Troubleshooting – Hayter Mowers RT380H User Manual
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Troubleshooting
Problem
Possible Cause
Corrective Action
1. The blade control (PTO) is engaged.
1. Disengage the blade control (PTO).
2. The parking brake is not on.
2. Set the parking brake.
3. The battery is dead.
3. Charge the battery.
4. The electrical connections are corroded
or loose.
4. Check the electrical connections for
good contact.
5. A fuse is blown.
5. Replace the fuse.
The starter does not crank.
6. A relay or switch is damaged.
6. Contact an Authorized Service Dealer.
1. The operator is not seated.
1. Sit on the seat.
2. The fuel tank is empty.
2. Fill the fuel tank with petrol.
3. The air cleaner is dirty.
3. Clean or replace the air cleaner
element.
4. The spark plug wire is loose or
disconnected.
4. Connect the wire to spark plug.
5. The spark plug is pitted, fouled, or the
gap is incorrect.
5. Install a new, correctly gapped spark
plug.
6. The choke is not closing.
6. Adjust the throttle cable.
7. There is dirt in the fuel filter.
7. Replace the fuel filter.
8. The idle speed is too low or the mixture
is incorrect.
8. Adjust the carburettor idle speed and
idle mixture.
The engine will not start, starts hard, or
fails to keep running.
9. Dirt, water, or stale fuel is in the fuel
system.
9. 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
under the engine blower housing are
plugged.
4. Remove the obstruction from the
cooling fins and air passages.
5. The spark plug is pitted, fouled, or the
gap is incorrect.
5. Install a new, correctly gapped spark
plug.
6. The vent hole in the fuel cap is plugged.
6. Clean or replace the fuel cap.
7. There is dirt in fuel filter.
7. Replace the fuel filter.
The engine loses power.
8. Dirt, water, or stale fuel is in the fuel
system.
8. 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.
The engine overheats.
3. The cooling fins and air passages
under the engine blower housing are
plugged.
3. Remove the obstruction from the
cooling fins and air passages.
1. The blades are bent or unbalanced.
1. Install new blades.
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. There is a loose engine pulley, idler
pulley, or blade pulley.
4. Tighten the appropriate pulley.
There is an abnormal vibration.
5. The engine pulley is damaged.
5. Contact an Authorized Service Dealer.
1. The blade drive belt is worn, loose, or
broken.
1. Install a new blade drive belt.
The blades do not rotate.
2. The blade drive belt is off of the pulley.
2. Install the blade drive belt and check
the idler pulley and belt guides for the
correct position.
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