Remove - TM-5-5420-279-230903

TM 5-5420-279-23

Remove

(1)

De-pressurize hydraulic system. Refer

to unit maintenance procedure 5-118.

(2)

Remove the hydraulic pipes (4), (5)

and (6) connected to the jib cylinder

(3).

(3)

Remove the electrical harness (7)

connected to the jib cylinder.

(4)

Remove the upper cylinder pin snap

ring (not shown).

(5)

Remove the set screws (9).

(6)

Note the orientation of and remove the

stop mechanical (10).

(7)

Support the weight of the jib cylinder

(3) and remove the upper cylinder pin

(8). Note the position of and retain the

spacers that are fitted between the jib

cylinder (3) and the boom (1).

(8)

Remove the lower cylinder pin snap

ring (not shown).

(9)

Remove the set screws (11).

(10)

Note the orientation of the stop

mechanical (12) and remove.

(11)

Remove the lower cylinder pin (13).

Note the position of and retain the

spacers that are fitted between the jib

cylinder (3) and the linkage (14).

(12)

Remove the jib cylinder (3).

(13)

Check the set screws, stops

mechanical and spacers for damage

and wear.

(14)

Check hydraulic hoses for chaffing or

crush damage.

(15)

Replace components as necessary.

Install

(1)

Locate the Jib Cylinder (3) in the Crane Base (2).

(2)

Locate the Lower Pin Spacers in the positions noted during removal and insert the Lower

Cylinder Pin (13).

(3)

Align the slot in the lower cylinder pin (13).

(4)

Insert the stop mechanical (12) as noted during removal.

(5)

Secure the stop mechanical in place with the set screws (11).

6-159