TM 9-3431-254-14&P
1 . Frequency Meter
12.
Start
2 . Hour Meter
Wire Feeder Receptacle
13.
3 . Oil Pressure Gauge
14.
Slave Receptacle
4 . Range Switch
Toggle Switch
15.
5 . Welding Voltmeter
Duplex Receptacle (115 V AC)
16.
6 . Welding Ammeter
Receptacle Cover
17.
7 . Fine Current Control
18.
Circuit Breaker (40 amperes)
8. Choke Control
19.
Circuit Breaker (15 amperes]
9 . Engine Throttle
20.
Circuit Breaker (20 amperes)
1 0 . Twist-Lock Receptacle ( 115 V AC)
21.
Battery Ammeter
1 1 . Receptacle Cover
Control Panel
CONTROLS, INSTRUMENTS AND OUTLETS
OIL PRESSURE GAUGE (3) - The gauge indicates
the oil pressure of the engine. The scale of the gauge is
FREQUENCY METER (1) - Registers the frequency
0 to 75 psi (0 to 517 kPa). At 1800 RPM, the oil pres-
of the voltage supplied to the receptacles (both the du-
sure should read 45 to 50 psi (310 to 345 kPa) when the
plex receptacle, and the twist-lock receptacle) on the
engine is at operating temperature:
front panel.
RANGE SWITCH (4) - This is the coarse current
HOUR METER (2) - Registers the operational time
control, with five detent positions and is used in the
of the unit. Records cumulative number of hours that
constant current mode only. Clockwise rotation in-
the engine has been in operation. Use the hour meter
creases current, counterclockwise rotation decreases
to schedule periodic maintenance and inspections.
current.
