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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
5.
#1 Preconnect Discharge
The #1 Preconnect Discharge Outlet
Outlet Pressure Gauge.
Pressure Gauge indicates water pressure (0 to 600 PSI) at the #1
preconnect outlet.
6.
Tachometer Calibration
The Tachometer Calibration Port
Port.
is used to test the accuracy of the engine tachometer.
7.
#2 Preconnect Discharge
The #2 Preconnect Discharge Out-
Outlet Pressure Gauge.
let Pressure Gauge indicates water pressure (0 to 600 PSI) at the #2
preconnect outlet.
8.
Tachometer/Hourmeter.
The Tachometer/Hourmeter is used to measure engine revolutions per
minute in hundredths (0 to 40 RPM). It also records actual operating
hours.
2-4
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