TM 5-3820-241-34
b. Disassembly.
(1) Disassemble the boom swing cylinder in
numerical sequence as illustrated in figure 3-8.
2
ME 3820-241-34/3-8
1 Piston rod assembly
2 Piston rod bushing
3 Piston rod spacer
4 Lock nut
5 Backing plate
6 O-ring
7 U-cup
8 Piston
9 U-cup
10 O-ring
11 Backing plate
12 Cylinder head
13 Spring
14 Male adapter
15 V-packing
16 O-ring
17 Back up ring
18 Gland nut
19 Wiper rod
20 Ring retainer
21 Pipe plug
22 Piston ring
23 Pilot check piston
24 Pipe plug
25 Spring
26 Poppet
27 Pipe plug
28 Spring
29 Poppet
30 Pipe plug
31 Piston ring
32 Pilot check piston
33 Barrel bushing
34 Barrel spacer
35 Barrel assembly
Figure 3-8. Boom swing cylinder, disassembly and reassembly.
(2) Use a
suitable drift and drive out
bushings (2) and (33) and spacers (3) and (34).
3-12. Boom Swing Cylinder Cleaning, Inspection
and Repair
Clean, inspect and repair the boom swing cylinder
in a similar manner as outlined in paragraph 3-3.
3-13. Boom Swing Cylinder, Reassembly and
Installation
a. Reassembly.
(1) Reassemble the boom swing cylinder in
the reverse of numerical sequence as illustrated in
figure 3-8.
(2) Align the holes in spacers (3) and (34)
with holes in piston rod (1) and barrel assembly
(35). Lubricate and press spacers (3) and (34) and
bushings (2) and (33) into position.
b. Installation.
(1) Install the boom swing cylinder in the
reverse of numerical sequence as illustrated in
figure 3-7.
3-13
