Table 2-1. Description of Operator's Controls and Indicators - CONT

TM 55-1915-200-10

Table 2-1. Description of Operator's Controls and Indicators - CONT

Key

Control or Indicator

Function

Portable Fire Pump (FIGURE 2-47)

Pressure Gauge

Indicates pump pressure, or pump vacuum

when priming.

AMPERES Gauge

Indicates if alternator is charging or

OFF-START-RUN

Switch turns engine off in OFF, allows

engine to start in START, and allows

engine to run in RUN position and

prevents over speed of engine if prime

is lost.

PRIME

Pushbutton to put pump in priming mode.

START

Pushbutton to place engine in starting

mode with OFF-START-RUN switch in START

position.

CHOKE

Controls carburetor fuel/air mixture.

SPEED

Controls speed of engine.

Water Discharge Valve

In closed position and PRIME pushbutton

depressed, pump is in priming mode. In

open position, pump can discharge

water.

Pump Drain Valve

When open, drains water from pump.

Manual Priming Inlet Plug

To manually prime pump when lift is

greater than 20 feet.

Priming Pump Discharge Port

Discharges output of pump.

Manual Start Pull Cord

Provides emergency engine starting.

External Fuel Tank

Provides fuel for pump engine.

2-148