TM 5-5420-228-24
HEU HOSE ASSEMBLIES "AT", "AU", "AV", FITTINGS AND COUNTERBALANCE VALVE
"DC" REPLACEMENT (Sheet 1 of 4)
PROCEDURE INDEX
Procedures
Page
Removal
Installation
TOOLS:
12-in. Adjustable wrench
Ratchet with ½ in. drive
1 5/16-in. open end wrench
9/16-in. socket with ½ inch drive
SUPPLIES:
Drip pans (suitable containers)
Pencil (Item 22, Appendix D)
Preformed packing (5 required)
Protective caps and plugs (assorted sizes)
Rags (Item 12, Appendix D)
Masking tape (Item 18, Appendix D)
Pipe tape (Item 19, Appendix D)
REFERENCE: LO-12
PRELIMINARY PROCEDURES:
Zero hydraulic pressure (page 3-70.5)
Remove front hose armor (page 3-133)
Remove hose assemblies "CD" and "CE" (page 3-204.63)
Remove hose assemblies "AR" and "AS" (page 3-204.28)
REMOVAL:
NOTE
Use rags and drip pans to catch excess hydraulic fluid. Use masking tape to tag lines
for installation. Cap or plug all lines and fittings as they are disconnected.
1.
Hold elbow (A) with adjustable wrench and use wrench to disconnect hose assembly "AU" (B) from elbow (A).
2.
Use adjustable wrench to remove elbow (A) from port "CI" on front glacis. Remove preformed packing (C).
CD
Go on to Sheet 2
