TM 5-4320-302-14
Table 2-1. Operator's Controls and Indicators-Continued
Control or
Key
Indicator
Function
4
ENGINE PRIME
Push-pull cable. T-handle mechanically connected to fuel feed pump
T-handle
priming lever. Used to prime engine by forcing fuel from fuel tank
into fuel system.
5
PUSH TO START
Starts engine. Starter pushbutton when pushed allows electric current
pushbutton
to flow to the starting solenoid. The starting solenoid then allows
current to flow to the starter motor.
6
ON-ENGINE-OFF
Turns engine on and off. Energizes electrical system for engine
switch
operation.
7
Fault sensitive
Shuts down engine if any of the following occur: (1) Low oil
control
pressure-below 20 pounds per square inch (psi) (137.9 kilopascals
[kPa] ); (2) high engine cylinder head temperature; or (3) engine
overspeed-greater than 3050 rpm. Has red pushbutton reset that
also has to be pushed when starting engine.
8
Charging indicator
Charging indicator light comes on when ON-ENGINE-OFF switch
light
is ON before starting engine. Once engine is running, charging in-
dicator light will go out. Charging indicator light will come on again
if alternator is not charging the battery and when engine is shut
down. The charging indicator light will go out again a few seconds
after engine shutdown.
9
Ammeter
Indicates battery charge or discharge in amperes (A). Electrically
connected in series to battery circuit. Graduated in 5 A increments
from 0 to +60 A and 0 to -60 A.
10
Oil pressure gage
Switchgage indicates engine oil pressure in psi and kilopascals (kPa).
Mechanically connected by the oil pressure line hose assembly to
the engine oil lubrication system on the outlet side of the lube oil
pump. Graduated in 10 psi (68.9 kPa) increments from 0 to 100 psi
(0 to 689.5 kPa). Has mechanical lever to set low oil pressure
setpoint associated with the fault sensitive control to shut down
engine.
2-2
