Stopping The Traction Unit; Moving A Non-Functioning Traction Unit; Using The Cylinder Lock - Toro TX 420 Operator's Manual

4. Turn the ignition key to the start position. When the
engines starts, release the key.
Important Do not engage the starter for more than 10
seconds at a time. If the engine fails to start, allow a 30
second cool-down period between attempts. Failure to
follow these instructions can burn out the starter motor.
5. After the engine starts, gradually push the choke down.
If the engine stalls or hesitates, pull the choke out
again until the engine warms up.
6. Move the throttle lever to desired setting.
Important If the engine is run at high speeds when the
hydraulic system is cold (i.e., when the ambient air
temperature is near freezing or lower), hydraulic system
damage could occur. When starting the engine in cold
conditions, allow the engine to run in the middle throttle
position for 2 to 5 minutes before moving the throttle to
fast (rabbit).
Note: If outdoor temperature is below freezing, store the
traction unit in a garage to keep it warmer and aid in
starting.
Stopping the Engine
1. Move the throttle lever to the slow (turtle) position.
2. Lower the loader arms to the ground.
3. Turn the ignition key off.
Note: If the engine has been working hard or is hot, let it
idle for a minute before turning the ignition key off. This
helps cool the engine before it is stopped. In an
emergency, the engine may be stopped immediately.

Stopping the Traction Unit

To stop the traction unit, release the traction control, move
the throttle lever to slow (turtle), lower loader arms to the
ground, and stop the engine. Set the parking brake and
remove the key.
Caution
A child or untrained bystander could attempt to
operate the traction unit and be injured.
Remove the key from the switch when leaving the
traction unit, even if just for a few seconds.
Moving a Non-functioning
Traction Unit
Important Do not tow or pull the traction unit without
first opening the tow valves, or the hydraulic system will
be damaged
1. Stop the engine.
2. Open the rear access cover; refer to Opening the Rear
Access Cover, page 24.
3. Using a wrench, turn the tow valves on the hydraulic
pumps twice counter-clockwise (Fig. 12).
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m-7671
Figure 12
1. Left tow valve (right track)
4. Tow the traction unit as required.
5. When the traction unit has been repaired, close the tow
valves before operating it.

Using the Cylinder Lock

Warning
The loader arms may lower when in the raised
position crushing anyone under them.
Install the cylinder lock before performing
maintenance that requires raised loader arms.
Installing the Cylinder Lock
1. Remove the attachment.
2. Raise the loader arms to the fully raised position.
3. Stop the engine.
4. Remove the hairpin cotter and clevis pin securing the
cylinder lock to the loader arm (Fig. 13)
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2
2. Right tow valve (left track)