TM
5-6115-376-13
2-5. Primary-Standby lnter-Unit
a. Generator Trailer (PU-407/M, PU-699/M).
Connections
(1) Remove a ground rod and sledge hammer
from their holders.
a . 45 KW Units. T h e P U - 4 0 7 / M a n d P U - 4 0 8 / M
( 2 ) Drive ground rod into ground near road-
u n i t s are arranged for joint operation as a control
side lunette end of trailer; leave approximately
power source as shown in figure 2-3, using the
s i x inches of ground rod above ground.
synchronizer assembly mounted on PU-407/M
(3) Remove a ground cable and clamp from
only.
the accessory box and fasten one end to the ground
b.
60
KW
Units. T h e
PU-699/M
and
PU-
terminal located on trailer chassis roadside side
700/M units are arranged for joint operation as
rail.
a
control
power
source.
With
the
switchbox
(4) Connect loose end of ground cable to
(mounted
on
PU-699/M)
unit
selection
as
pri-
g r o u n d rod using the ground cable clamp.
m a r y , standby or paralleling is automatically con-
t r o l l e d by built in switching circuits (fig. 2-4).
b. Cargo Truck Mounted Generator (PU-408/
M,
PU-700/M). The
cargo
truck
generator
Power Distribution
Connections
g r o u n d i n g procedures are similar to those for the
(45KW)
trailer mounted generator, except for location of
Distribution
of
single-phase
AC
power
is
con-
ground
terminal.
Connect
ground
cable
with
t r o l l e d by the distribution box control panel. The
ground clamp, from ground rod to ground termi-
distribution box distribution panel provides nine
nal at rear, curbside corner of skid platform.
receptacle-connectors for distribution of single
T h e ground rod should be close to the rear curb-
p h a s e A C p o w e r t o area-type communication
s i d e wheels of the truck.
