Remove - TM-5-5420-279-230887

TM 5-5420-279-23

Remove

(1)

De-pressurize the hydraulic system. See unit maintenance procedure 5-118.

(2)

Remove the lift cylinder. See direct support maintenance procedure 6-050.

(3)

Note the position of and remove all hydraulic hoses connected to the rotate coupling (1).

(4)

Remove the eight bolts (7) and washers (8) securing the plates (5 and 6) to the crane

Column (9).

(5)

Remove the four bolts (3) and washers (4) securing the plates (5 and 6) to the crane

Column (9).

(6)

Remove the four bolts (2) securing the rotate coupling (1) to the plates (5 and 6).

(7)

Note the position of and remove the rotate coupling (1).

(8)

Remove the plates (5 and 6).

(9)

Check all threaded components for wear and damage.

Install

(1)

Fit the plates (5 and 6) to the crane base (9).

(2)

Fit the rotate coupling (1) to the crane base (9) in the position noted during removal.

(3)

Secure the rotate coupling (1) to the plates (5 and 6) with the bolts (2).

(4)

Secure the plates (5 and 6) to the crane base (9) with four bolts (3) and washers (4).

(5)

Secure the plates (5 and 6) to the crane base (9) with eight bolts (7) and washers (8).

(6)

Fit all the hydraulic hoses to the positions noted during removal.

(7)

Fit the lift cylinder. See direct support maintenance procedure 6-050.

Follow on tasks

(1)

Operate the crane in accordance with the operator's manual TM 5-5420-279-10.

(2)

Check for hydraulic fluid leaks.

6-143