Hydraulic Extension Cylinder

3-76. Hydraulic Extension Cylinder

(1) Inspect the shell assembly for cracks or

damage.

a. General. The purpose of the extension cylinder

is to extend and retract the boom assembly. The

( 2 ) Inspect the rod and piston for nicks and

scratches.

e x t e n s i o n cylinder is attached to the innerslide at

t h e rod end of the cylinder and to the base end of

(3) Inspect end cap for damage.

the boom assembly at the base end of the cylinder.

(4) Remove scratches with crocus cloth.

b. Removal. Refer to figure 3-151 and remove

(5) Replace a defective part.

the extension cylinder.

f. Reassembly. Refer to figure 3-152 and

reassemble extension cylinder.

c. Disassembly. Refer to figure 3-152 and

g . Test. R e f e r t o p a r a g r a p h 3 - 6 4 g a n d t e s t e x -

disassemble extension cylinder.

tension cylinder.

d . Repacking Cylinder. Refer to paragraph 3 - 6 4 c

h . Installation. Refer to figure 3-151 and install

for repacking procedures.

e x t e n s i o n cylinder.

e. Inspection.

cylinder, removal and installation.

Hydraulic

extension