TM 55-1930-209-14&P-16
Section III. Maintenance instructions
5-14 General
5-14.1 Maintenance concept
5-14.1.1 Unit level and IDS/IGS maintenance is performed onboard by crewmembers whenever possible
5-14.1.2 Any IDS/IGS maintenance beyond capability of crewmembers will be provided by a shore-based area support
maintenance unit. This unit also determines if depot support maintenance is required.
5-14.1.3 Intermediate support maintenance is accomplished by replacing components or major end items.
5-14.1.4 Unless other intermediate support maintenance procedures are directed, IDS/IGS maintenance normally is
provided by an Army Transportation Corps floating craft intermediate support maintenance unit serving terminal
operating area. Components to be disposed of are processed by this unit
5-14.2 Maintenance instructions are presented in the paragraphs that follow: Appendix C, Preventive maintenance
checks and services; paragraph 5-16, Troubleshooting, and paragraph 5-17, Maintenance procedures.
5-15 Preventive maintenance checks and services Refer to Appendix C.
5-16 Troubleshooting. Troubleshoot forced air heater in accordance with Table 5-1.
Table 5-1. Troubleshooting Procedures for Forced Air Space Heaters
Condition
Possible Cause
Suggested Action
1
Heater does not
a.
Breaker P19 on
a.
Close breaker
operate
main switch board
not dosed
b.
Individual breaker on
b.
Close breaker
power panel 4 not
dosed
c.
Manual reset switch
c.
Push reset switch
d.
Fuse blown In bottom
d.
Open entry panel
of heater
and replace fuse
2.
Fan operating noisily
a.
Fan back panel
a.
Readjust fan back
out of alignment
panel
b.
Fan blades bent or
b.
Realign or clean
dirty
blades
3.
Fan operating but
a.
Manual reset switch
a.
Push reset switch
not heating
open
b.
Fuse blown in bottom
b.
Open entry panel
of heater
and replace fuse
4
Unit heating but fan
a.
Fan motor bad
a.
Replace motor
not turning
b
Fuse blown in bottom
b.
Open entry panel
of heater
and replace fuse
c
Fan blades
c.
Readjust back panel or
out of alignment
blades
5-7
