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TM 10-4320-343-14
SECTION I. DESCRIPTION AND USE OF OPERATOR'S
CONTROLS AND INDICATORS
2.1
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 2.1.13 are keyed to
figure 2-1.
Table 2-1. Controls and Indicators.
Item
No.
Item Name
Description and Purpose
1
EMERGENCY STOP
Pull-Push switch used to control 12 V DC to start circuit.
2
PUSH TO START
Spring loaded switch used to start engine.
3
PUSH
FOR
OIL
PRESSURE
BYPASS
Spring loaded switch used to bypass oil pressure circuit.
4
OIL PRESSURE
Gauge to indicate engine oil pressure.
5
TACHOMETER/HOURMETER
Gauge to indicate engine speed and number of operating hours.
6
AMMETER
Gauge to indicate ampere.
7
SUCTION
Gauge to indicate input pressure.
8
DISCHARGE
Gauge to indicate output pressure
9
Handpump
Used for cold starts. Not used on Model 350 PAFN.
NOTE
Engine throttle is used on the unregulated models only. Manual
speed control and Mode selector are only used on the
unregulated models.
10
Engine Throttle
Control for engine speed. (Not used on regulated models.)
11
Manual Speed Control (Regulated
Provides for manual adjustment of engine speed on regulated
models. Models)
12
Mode selector (Regulated Models)
Used to select modes of operation(Start, Manual and Auto) on
regulated models.
13
RHEOSTAT/KNOB
Controls illumination of the panel lights by turning the knob
clockwise or counterclockwise. (Not used on all models).
14
PANEL LIGHTS
vision. Model 350 PAFN has four panel lights. (Panel lights are
not used on all models).
2.1.1 Emergency Stop. This switch is a push-pulltype 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.
2.1.2 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. The switch must be released upon ignition of engine.
2-2 Change 1
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