TM 9-2320-260-34-2
15-15. HOIST CYLINDER MAINTENANCE (Contd)
b. Disassembly
1. Remove lubrication fitting (5) from hinge pin (6).
2. Remove two screws (13) from cylinder base (7) and slide hinge pin (6) out of cylinder base (7).
3. Remove three screws (21) from retainer (20) and cylinder head (16).
4. Tap retainer (20) free of cylinder head (16) and slide off piston rod (22).
5. Remove ten screws ( 18) and Iockwashers (17) from cylinder head (16) and cylinder housing (4).
Discard Iockwashers (17).
6. Remove cylinder head ( 16) from cylinder housing (4).
7. Remove packing (19) and O-ring (15) from cylinder head (16). Discard packing (19) and O-ring (15).
NOTE
Care must be used when removing piston rod and piston to
prevent damage to cylinder base or piston.
8. Remove piston rod (22) and piston (24) from cylinder housing (4).
9. Remove cotter pin (14) and nut (25) from piston rod (22). Discard cotter pin (14).
10. Slide piston (24) off piston rod (22).
11. Remove three piston rings (23) from piston (24). Discard piston rings (23).
WARNING
Bypass plugs are under tension. Remove plugs slowly. Failure to
do so may result in injury to personnel.
NOTE
Tag plugs for installation.
12.
Remove three bypass plugs (3), springs (2), and check balls (1) from cylinder housing (4).
13.
Remove two adapters (9), two ring spacers (8), orifice plug cover (10), ring spacer (11), and orifice
plug (12) from cylinder base (7). Discard ring spacers (8) and (11).
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