SUPPORT AS-RADIATOR 2W9121 - Caterpillar

Do not use aerosol types of starting aids such as ether. Such use could result in an explosion and personal injury.
Refer to the Service Manual for your type of controls. Use the following procedure to start the engine.
Move the throttle lever to the low idle position before you start the engine. Note: If necessary, increase the throttle position so that the engine will start in cold conditions. The engine speed should not exceed 1500 rev/min until the oil pressure has increased.
Do not operate the glow plugs for more than 30 seconds at one time. Damage to the glow plugs could occur.
Turn the engine start switch to the HEAT position. Hold the engine start switch in the HEAT position for 6 seconds until the glow plug indicator light illuminates. This will activate the glow plugs and aid in the starting of the engine.
Do not crank the engine for more than 30 seconds. Allow the electric starting motor to cool for two minutes before cranking the engine again.
While the glow plug indicator light is illuminated, turn the engine start switch to the START position and crank the engine.
When the engine starts, release the engine start switch.
Slowly move the throttle lever to the low idle position and allow the engine to idle. Refer to the Operation and Maintenance Manual, "After Starting Engine" topic. Note: If the glow plug indicator light illuminates rapidly for 2 to 3 seconds, or if the glow plug indicator light fails to illuminate, a malfunction exists in the cold start system. Do not use ether or other starting fluids to start the engine.
If the engine does not start, release the engine start switch and allow the electric starting motor to cool. Then, repeat steps 2 through step 5.
Turn the engine start switch to the OFF position in order to stop the engine.