Figure 3-145. Hydraulic lift cylinder, removal and installation.

3-73. Hydraulic Lift Cylinder

a . General. The purpose of the lift cylinder is to

e i t h e r raise or lower the lift mechanism. The lift

cylinders are attached to the boom assembly by

b r a c k e t s ; on each side of the boom, at the end of

the cylinder piston rod, and to the frame at the base

of the cylinder.

b. Removal. Refer to figure 3-145 and remove

h y d r a u l i c lift cylinder.

c. Disassembly. Refer to figure 3-146 and

disassemble hydraulic lift cylinder.

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

for repacking procedures.

e. Inspection.

(1) Inspect shell assembly for cracks or

damage.

(2) Inspect piston for nicks and scratches.

(3) Inspect end nut for cracks or damage.

(4) Inspect rod assembly for nicks and

scratches.

(5) Remove burrs and scratches with crocus

cloth.

(6) Replace a defective part.

f. Reassembly. Refer to figure 3-146 and

r e a s s e m b l e hydraulic lift cylinder.

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 t h e

Figure 3-145. Hydraulic lift cylinder, removal and installation.

hydraulic cylinder.

h . Installation. Refer to figure 3-145 and install

t h e hydraulic lift cylinder.