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TM 10-4320-307-10
Table 2-1. Operator's Controls and Indicators (Cont)
Key
Control or Indicator
Function
5
SUCTION PRESSURE gauge
Displays pump suction pressure from 0 to 400 psig.
6
DISCHARGE PRESSURE gauge
Displays pump discharge pressure from 0 to 1500 psig
7
Cold Weather Starting Aid
Pulling handle out will inject ether through an atomizer directly
into the engine intake manifold.
8
OIL PRESSURE gauge
Displays lube oil pressure from 0 to 120 psig.
9
BATTERY-CHARGE voltmeter
Indicates state of battery charge.
10
ENGINE START switch
When pressed, activates engine starter motor and opens fuel
system solenoid valve.
11
ENGINE STOP switch
When pulled, closes fuel system solenoid valve.
12
LIGHT DIMMER
When PANEL LIGHT ON/OFF switch is in ON position, ad-
justs brightness of worklight with a potentiometer.
13
Clutch lever
When engaged, the speed increasing gear transmits power
from the engine flywheel to the pump shaft, matching opti-
mum engine speed to optimum pump speed.
14
PANEL LIGHT ON/OFF switch
When in ON position, control panel lights come on. When in
OFF position, control panel lights turn off.
15
POWER ON/OFF switch
When in ON position, power is applied to control panel. When
in OFF position, power is disconnected from control panel.
16
PRESS TO TEST LAMPS switch
When pressed, tests all four malfunction lamps on control
panel.
17
ENGINE OVERSPEED lamp
Lights when control system overspeed switch measures ex-
cessive engine rpm and causes engine shutdown.
18
LOW OIL PRESSURE lamp
Lights when low engine oil pressure is measured by oil pres-
sure switch and causes engine shutdown except during start-
up.
19
HIGH ENGINE TEMPERATURE
Lights when high coolant water temperature is measured by
lamp
coolant temperature switch and causes engine shutdown.
20
LOW SUCTION PRESSURE lamp
Lights when low pump suction pressure is measured on suc-
tion pressure transducer and causes engine shutdown.
21
ALARM RESET switch
Allows operator to reset control panel after automatic shut-
down caused by engine overspeed and low suction pressure.
2-2
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