TM-9-2320-272-23-3

TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 3 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-3 - Page 995 of 1469

INSTALLATION

NOTE

•

If new valve is being installed, use fittings from old valve.

•

Wrap all male pipe threads with antiseize tape before installation.

1.

Position double check valve No. 5 (Figure 2, Item 4) against frame rail (Figure 2, Item 2) and install with screw

(Figure 2, Item 1) and locknut (Figure 2, Item 3).

2.

Connect treadle valve control line (Figure 2, Item 7) to valve adapter tee (Figure 2, Item 8).

3.

Connect double check valve No. 2 control line (Figure 2, Item 6) to bushing (Figure 2, Item 5).

4.

Connect secondary relay valve control line (Figure 2, Item 10) to valve elbow (Figure 2, Item 9).

5.

Connect double check valve No. 1 output line (Figure 2, Item 11) to valve elbow (Figure 2, Item 12).

6.

Connect primary relay valve control line (Figure 2, Item 14) to valve adapter tee (Figure 2, Item 13).

TM 9-2320-272-23-3

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