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 819 of 1469

INSTALLATION

NOTE

•

If new brake proportioning valve is being installed, use attaching parts and fittings from

old brake proportioning valve.

•

Fittings must be cleaned and inspected for cracks and stripped threads.

•

Apply adhesive sealant to all male pipe threads before installation.

1.

Install brake proportioning valve (Figure 2, Item 2) on bracket (Figure 2, Item 13) with two screws

(Figure

2,

Item

12) and locknuts (Figure

2,

Item

11).

2.

Install elbows (Figure 2, Items 5 and 10) and adapters (Figure 2, Items 4 and 6) on brake proportioning valve

(Figure 2, Item 2).

3.

Connect air lines (Figure 2, Items 1, 3, 7, and 9) to elbow (Figure 2, Item 10), adapter (Figure 2, Item 4), elbow

(Figure 2, Item 5), and adapter (Figure 2, Item 6).

4.

Install two tiedown straps (Figure 2, Item 8) on air lines (Figure 2, Items 1, 7, and 9).

TM 9-2320-272-23-3

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