TM 9-2320-260-20
THIS TASK COVERS:
a. Removal
b. Installation
lNITIAL SETUP
EQUIPMENT CONDITION
APPLICABLE MODELS
Parking brake set (TM 9-2320-260-10).
M820A2
q
Liftgate lowered to ground level
MATERIALS/PARTS
(TM 9-2320-260-10).
Three lockwashers
q Control linkage removed from control valve
Cap and plug set (Appendix C, Item 9)
q Drain hydraulic system (LO 9-2320-260-12).
Antiseize tape (Appendix C, Item 30)
REFERENCES (TM)
LO 9-2320-260-12
TM 9-2320-260-10
TM 9-2320-260-20P
CAUTION
Clean area around hoses and lines before removal to prevent entry
of dirt. Damage will occur if dirt or dust enters system.
q Cap or plug all openings immediately after disconnecting lines and
hoses to prevent contamination. Remove caps and plugs prior to
installation. Failure to do so may result in damage to equipment.
NOTE
Tag all hydraulic lines for installation.
Have drainage container ready to catch hydraulic oil.
1. Disconnect hydraulic hoses (13) and (17) from control valve (3).
2. Disconnect hydraulic hoses (15) and (16) from two connectors (14).
3. Disconnect hydraulic hoses (11) and (12) from two tees (10).
4. Remove three nuts (9), screws (1), lockwashers (2), and control valve (3) from main frame mount (4).
Discard lockwashers (2).
5. Disconnect hydraulic hoses (5) and (7) from adapter (6) and tee (8).
NOTE
Perform steps 6 through 8 if replacing control valve.
6. Remove two connectors (14), flow control valve (23), and nipple (22) from two tees (10).
7. Remove two tees (10) and nipples (21) from control valve (3).
8. Remove adapter (6), tee (8), nipple (20), and elbows (18) and (19) from control valve (3).
NOTE
Perform steps 1 through 4 if installing new control valve.
1. Wrap male threads on hydraulic hoses (5), (7), (11), (12), (13), and (17), two connectors (14),
nipples (20), (21), and (22), adapter (6), and elbows (18) and (19) with antiseize tape.
2. Install elbows (18) and (19), nipple (20), tee (8), and adapter (6) on control valve (3).
3. Install two nipples (21) and tees (10) on control valve (3).
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