Table 2-1. Street Side Operator's Controls and Indicators - continued

TM 5-4210-224-14&P

Table 2-1. Street Side Operator's Controls and Indicators

250 GPM Mini-Pumper Firefighting Truck (Continued)

(Refer to Figure 2-1)

Key

Control or Indicator

Function

Master Pressure Gauge.

The Master Pressure Gauge indicates the amount of pressure on the

discharge side of the pump. (0 to 600 PSI).

10.

Compound Pressure Gauge.

The Compound Pressure Gauge indicates the amount of suction on the

suction side of the pump (0 to 600 PSI).

11.

Relief Valve Control

The Relief Valve Control Flush

Flush Knob.

Knob is used to flush sediment from the relief valve.

Turn the knob left (counterclockwise) to flush. Turn the knob to the right

(clockwise) to close.

Change 1 2-5