TM 5-4320-306-10
Table 2-1. Operator's Controls and Indicators - Continued
Key
Control or Indicator
Function
14
Liquid level gage
Indicates fuel level in fuel tank. Mounted on the fuel tank
near the fill cap.
15
Restriction indicator
Indicates blockage of air filter. A red indication
appears in window to indicate the need for cleaning
or replacement. Indicator is connected to air inlet
housing by a flexible hose. It is actuated by high
negative pressure. Indicator can be reset.
16
Discharge check valve
6-inch check valve on discharge manifold. Opens auto-
matically when discharge pressure is reached. If liquid
being discharged backs up, the check valve closes to keep
liquid from backing up into the pump. Can be opened
manually for draining the pump. Can be closed manually
to hold liquid in the pump for priming.
2-4
