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5. To stop engine, move throttle control backward to
SLOW position, move PTO switch to OFF position and
rotate ignition key to OFF. Remove key from switch to
prevent accidental starting.
Checking Interlock System
The purpose of the safety interlock system is to prevent the
engine from cranking or starting unless the traction pedal is
in neutral and the PTO switch is in the OFF position. In
addition, the engine will stop when the PTO control is
engaged or traction pedal is depressed with operator off the
seat or when parking brake is engaged.
Caution
If safety interlock switches are disconnected or
damaged the machine could operate unexpectedly
causing personal injury.
• Do not tamper with the interlock switches.
• Check the operation of the interlock switches
daily and replace any damaged switches before
operating the machine.
• Replace switches every two years regardless of
whether they are operating properly or not.
1. Move PTO switch to OFF position and remove foot
from traction pedal so it is fully released.
2. Rotate the ignition key to START. Engine should crank.
If engine cranks, proceed to step 3. If engine does not
crank, there may be a malfunction in the interlock
system.
3. Raise off the seat and engage the PTO switch while the
engine is running. The engine should stop within 2
seconds. If engine stops, the switch is operating
correctly; thus, proceed to step 4. If engine does not
stop, there is a malfunction in the interlock system.
4. Raise off the seat and depress the traction pedal while
engine is running and the PTO lever is disengaged. The
engine should stop within 2 seconds. If engine stops, the
switch is operating correctly; thus, proceed to step 5 If
engine does not stop, there is a malfunction in the
interlock system.
5. Engage the parking brake. Depress the traction pedal
while engine is running and the PTO lever is
disengaged. The engine should stop within 2 seconds. If
engine stops, the switch is operating correctly; thus,
continue operation. If engine does not stop, there is a
malfunction in the interlock system.
Pushing Or Towing the
Traction Unit
In an emergency, the traction unit can be pushed or towed
for a very short distance. However, Toro does not
recommend this as standard procedure.
Important
Do not push or tow the traction unit faster
than 2 to 3 mph (3.2 to 4.8 Km/hr) because transmission
may be damaged. If the traction unit must be moved a
considerable distance, transport it on a truck or trailer.
Whenever traction unit is pushed or towed, by-pass valve
must be open.
1. Loosen the knob and remove the access cover at the
rear of the seat mounting plate (Fig. 25).
1. Access cover knob
2. Depress and hold the pins located in the center of the
two (2) check valve assemblies in the top of the
transmission (Fig. 26) while pushing or towing the
machine. Figure 26 is shown with seat and seat
mounting plate removed.
1. Transmission check valve
by–pass pins (2)
28
1
Figure 25
1
Figure 26
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