TM 10-4930-351-14
0003 00
PUMPING SUBSYSTEM
The pumping subsystem, figure 2, performs the functions associated with pumpage flow from the fuel drums to the fueling
points: suction, discharge, and recirculation. The primary component of the pumping subsystem is the fuel transfer pump.
The suction side of the pump is supplied by non-collapsible hoses connected in parallel to the outlet side of the fuel drums.
Pumpage from the discharge side of the pump moves through the liquid fuel filter-separator to the fueling points. Fueling is
accomplished at four fueling points, using any combination of D1, CCR or oil/fuel servicing nozzles. Fuel recirculation
occurs continually during system operation.
D1
D1
CCR
CCR-GFA
DISCHARGE
FILTRATION
MODULE
FUEL TRANSFER PUMP
RECIRC 1
RECIRC 2
SUCTION
FUEL
FUEL
FUEL
FUEL
DRUM
DRUM
DRUM
DRUM
RECIRCULATION
Figure 2. Pumping Subsystem
0003 00-2
