TM 9-2320-260-34-2
(M819)
16-38. CHECK VALVES REPLACEMENT
THIS TASK COVERS:
a. Elevating Cylinder Check Valve Removal
c. Elevating Cylinder Check Valve Installation
d. Hoist Winch Motor Check Valve Installation
b. Hoist Winch Motor Check Valve Removal
REFERENCES (TM)
APPLICABLE MODELS
LO 9-2320-260-12
M819
TM 9-2320-260-10
TOOLS
TM 9-2320-260-34P-2
General mechanic's tool kit
EQUIPMENT CONDMON
(Appendix B, Item 1)
q Parking brake set (TM 9-2320-260-10).
1-11/16-in. open-end wrench
Z Drain hydraulic oil reservoir (LO 9-2320-260-12).
MATERlALS/PARTS
Antiseize tape (Appendix C, Item 50)
Cap and plug set (Appendix C, Item 6)
CAUTION
Clean area around hoses and lines before removal to prevent
q
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 or plugs prior
to installation. Failure to do so may result in hydraulic system
damage.
a. Elevating Cylinder Check Valve Removal
NOTE
q Have drainage container ready to catch oil.
q Tag hoses and tubes for installation.
1. Holding nut (4) on hose (1), loosen nut (3) and disconnect hose (1) from tube (2).
2. Remove hose (1) from check valve (6).
3. Remove check valve (6) from elbow (5).
b. Hoist Winch Motor Check Valve Removal
NOTE
q Have drainage container ready to catch oil.
q Tag hoses and tubes for installation.
1. Holding nut (12) on hose (7), loosen nut (11) and disconnect hose (7) from tube (10).
2. Remove hose (7) from check valve (8).
3. Remove check valve (8) from elbow (9).
I
c. Elevating Cylinder Check Valve Installation
1. Wrap male threads on elbow (5) and hose (1) with antiseize tape.
2. Install check valve (6) on elbow (5).
3. Install hose (1) in check valve (6).
4. Connect hose (1) to tube (2) with swivel nut (3) and nut (4).
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