BOOM EXTEND CYLINDER REPLACEMENT/REPAIR - continued

TM 10-3930-673-34

f. Installation.

NOTE

Remove caps and plugs as hoses are

installed. Wipe all sealing surfaces on

valve and hoses clean and dry. Apply film

of clean hydraulic oil to all seals as they

are installed.

(1)

Install boom extend cylinder (2) parts (9

through 22).

WARNING

TR01766

Use care when installing snap and

retaining rings. Snap and retaining rings

are under spring tension and can act as

projectiles when released and could cause

severe eye injury.

(a)

Apply anti-seize compound to shaft (16). Install shaft, two snap rings (15), and extend cylinder anchor (14)

on boom extend cylinder (2).

(a.1) Install sealing compound on threads of two screws (21).

(b)

Install wear pad (17) and two screws (21) on buckling brace (22). Tighten screws to 10 lb-ft (14 Nm).

(c)

Install buckling braces (20 and 22), two screws (19), and two nuts (18) on boom extend cylinder (2).

(d)

Use a sling and hoist to install boom

extend cylinder (2) at back of boom.

(e)

Have an assistant guide boom extend

cylinder (2) and slide it into boom.

WARNING

Use care when installing snap and

retaining rings. Snap and retaining rings

are under spring tension and can act as

TR01764

projectiles when released and could cause

severe eye injury.

(f)

Apply anti-seize compound to shaft (10). Install shaft and snap ring (9) in inner boom (11).

(g)

Place wood blocks underneath boom extend cylinder (2) and inner boom (11).

(h)

Remove hoist and sling from back of boom extend cylinder (2).