Troubleshooting - Toro 23515 Service Manual

Troubleshooting

Problem
Engine will not start.
The machine vibrates abnormally.
The machine will not pull itself up
hills.
The front wheels move but the tines
do not.
The engine smokes when starting.
The engine is hard to start after
transporting it.
The ground speed is slow.
The tines drop out of transport when
the handle is folded over.
Toro 21" Aerator Service Manual
SPECIFICATIONS & MAINTENANCE
Possible Cause
1. The throttle lever is in the Off
position.
2. The spark plug is disconnected.
3. The fuel is turned off.
4. The traction lever is not in neutral.
1. Loose bolts and/or broken parts.
1. The drive belt to the hydrostatic
pump is loose.
1. A chain or drive sprocket is
broken.
1. The engine was tipped forward.
1. The fuel valve was not closed
before transport and the engine is
flooded.
1. The drive or pump belt is worn,
loose, or broken.
2. The engine idle is not set properly.
3. The chains are not properly
tensioned.
1. Tine-control lever is out of
adjustment.
Corrective Action
1. Move the throttle lever to the
Choke position.
2. Connect the spark plug.
3. Open the fuel valve.
4. Release the traction lever so it
returns to neutral.
1. Stop the machine and engine
immediately. Replace any broken
or missing parts.
1. Check and tighten the pump drive
belt.
1. Replace the broken chain or
sprocket.
1. Check the air cleaner and
replace it if it is fouled. Always tip
the machine back when servicing.
1. Always close the fuel valve before
transporting the machine.
1. Check and tighten the pump drive
belt, or change the belt.
2. Contact an Authorized Service
Dealer.
3. Adjust the tine drive chain.
1. Adjust the tine-control lever.
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