SECTION I. DESCRIPTION AND USE OF OPERATORS
CONTROLS AND INDICATORS
OPERATOR CONTROLS AND INDICATORS.
The control panel is located on the front of the 350 GPM Pumping Assembly.
It contains the operating controls and
indicators. The control panel is illustrated in Figure 2-1. Table 2-1 and paragraphs 2.1.1 through 2.1.12 are keyed to
Table 2-1. CONTROLS AND INDICATORS.
Description and Purpose
1 EMERGENCY STOP
2 PUSH TO START
3 PUSH FOR OIL PRESSURE
Pull-Push switch to control 12 V DC to start circuit,
Spring loaded switch to start engine.
Spring loaded switch to bypass oil pressure circuit,
4 OIL PRESSURE
Gauge to indicate oil pressure.
Gauge to indicate engine speed and engine operating hours.
Gauge to indicate ampere(battery charging or discharging)
Gauge to indicate input pressure.
Gauge to indicate output pressure.
Used for cold starts. (Not used Model 350 PAWN)
Control for engine speed.
Provides lighting for the control panel. Panel lights are mounted on
brackets. and equipped with aviators night vision hood. Model 350
PAWN has four panel lights while other models have one.
Controls illumination of the panel lights. On Model 350 a rheostat
controls illumination by turning the knob clockwise or counterclockwise.
Other models have a switch to turn the panel light off or on.
EMERGENCY STOP (1). This switch is a push-pull type switch and is marked EMERGENCY STOP. Switch
is pulled out during engine start cycle and remains pulled out while engine is operating. When an emergency occurs,
EMERGENCY STOP switch is pushed in immediately to shut down engine operation. When the 350 GPM Pumping
Assembly is to be shutdown, EMERGENCY STOP switch is used to stop engine.
PUSH TO START (2). This switch is a pushbutton type switch and is used to start engine. Switch is pushed in
and held during engine start to activate K3 start relay. Switch must be released upon ignition of engine.
OIL PRESSURE BYPASS (3). This switch is a pushbutton type switch and is used to bypass oil pressure sensing
circuits. Switch must be pushed in simultaneously with start switch during engine start. Oil pressure bypass switch must
be released after oil pressure buildup.
OIL PRESSURE (4). This gauge indicates engine oil pressure by pounds per square inch (PSI). Gauge is
graduated in 10 pound increments from 0 to 80 PSI.
2 - 2 C h a n g e2