TM 55-1930-209-14&P-9-1
2-18.3
Electrical power emergency shutdown procedures
a.
If abnormal condition threatens injury to people or damage to equipment, push the nearest emergency
shutdown button to stop appropriate system or all systems onboard.
NOTE
When one of the six total shutdown buttons Is pushed, solenoids shut down all
generators and all electrically powered equipment except that powered by the emergency
electrical system.
Loss of power to Inverter will activate the emergency power system which operates with
power from the battery bank.
b.
Set generator ENGINE CONTROL SWITCH (Figure 2-11) to OFF
c.
When emergency situation has been corrected, reset emergency button by turning collar behind button one-
quarter turn clockwise. Button will pop out and again be in the ready position.
d.
Start normal power system by following procedures in paragraphs 2-11 and 2-13.
2-19.
Operation under extreme conditions
2-19.1
General. Information pertaining to generator set operation under extreme conditions of temperature and humidity
are provided in paragraph 4-15 for SSG’s and 5-15 for SAG. Information pertaining to switchboard and distribution panels
are discussed below.
2-19.2
Extreme humidity. Switchboard and distribution panels are not affected by temperature extremes but are
susceptible to excess humidity. Primary problems are corrosion on electrical contacts and condensation in gauges.
a.
Corrosion is controlled by decreasing intervals between scheduled maintenance cleaning.
b.
Condensation in gauges may be eliminated by applying low level heat for several hours to the gauge. To avoid
any moisture damage, this should be done as soon as any condensation becomes noticeable.
SECTION IV. Maintenance Instructions
2-20.
General
2-20.1
Maintenance concept
2-20.1.1
Unit level and Intermediate Direct Support and Intermediate General Support (IDS/IGS) maintenance on the
normal electrical system is performed onboard by barge crew members whenever possible.
2-20.1.2
Any IDS/IGS maintenance beyond capability of crew members is provided by a shore-based area support
maintenance unit. This unit also determines if depot support maintenance is required.
2-20.1.3
Intermediate support maintenance is accomplished by replacement of components or major end items.
2-20.1.4
Unless other intermediate support maintenance procedures are directed, IDS/IGS maintenance is normally
provided by an Army Transportation Corps floating craft intermediate support maintenance unit serving the terminal
operating area. Components to be disposed of are processed by this unit.
2-20.1.5
Maintenance Allocation Chart (MAC) is in TM 55-193G-209-14 & P-18. For maintenance on other equipment
onboard, consult appropriate manual.
2-20.2
Maintenance procedures- Maintenance instructions are contained in the following paragraphs: paragraph 2-21,
Preventive maintenance checks and services; paragraph 2-22, Troubleshooting; and paragraph 2-23, Maintenance
procedures.
2-30
