b. Grounding. Check that generator sets are grounded to GROUND TERMINAL stud on trailer body. Using
ground wire supplied, connect power plant to a suitable ground as described below. The following sources of a
good ground are listed in order of preference.
As a substitute for the supplied ground wire, any copper wire of a least No. 6 AWG may
(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 the 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
(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.
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
the generators 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.