Install - TM-5-5420-279-230846

TM 5-5420-279-23

(8)

Remove the pulley pin (8).

(9)

Remove rope pulleys (20).

(10)

Separate the two rope pulleys (20) retaining the spacer (10) and sealing caps (9 and 13).

(11)

Remove the bearings (17) from the rope pulleys (20).

(12)

If required remove the screws (12 and 19) and rope guards (11 and 18).

(13)

Check the rope pulleys (20) for wear, cracks and damage.

(14)

Check the pulley pin (8) for wear and damage.

(15)

Check the rope guides (11 and 18) for wear and damage.

(16)

Check the bearings (17) for wear and damage.

(17)

Check all threaded components for wear and damage.

(18)

Replace components as necessary.

Install

(1)

Pack the bearings (17) with grease.

(2)

Fit the bearings (17) to the rope pulleys (20). Refer to general unit maintenance procedure

5-158 before assembling the rope pulley bearings.

(3)

Fit the spacer (10) between the inner faces of the rope pulleys (20).

(4)

Apply multi-gasket to the sealing caps (9 and 13).

(5)

Fit the sealing caps (9 and 13) to the outer faces of the rope pulleys (20).

(6)

Position the rope pulleys (20) in the lower pulley block (3).

(7)

Fit the pulley pin (8) through the lower pulley block (3) and the rope pulleys (20).

(8)

Apply thread-locking compound to the screws (16).

(9)

Secure the pulley pin (8) with the end cap (14), lock washers (15) and screws (16).

(10)

Grease the pulley pin (8) through the grease fitting (7).

(11)

If previously removed, apply thread-locking compound to the screws (12 and 19).

(12)

Fit the rope guards (11 and 18) and secure with screws (12 and 19).

(13)

Check that the rope pulleys (20) rotate freely.

Follow on tasks

(1)

Fit the lower winch rope in accordance with direct support maintenance procedure 6-015.

(2)

Fit the bridge slings.

(3)

Check the operation of the lower pulley block assembly.

6-102