Hobart 500062-DLX, Operation And Maintenance Manual With Illustrated Parts List

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OM-2226 / Operation and Maintenance Manual
60CU20 / Series 500062 / 400 Hz. Generator Set
May 2, 2013 Chapter 1-1
Page 24
10) Cold Weather Starting System (BH1)
The intake air heater, located on the intake manifold, is used for starting the engine at very cold
temperatures and reduces the white smoke associated with a cold start. This cold weather starting
system is fully automatic once engaged by the operator (Chapter 1, Section 3). The intake air heater (or
grid heater) is energized or de-energized from a power relay controlled by the ECM. The amount of time
the air intake heaters stay on, in the preheat phase, is a function of the intake manifold temperature at
start up. (The pre-heat time increases with colder intake manifold temperatures). The maximum duration
of the pre-heat phase is around 30 seconds. During cranking, the intake air heater is turned off to allow
maximum current to be used by the starter.
CAUTION
Never use an ether start system in conjunction with the air intake heater.
Figure 14: Air Intake Heater
Air Intake Heater