TM10-4320-226-14
b. Tachometer/Hourmeter. The tachometer/hourmeter is a dual purpose gauge that operates when ther engine is running.
When S1 is on(Emergency Switch pulled out) power(voltage) is supplied by the alternator(G1) to the
tachometer/hourmeter. The tachometer converts this power signal to indicate engine rpm while the hourmeter converts
the power signal to indicate engine operating time in hours.
1.14.2.3.1.6. Cold Start System. The cold start system operates on electrical signal from the temperature switch
mounted on the side of the engine. When the temperature switch is closed(closed at 40 degrees F and below) and the
engine started, the solenoid valve opens and starting fluid from the can is injected into the intake manifold through the
tubing as long as the starter is energized.
Figure 1-5.1.
Cold Start System (Model 350 PAWN).
1-12.2
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