ARMY TM 5-6115-633-14&P
(1) Underground water system. Ground power plant to one of the accessible pipes in an
underground water system. Make certain underground pipe is made of metal and there is
no insulation, such as a water meter, between ground wire and earth.
(2) Ground rod. Drive ground rod a minimum of eight feet into earth. A ground rod must have a
minimum diameter of 5/8-inch, if solid, or 3/4-inch if pipe.
It may be necessary to saturate the area around ground rod with water if soil
conditions are dry.
(3) Ground plate. Ground power plant to a metal plate buried four feet deep. Ground plate
should cover a minimum area of nine square feet.
c. External Fuel Line Connection. (See figure 4-3.) The power plant generator sets can be
fueled from an external source such as a five-gallon fuel can or 55 gallon drum. This eliminates the
need for frequent refilling of each generator's fuel tank during long intervals of operation.
Remove fuel can adapter and fuel pickup tube from storage locations on generator set and
assemble by threading pickup tube into adapter.
Thread one end of auxiliary fuel line onto fuel can adapter fitting and tighten.
Connect free end of auxiliary fuel line to AUXILIARY FUEL CONNECTION. This connection is
located immediately below control cubicle on right-hand side of generator set.
Insert fuel can adapter in external fuel source and secure by pressing down on lever.
Set MASTER SWITCH on control panel to PRIME AND RUN AUX FUEL position.
When generator set is run on auxiliary fuel, as described above, fuel is first
pumped into generator set fuel tank by auxiliary fuel pump. Fuel is then fed to
generator set engine from fuel tank.