TM 9-2320-260-34-2
15-15. HOIST CYLINDER MAINTENANCE (Contd)
d. Assembly
NOTE
Coat all internal parts and seals with GAA grease for assembly.
1.
Install three new piston rings (23) on grooves of piston (24). Ensure gaps in piston rings (23) are
staggered around piston (24).
2.
Slide piston (24) on piston rod (22) and install with nut (25) and new cotter pin (14).
CAUTION
Care must be used when installing piston rod and piston to
prevent damage to cylinder bore or piston.
Install piston (24) and piston rod (22) in cylinder housing (4) with ring compressor.
3.
Install new O-ring (15) on cylinder head (16).
4.
5.
Slide cylinder head (16) over piston rod (22) and position on cylinder housing (4).
Install cylinder head (16) on cylinder housing (4) with ten new lockwashers (17) and screws (18).
6.
Tighten screws (18) 8-10 Ib-ft (11-14 N.m).
Position new packing (19) in cylinder head (16).
7.
Position retainer (20) on piston rod (22) against packing (19) and install on cylinder head (16) with
8.
three screws (21).
Install orifice plug (12), new ring spacer (11), orifice plug cover (10), two ring spacers (8), and two
9.
adapters (9) in cylinder base (7).
Install three bypass check balls (1), springs (2), and plugs (3) in cylinder housing (4).
10.
11.
Install hinge pin (6) in cylinder base (7) with two screws (13).
Install lubrication fitting (5) on hinge pin (6).
12.
15-44
