Engine Starting Between 0°C and -32°C (32°F and -25°F)

56 TM5-2430-200-10 Operating Section Engine Starting Engine Starting Between 0°C and -32°C (32°F and -25°F) DO NOT SPRAY ETHER or other starting fluids into the air intake. This diesel engine is equipped with an electric air intake heater system to aid cold weather starting and reduce white smoke. Do not spray ether into the air inlet. It could contact the heater elements and cause an explosion. Use ONLY the start-aid system or immediate engine damage and personal injury may result. NOTICE Inject starting aid (ether) only after initial start-up, until the engine is running smoothly. Wait approximately three seconds before each ether injection. Use ether for cold starting purposes only, as directed. Use ether sparingly. Excessive ether without cranking can cause piston and ring damage. 1. Follow Steps 1 through 7 of “Engine Starting Above 0°C (32°F),” in this section. 2. If start-aid indicator (1) comes on, wait until the indicator turns off (approximately 30 seconds) before attempting to start the engine. 3. When start-aid indicator (1) has turned off, hold engine start switch in the START position to crank the engine. 4. If the engine does not start after 15 to 30 seconds of cranking, release the engine start switch and move it to the ON position to allow the intake air heater to operate. Wait approximately 30 seconds to allow the starting motor to cool and intake air to heat before cranking the engine again. Repeat Steps 2 through 4 until the engine starts. NOTE: Do not use ether to help start the engine at temperatures above -32°C (-25°F). At warmer temperatures, ether reduces the amount of oxygen available for combustion, which makes the engine more difficult to start. NOTICE Do not keep the starting motor engaged for more than 60 seconds at a time. Wait 30 seconds to allow the starting motor to cool and inlet air to heat before trying again. If the engine does not start after three attempts, determine the cause of the malfunction. Pumping the accelerator pedal will not assist in starting the engine. 5. Release the engine start switch into the ON position after the engine reaches 1000 rpm. If the engine runs roughly, operate start-aid switch (3) manually to inject ether sparingly until the engine is running smoothly. NOTE: The ECM will disengage the starter at 600 rpm. Holding the starter engaged after the engine has started will not damage the starter. NOTICE Do not increase engine speed until the oil pressure gauge indicates normal (between 250 and 450 kPa (30 and 70 psi)). The engine oil pressure indicator should go off, and the oil pressure should raise within 15 seconds after the engine starts. If oil pressure is not indicated on the gauge within 15 seconds, do not drive the machine. Stop the engine, and report the problem to Unit Maintenance. Do not operate the machine until the problem has been corrected. NOTE: Applying a light load will help the engine reach normal operating temperature sooner. When idling in cold weather, the ECM will increase the engine speed to approximately 1000 to 1200 rpm. Do not race the engine to speed warm-up.