Service Manual

SPECIFICATIONS & MAINTENANCE
2-23
Toro 21” Aerator Service Manual
2
Troubleshooting
Problem Possible Cause Corrective Action
Engine will not start.
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. 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.
The machine vibrates abnormally. 1. Loose bolts and/or broken parts.
1. Stop the machine and engine
immediately. Replace any broken
or missing parts.
The machine will not pull itself up
hills.
1. The drive belt to the hydrostatic
pump is loose.
1. Check and tighten the pump drive
belt.
The front wheels move but the tines
do not.
1. A chain or drive sprocket is
broken.
1. Replace the broken chain or
sprocket.
The engine smokes when starting. 1. The engine was tipped forward.
1. Check the air cleaner and
replace it if it is fouled. Always tip
the machine back when servicing.
The engine is hard to start after
transporting it.
1. The fuel valve was not closed
before transport and the engine is
ooded.
1. Always close the fuel valve before
transporting the machine.
The ground speed is slow.
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. Check and tighten the pump drive
belt, or change the belt.
2. Contact an Authorized Service
Dealer.
3. Adjust the tine drive chain.
The tines drop out of transport when
the handle is folded over.
1. Tine-control lever is out of
adjustment.
1. Adjust the tine-control lever.