TM 5-3805-255-14
0123
DISASSEMBLY
000123
1. Remove six bolts (Figure 1, Item 22), lockwashers (Figure 1, Item 21), and cylinder end cover (Figure 1, Item
20) from cylinder (Figure 1, Item 1). Discard lockwashers.
2. Slide cylinder end cover (Figure 1, Item 20) down rod (Figure 1, Item 25).
3. Remove cord ring (Figure 1, Item 16) from cylinder (Figure 1, Item 1).
4. Push cap assembly (Figure 1, Item 15) in slightly and remove segmented lockring (Figure 1, Item 14).
5. Remove rod (Figure 1, Item 25) and piston halves (Figure 1, Items 3 and 11) from boom cylinder (Figure 1,
Item 1).
6. Remove eight bolts (Figure 1, Item 2) and separate piston halves (Figure 1, Items 3 and 11). Discard bolts.
NOTE
Early type piston and piston packing is NOT shown in Figure 1. When rebuilding an early
type piston, new piston halves must be ordered to accommodate new wear rings and seal
rings. Late type pistons have wear rings and two seal rings in place of packing.
7. Remove two wear rings (Figure 1, Items 5 and 9), seals (Figure 1, Items 6 and 8), first piston half (Figure 1,
Item 3), two lockring halves (Figure 1, Item 7), and second piston half (Figure 1, Item 11) from rod (Figure 1,
Item 25). Discard wear rings and seals. DO NOT discard lockrings.
8. Remove and discard O-ring (Figure 1, Item 10) from second piston half (Figure 1, Item 11).
9. Remove and discard two O-rings (Figure 1, Items 12 and 13) from cap (Figure 1, Item 15).
10. Remove and discard O-ring (Figure 1, Item 4) from first piston half (Figure 1, Item 3).
11. Remove and discard two O-rings (Figure 1, Item 24) and four backup rings (Figure 1, Item 23) from grooves in
piston end of rod (Figure 1, Item 25). Remove rod wiper (Figure 1, Item 18) from bore of cylinder end cover
(Figure 1, Item 15) and slide cap assembly from rod.
12. Remove O-ring (Figure 1, Item 19) and rod seal (Figure 1, Item 17). Discard O-ring and rod seal.
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