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 1209 of 1469

REMOVAL

WARNING

Do not start engine when steering assist cylinder hoses are disconnected. Pressure may whip

hoses. Failure to comply may result in injury or death to personnel.

CAUTION

Cap or plug all openings immediately after disconnecting hydraulic lines and hoses to prevent

contamination. Failure to do so may result in steering system damage.

NOTE

•

Have container ready to catch hydraulic oil.

•

Tag all lines and hoses for installation.

1.

Disconnect return hoses (Figure 1, Items 4 and 5) from elbows (Figure 1, Item 6).

2.

Remove two grease fittings (Figure 1, Item 2) from steering assist cylinder (Figure 1, Item 11).

3.

Remove two cotter pins (Figure 1, Item 1) from steering assist cylinder (Figure 1, Item 11). Discard cotter pins.

4.

Loosen adjustable plugs (Figure 1, Items 10 and 3) as far as possible without removing, and loosen two dust

covers (Figure 1, Item 8).

5.

Tap on adjustable plugs (Figure 1, Items 10 and 3) to loosen steering assist cylinder (Figure 1, Item 11) from

spring shackle ball stud (Figure 1, Item 7) and steering knuckle ball stud (Figure 1, Item 12).

6.

Remove steering assist cylinder (Figure 1, Item 11) from ball studs (Figure 1, Items 7 and 12).

7.

Remove two dust covers (Figure 1, Item 8) and felt pads (Figure 1, Item 9) from ball studs

(Figure

1,

Items

7

and

12).

8.

Remove cotter pin (Figure 1, Item 13) and nut (Figure 1, Item 14) from steering knuckle ball stud

(Figure

1,

Item

12). Discard cotter pin.

TM 9-2320-272-23-3

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