TM 9-6115-658-13&P
2-3
Table 2-1. Description of Switch Box Controls and Indicators.
ITEM
NUMBER
DESCRIPTION
FUNCTION
1
2
3
4
5
6
7
8
SYNCHRONIZING LIGHT
ON light for GEN SET 1 (front generator
set)
ON LINE light for GEN SET 1
(front generator set)
ON/OFF switch for GEN SET 1
(front generator set)
TRANSFER SWITCH
ON/OFF switch for GEN SET 2
(rear generator set)
ON LINE light for GEN SET 2
(rear generator set)
ON light for GEN SET 2 (rear generator
set)
Used to synchronize generator sets for transferring load.
All three lights are dark when only one generator set is
operating. The lights simultaneously go from bright to
dark and back to bright in repeated cycles after
TRANSFER switch (5) is engaged while one generator
set is on line and the other is ready to go on line. All
three lights are again dark after load has been
transferred.
Lights when front generator set is supplying power to
switch box.
Lights when front generator set is supplying power to the
load.
Toggle switch, used to place front generator set on line
when generator set is ready or take it off line before
shutting it down.
Toggle switch, used to transfer load when one generator
set is on line and SYNCHRONIZING lights (1) indicate
that other generator set is ready to go on line.
Toggle switch, used to place rear generator set on line
when generator set is ready or take it off line before
shutting it down.
Lights when rear generator set is supplying power to the
load.
Lights when rear generator set is supplying power to
switch box.
