean the air cleaner element.
3. The oil level in the crankcase is low.
3. Add oil to the crankcase.
4. The cooling fins and air passages
above the engine are plugged.
4. Remove the obstruction from the
cooling fins and air passages.
5. The vent hole in the fuel cap is plugged.
5. Clean or replace the fuel cap.
6. Dirt is in the fuel filter.
6. Replace the fuel filter.
The engine loses power.
7. Dirt, water, or stale fuel is in the fuel
system.
7. Contact an Authorized Service Dealer.
1. The engine load is excessive.
1. Reduce the ground speed.
2. The oil level in the crankcase is low.
2. Add oil to the crankcase.
3. The cooling fins and air passages
above the engine are plugged.
3. Remove the obstruction from the
cooling fins and air passages.
4. The coolant level in radiator is low.
4. Add coolant.
The engine overheats.
5. Electric fan does not have power or is
not working correctly.
5. Check for blown 40A fan fuse. Contact
an Authorized Service Dealer.
1. The by pass valve is not closed tight.
1. Tighten the by pass valve.
2. The drive or pump belt is worn, loose
or broken.
2. Change the belt.
3. The drive or pump belt is off a pulley.
3. Change the belt.
4. The idler spring is broken or missing.
4. Replace the spring.
The machine does not drive.
5. The hydraulic fluid level is low or too
hot.
5. Add hydraulic fluid to the reservoir or
let it cool down.
1. The cutting blade(s) is/are bent or
unbalanced.
1. Install new cutting blade(s).
2. The blade mounting bolt is loose.
2. Tighten the blade mounting bolt.
3. The engine mounting bolts are loose.
3. Tighten the engine mounting bolts.
4. The engine pulley, idler pulley, or blade
pulley is loose.
4. Tighten the appropriate pulley.
5. The engine pulley is damaged.
5. Contact an Authorized Service Dealer.
6. The blade spindle is bent.
6. Contact an Authorized Service Dealer.
Abnormal vibration.
7. The motor mount is loose or worn.
7. Contact an Authorized Service Dealer.
61
Summary of Contents for Z580-D
Page 6: ...Slope Chart 6 ...
Page 63: ...Schematics Wire Diagram Rev A 63 ...
Page 64: ...Notes 64 ...
Page 65: ...Notes 65 ...
Page 66: ...Notes 66 ...