Engine Starting Below -320C (-250F)
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.
Do not operate the engine coolant heater in an
enclosed area. The heater produces combustion
gases which may be harmful to your health.
Always start and operate the heater in a well-
ventilated area and, if in an enclosed area, vent the
exhaust to the outside.
1. Press switch (1) to start the engine coolant heater.
An indicator in the switch illuminates when the
engine coolant heater is ON. Allow the engine
coolant heater to operate for 40 minutes.
2. Press switch (1) to shut the engine coolant heater
off. Wait for three minutes before attempting to start
Do not start the engine for three minutes after using
the engine coolant heater. The engine coolant heater
requires three minutes to complete the shutdown cycle.
Damage to the engine coolant heater may result if the
engine is started without a three-minute wait to purge the
3. Follow Steps 1 and 2 of Engine Starting Between
00C and -320C (320F and -250F) in this section.
4. Hold the engine start switch in the START position.
5. After five to ten seconds of cranking, inject ether by
pressing and holding the start-aid switch for three
seconds, and then releasing it. Repeat the injection
of ether every 10 to 15 seconds while cranking the
Do not keep the starting motor engaged for more than
90 seconds at a time. Wait one minute to allow the
starting motor to cool before trying to start the engine
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.
6. Release the engine start switch into the ON position
after the engine reaches 1000 rpm. If the engine
runs roughly, operate the start-aid switch manually
to inject ether sparingly until the engine is running
NOTE: The ECM will disengage the starter at 600 rpm.
Holding the starter engaged after the engine has started
will not damage the starter.
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 gauge 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 may increase the engine
speed to approximately 1000 to 1200 rpm. Do not race
the engine to speed warm-up.