TM 9-2320-260-34-2
15-60. LIFTGATE CLOSING CYLINDERS MAINTENANCE (M820A2)
THIS TASK COVERS:
d. Assembly
a. Removal
e. Installation
b. Disassembly
c. Cleaning and Inspection
lNITIALSETUP
MATERIALS/PARTS (Contd)
APPLICABLE MODELS
Lubricating oil (Appendix C, Item 21)
M820A2
Cap and plug set (Appendix C, Item 6)
TOOLS
Antiseize tape (Appendix C, Item 50)
General mechanic's tool kit
REFERENCES (TM)
(Appendix B, Item 1)
LO 9-2320-260-12
Vise (Appendix B, Item 38)
TM 9-2320-260-10
MATERlALS/PARTS
TM 9-2320-260-34P-2
Lockwasher (Appendix D, Item 240)
EQUIPMENT CONDITION
O-ring (Appendix D, Item 267)
Parking brake set (TM 9-2320-260-10).
O-ring (Appendix D, Item 287)
Lock liftgate in raised and closed position
O-ring (Appendix D, Item 289)
O-ring (Appendix D, Item 291)
(TM 9-2320-260-10).
Drain hydraulic system (LO 9-2320-260-12).
Seal (Appendix D, Item 419)
No seals (Appendix D, Item 421)
SPECIAL ENVIRONMENTAL CONDITIONS
Four cotter pins (Appendix D, Item 33)
Perform this task in clean dust-free area.
a. Removal
CAUTION
Clean area around hoses and lines before removal to prevent
entry of dirt. Damage will occur if dirt or dust enters system.
Cap or plug all openings immediately after disconnecting lines
and hoses to prevent contamination. Remove caps or plugs prior
to installation. Failure to do so may result in injury to personnel.
NOTE
Tag all hydraulic hoses for installation.
q
q Have drainage container ready to catch hydraulic fluid.
1. Disconnect hydraulic hoses (11) and (12) from two elbows (7) and (8).
2. Disconnect hydraulic hoses (15) and (18) from elbows (16) and (17).
3. Remove two screws (1), Iockwashers (2), washers (3), two cotter pins (13), cotter pins (9), pivot
pins (10), and closing cylinders (4) and (6) from main frame (5) and two clutches (14). Discard
Iockwashers (2) and cotter pins (13) and (9).
b. Disassembly
Perform this task in a clean, dust-flee area. Failure to do so may
result in damage to equipment.
1. Remove elbows (16) and (17) from closing cylinder (4).
2. Remove elbows (7) and (8) from tee, (21) and check valve (22).
3. Remove tubes (20) and (24) frorn two connectors (19), tee (21), and connector (23).
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