TM-9-2320-272-23-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 1 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-1 - Page 46 of 1313
TABLE OF CONTENTS - Continued
Page No.
WP Sequence No.
Figure 2.
Pressure Switch.
..................................................................................................................
0111-3
SPRING BRAKE WARNING LIGHT INOPERATIVE WITH SPRING BRAKE OVERRIDE
ENGAGED.
..................................................................................................................................................
WP 0112
Figure 1.
Spring Brake Override Light.
................................................................................................
0112-2
Figure 2.
Spring Brake Pressure Switch Wire 37.
...............................................................................
0112-3
Figure 3.
Spring Brake Override Warning Circuit Breaker Wire 10.
....................................................
0112-4
Figure 4.
Spring Brake Override Warning Circuit Breaker Wire 37.
....................................................
0112-5
ONE OR MORE TRAILER LIGHTS INOPERATIVE.
...................................................................................
WP 0113
Figure 1.
Lighting System.
...................................................................................................................
0113-2
Figure 2.
Trailer Receptacle.
...............................................................................................................
0113-3
Figure 3.
Trailer Receptacle.
...............................................................................................................
0113-4
Figure 4.
Trailer Receptacle.
...............................................................................................................
0113-5
Figure 5.
Trailer Lighting System Cable.
.............................................................................................
0113-6
Figure 6.
Trailer.
..................................................................................................................................
0113-7
HEATER WILL NOT OPERATE WITH SWITCH IN LOW POSITION (HIGH POSITION
OPERATION NORMAL).
.............................................................................................................................
WP 0114
Figure 1.
Heater Switch Wiring.
...........................................................................................................
0114-2
Figure 2.
Circuit Breaker Wire 569A.
...................................................................................................
0114-3
Figure 3.
Circuit Breaker Wire 569A.
...................................................................................................
0114-4
Figure 4.
Battery Switch Wire 569A.
....................................................................................................
0114-5
HEATER WILL NOT OPERATE WITH SWITCH IN HIGH POSITION (LOW POSITION
OPERATION NORMAL).
.............................................................................................................................
WP 0115
Figure 1.
Heater Switch Wiring.
...........................................................................................................
0115-2
Figure 2.
Circuit Breaker Wire 27.
.......................................................................................................
0115-3
Figure 3.
Circuit Breaker Wire 5A.
.......................................................................................................
0115-4
HEATER WILL NOT OPERATE IN LOW OR HIGH POSITION.
.................................................................
WP 0116
Figure 1.
Heater Blower Motor Wiring.
................................................................................................
0116-2
Figure 2.
Heater Switch Wiring.
...........................................................................................................
0116-4
TM 9-2320-272-23-1
xxv
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