TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 1355 of 1417
SECONDARY SWITCH INSTALLATION
NOTE
Male pipe threads must be wrapped with antiseize tape before installation.
1.
Install adapter fitting (Figure 4, Item 6) and secondary low air pressure switch (Figure 4, Item 7) on adapter
elbow (Figure 4, Item 2).
NOTE
Assistant will help with Step (2).
2.
Install two screws (Figure 4, Item 3) and nuts (Figure 4, Item 4) on secondary air reservoir (Figure 4, Item 5).
3.
Connect wire (Figure 4, Item 8) and ground wire (Figure 4, Item 1) to secondary low air pressure switch
(Figure
4,
Item
7).
TM 9-2320-272-23-2
0342
0342-8
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