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 TM 5-1940-277-10
TM 1940-10/1
2-5.1 THE ENGINE INSTRUMENT PANEL (MK2 W/ CUMMINS 6BT 5.9 LITER) is located directly in front of
the steering wheel and contains the following switches, gauges, and lights necessary to start and monitor the
engines:
a.
Engine Coolant Warning Lights (3 and 12) Glow orange when the temperature of engine cooling system
rises to an unacceptable level. Number 3 is connected to the port engine and number 12 is connected to
the starboard engine.
b.
Coolant Temperature Gage (4 and 11) Indicates the temperature in degrees Fahrenheit of the engine
cooling system. Number 4 is connected to the port engine and number 11 to the starboard engine.
c.
Instrument Panel Light Switch (20) A switch which controls the gauge lights. Center position turns gauge
lights off. Down position turns gage lights on bright. Up position turns gauge lights on dim.
d.
Bilge Water Warning Lights (6 and 9) Located above the instrument light switch. These lights glow green
when accumulated water in the bilge reaches a level that requires pumping out. Number 6 indicates water
level in the hydrojet compartment and number 9 indicates water level in the engine compartment.
e.
Low Fuel Warning Light (8) Glows red when there is 12 gallons (45 liters) or less fuel remaining in the fuel
tank.
f.
Engine Low Oil Pressure Warning Light (2 and 13) Glows amber when the oil pressure in the engine is
unacceptably low. Number 2 is connected to the port engine and number 13 is connected to the starboard
engine.
g.
Engine Oil Pressure Gauge (1 and 14) Indicates the oil pressure of the engine in pounds force per square
inch (Ibf/in2). Number 1 is connected to the port engine and number 14 is connected to the starboard
engine.
h.
Battery Parallel (7) Glows red when the alternator on the engine is not working.
i.
Volt Meter (15 and 25) Indicates the state of charge in volts of the batteries. Number 15 is connected to
the two batteries on the starboard side and number 25 is connected to the two batteries on the port side.
j.
Engine Circuit Switch (17 and 23) Turns on the engine circuits. Up position is ON, down position is OFF.
Number 23 is for the port engine and number 17 is for the starboard engine.
k.
Starter Switch (16 and 24) When engaged the switch activates the starting motor to start the engine.
Switch functions as long as it is engaged. Number 24 is for the port engine and number 16 is for the
starboard engine.
l.
Tachometer (19 and 20) indicates the speed of the engine crankshaft in rpm. Actual speed is scale reading
times 100. On the MK2 W/ Cummins 6BT 5.9 Liter, the tachometer also includes the hour meter. Number
19 is for the starboard engine and number 20 is for the port engine.
m.
Gear Oil Pressure. Indicates the oil pressure of the transmission in pounds force per square inch (Ibf/in2).
Number 5 is connected to the port transmission and number 10 is connected to the starboard
transmission.
n.
Alarm reset (18 and 22) will deactivate audible alarm for 90 seconds when pressed. Number 18 is for the
starboard engine and number 22 is for the port engine.
Change 3
2-6.1/(2-6.2 blank)
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