Operating The Engine - Toro 25450A Operator's Manual

Operating the Engine

Before Starting the Engine
1. Check the oil level; refer to
Level (page 25).
2. Ensure that the battery-disconnect switch is in the On
position; refer to Battery-Disconnect Switch (page
3. Adjust the seat position, fasten the seat belt, and ensure
that the seat is facing forward.
Note: The seat interlock system prevents you from
operating the machine unless you are sitting in the
operator seat. If you do not remain seated and
the control levers are not in the Neutral position,
the system will stop both the ground drive and the
attachment drive in 1 second. Do not set a weighted
object on the seat, bypass the seat interlock system,
or tamper with the system.
4. Set the parking-brake switch to the On position; refer
to Parking-Brake Switch (page
5. Ensure that all control levers are in the Neutral or
the Stop position; refer to
Utility-Traction Joystick (page
/ Trencher-Motor Joystick (page
Note: If the machine is equipped with a backhoe,
ensure that the engine shutoff control is pulled up.
Starting the Engine
WARNING
Before starting the engine, sit in the operator seat,
fasten the seat belt, apply the parking brake, and
ensure that the transmission direction control and
digging control levers are in the Neutral position.
Warn all bystanders that you are starting the engine.
Important: When you start the engine, the transmission
is automatically set to first gear and the auto centering
for the rear steering (optional advanced-steering kit) is
in the manual mode.
Note: In extreme hot or cold weather, take the necessary
precautions; refer to Operating the Machine in Extreme
Conditions (page 35).
1. Turn the key switch to the On position and check that
all controls are in the Neutral position.
Note: The low engine-oil pressure indicator and the
check alternator or battery displays when the key switch
is in the On position and the engine is not running.
Note: In cold weather, the wait-to-start-engine
indicator displays to alert the operator to wait for the
intake air to warm up before starting. When the intake
Checking the Engine-Oil
21).
17).
Foot Pedal (page 18),
18), and Vibratory-Plow
19).
air is at the proper temperature for starting the engine,
the wait-to-start indicator in the display turns off.
2. Turn the key switch to the Start position.
Note: If the engine starts and then stops, do not
turn the key switch to the Start position again until the
starter motor has stopped turning.
Important: Do not operate the starter motor until
it stops turning. Do not operate the starter motor
for more than 30 seconds at one time. Allow the
starter motor to cool for 30 seconds before you
operate it again. When you engage the starter
motor, you should see white or black smoke
coming from the exhaust pipe; if you do not, check
the fuel supply.
3. When the engine starts, check the command-control
display to ensure that the indicator readings are correct.
If any of the indicators appear on the display, stop the
engine and check the problem.
4. Run at the engine at 1100 rpm until the coolant is
warm; refer to Setting the Engine Speed (page
5. Cycle all the machine components before operating the
machine, and check all the controls and components to
ensure that they are working properly.
Note: If the engine is new or newly rebuilt, refer to
Breaking in a New or Rebuilt Engine (page
Setting the Engine Speed
Note: Do not run the engine at full throttle below the peak
torque rpm (refer to the engine data plate for the peak torque
rpm) for more that 30 seconds.
Note: Do not run the engine at a low idle speed for long
periods of time, because it causes a low operating temperature
that can allow acids and deposits to form in the engine oil.
Note: Do not operate the engine at full throttle below the
peak torque rpm (refer to the engine data plate for peak
torque rpm) for more than 30 seconds. Operating the engine
at full throttle below the peak torque will seriously damage it.
•
To increase the engine speed, push button 7 on the
command center (Figure
•
To decrease the engine speed, push button 8 on the
command center (Figure
34
34).
35).
43).
43).