Install - TM-5-5420-279-230778

TM 5-5420-279-23

(5)

Remove the LBD top cover (2). Refer to unit maintenance procedure 5-035.

(6)

Remove the socket head screws securing the rear guard (3) to the LBD.

(7)

Remove the rear guard (3).

(8)

Support the weight of the LBD (1) using a crane and lifting slings.

(9)

Note the position of the hydraulic hoses (4) attached to the LBD manifold assembly (5) and

disconnect them.

(10)

Disconnect the articulator cylinders (6) upper mounting from the LBD pivot shaft (7). Refer

to unit maintenance procedure 5-050.

(11)

Release the rear pinch roller by turning the rear pinch roller pressure release tap through

90 degrees.

(12)

Remove and retain the socket head screws (8) securing the LBD locking collars (9) to the

pivot shaft (7).

(13)

Remove the locking collars (9).

(14)

Remove the pivot shaft (7).

(15)

Remove the LBD and place on a suitable level working surface.

(16)

Examine all components for damage and wear.

(17)

Examine the LBD frame pivot shaft bearings (10) for damage and wear.

(18)

Replace damaged or worn components as required.

Install

(1)

Position the LBD assembly on the launch frame. Support the weight of the LBD using the

crane and lifting slings.

(2)

Fit suitable dunnage to keep the LBD level.

(3)

Fit the pivot shaft (7) through the launch frame and the LBD (1).

(4)

Fit the locking collars (9).

(5)

Apply thread-locking compound to the threads of the locking collar socket head screws (8).

(6)

Secure the locking collars (9) with the locking collar socket head screws (8).

(7)

Fit the articulator cylinders (6) as detailed in unit maintenance procedure 5-050.

(8)

Re-connect the hydraulic hoses (4) to the LBD manifold assembly (5) in the positions noted

during Remove.

(9)

Remove the lifting slings and crane.

(10)

Fit the rear guard (3) to the LBD (1).

(11)

Fit the LBD top cover (2). Refer to unit maintenance procedure 5-035.

(12)

Remove the dunnage.

(13)

Turn the rear pinch roller pressure release tap through 90 degrees.

Follow on task

(1)

Operate the LBD, check for correct operation and hydraulic oil leaks.

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