TM 55-4920-394-13&P
Table 2-1. Controls and Instruments
CONTROL OR INSTRUMENT
DESCRIPTION AND
FUNCTION OR
LOCATION
OPERATION
LOW PRESSURE TEST
Test connection on panel
External calibration
of low pressure gauge.
SYSTEM FILL valve
Valve on panel
Permits filling of
system from reser-
voir.
Panel Light
Three clear incandescent
Illuminate control
lamps across top of panel
panel.
High Pressure Filter
Red lamp on panel
Lights in event of
high differential
pressure across high
pressure filter.
FILL SYSTEM gauge
Duplex 0-200 psig on
Indicates pressure on
panel
both sides of fill
system filter simul-
taneously.
HOURMETER
On panel; rotating drum
Total test stand
type; 0-9.999 hours
operating hours.
FLUID LEVEL
Zero to full on right
Indicates level
side of panel
(amount) of fluid in
test stand reservoir;
electrically
actuated.
MOTOR RUNNING LIGHT
Amber light on panel
Indicates pump motor
is running.
LIGHTS ON
Toggle switch on panel
Turns panel illumin-
ating lights on and off.
FILL PUMP SWITCH
Toggle switch on panel
Starts fill pump
motor.
PUMP ON SWITCH
Black push button on
Starts pump motor.
panel
PUMP OFF SWITCH
Red push button on panel
Stops pump motor.
POWER ON SWITCH
Off-On toggle type on
Energizes supply
panel
power (thru power
cord) to control
panel on test stand.
EMERGENCY STOP
Red mushroom head push
Cuts all power to
button
stand.
2-3
