Install - TM-5-5420-279-230825

TM 5-5420-279-23

NOTE

The top half of the A-Frame Center Beam Bearing is a loose fit in the Center Beam.

(3)

Retain the top half of the A-Frame center beam bearing.

(4)

Support the weight of the forward roller assembly.

(5)

Remove the bolts (4) and washers (5) securing the pivot locking plate (6) to the launch

frame.

(6)

Remove the pivot pin (7).

(7)

Remove the forward roller assembly (4 through 11).

(8)

Remove the screws (8) securing the roller blocks (9) to the forward roller brackets (10).

(9)

Remove the rollers (11).

(10)

Check all screws and bolts and washers for damage.

(11)

Check the pivot pin (7) and pivot locking plates (6) for damage and corrosion.

(12)

Check the brackets (10) for damage.

(13)

Check the rollers (11) for damage and corrosion.

(14)

Replace components as necessary.

Install

(1)

Fit the rollers (11) to the brackets (10).

(2)

Apply thread-locking compound to the screws (8) and secure the rollers (11) with the roller

retaining blocks (9) and screws (8).

(3)

Grease the rollers.

(4)

Position the forward roller assembly in the launch frame.

(5)

Fit the pivot pin (7) through the launch frame and the forward roller assembly.

(6)

Apply thread-locking compound to the bolts (4) and secure the pivot pin (7) with the locking

plates (6), washers (5) and bolts (4).

(7)

Grease the pivot.

(8)

Replace the top A-Frame center beam bearing.

(9)

Fit the bottom left hand A-Frame center beam bearing (2) and secure with eight nuts and

bolts (1).

(10)

Fit the bottom right hand A-Frame center beam bearing (3) and secure with eight nuts and

bolts.

Follow on tasks

(1)

Fit the forward launch beam, see direct support maintenance procedure 6-026.

(2)

Check the operation of the forward launch beam and the forward rollers.

6-81