Toro TITAN HD Service Manual page 70

Troubleshooting
Problem
The starter does not crank
The engine does not start,
starts hard, or fails to keep
running
4-2
Table of Contents
TROUBLESHOOTING
Possible Cause
The blade control switch (PTO) is
engaged.
The parking brake is not engaged.
The motion-control levers are not in
the Neutral-Lock position.
The operator is not seated.
The battery is dead.
The electrical connections are
corroded or loose.
The fuse is blown.
The relay or switch is worn or
damaged.
The fuel tank is empty.
The fuel shut-off valve is closed.
The oil level in the crankcase is low.
The throttle is not in the correct
position.
There is dirt in the fuel filter.
There is dirt, water, or stale fuel in
the fuel system.
The air cleaner is dirty.
The seat switch is not functioning
properly.
The electrical connections are
corroded, loose, or damaged.
The relay or switch is worn or
damaged.
The spark plug is fouled or
improperly gapped.
The spark plug wire is not
connected.
Digital Edition - TITAN® HD Service Manual
January 2018
Next Step...
Move the blade-control switch (PTO)
to the disengaged position.
Set the parking brake.
Ensure that the motion-control levers
are in the Neutral-Lock position.
Sit on the seat.
Charge the battery.
Check the electrical connects for
good contact.
Replace the fuse.
Test and replace faulty relay or
switch.
Fill the fuel tank.
Open the fuel shut-off valve.
Add oil to the crankcase.
Be sure that the throttle control is
midway between the slow and fast
positions.
Replace the fuel filter.
Clean and flush the fuel system.
Clean or replace the air cleaner
element.
Check the seat-switch indicator.
Replace the seat if necessary.
Check the electrical connections for
good contact. Clean the connector
terminals thoroughly with electrical-
contact cleaner, apply dielectric
grease, and make the appropriate
connections.
Test and replace faulty relay or
switch.
Adjust or replace the spark plug.
Check the spark plug wire
connection.