TM-9-2320-272-23-4

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

TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5

SEPTEMBER 2012

TM-9-2320-272-23-4 - Page 1019 of 1393

INSTALLATION

CAUTION

Ensure no particles of plugging become trapped in crane hydraulic system during installation

of hoses or tubes. Failure to comply may result in damage to equipment.

NOTE

•

Do not twist hose or attempt to install hose with one wrench.

•

Hose fitting ends connected by a single hexagonal nut cannot be connected until the

hexagonal nut end is connected at the opposite end. The entire hose must be free to turn

whenever installing hose connected by a single hexagonal nut.

1.

Install hose (Figure 2, Item 7) and/or tube (Figure 2, Item 1) on wrecker body (Figure 2, Item 4) and bracket

(Figure 2, Item 3) with clamp (Figure 2, Item 2) and locknut (Figure 2, Item 8).

2.

Position wrenches on hexagonal fitting (Figure 2, Item 6) and flare nut (Figure 2, Item 5).

3.

Holding hexagonal fitting (Figure 2, Item 6) in place, tighten flare nut (Figure 2, Item 5).

4.

Repeat Steps (1) through (3) for remaining hoses (Figure 2, Item 7) and/or tubes (Figure 2, Item 1).

TM 9-2320-272-23-4

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