TM 5-5420-228-24
HEU HOSE ASSEMBLIES "AC", "AD", AND OVERHEAD CYLINDER COUNTER
BALANCE VALVE "DA" REPLACEMENT (Sheet 1 of 3)
PROCEDURE INDEX
Procedures
Page
Removal
2-204.5
Installation
2-204.7
TOOLS: 12-in. Adjustable wrench
Ratchet with -in drive
1-5/16 in. open end wrench
9/16-in. socket w/ -in. drive
SUPPLIES:
Drip pans (suitable containers)
Pencil (Item 22, Appendix D)
Preformed packing (4 required)
Protective caps and plugs (assorted sizes)
Pipe tape (Item 19, Appendix D)
Masking Tape (Item 18, Appendix D)
Rags (Item 12, Appendix D)
REFERENCE: LO -12
PRELIMINARY PROCEDURES: Remove overhead cylinder armor (page 3-223)
Zero hydraulic pressure (page 3-70.5)
Remove front hose armor (page 3-133)
Remove hose assemblies AA and AB (page 3-204.2)
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 "AC" (B) from elbow (A).
2.
Use adjustable wrench to remove elbow (A) from cylinder "EA" (C) and remove preformed packing (D).
3.
Hold adapter (E) with adjustable wrench and use wrench to remove hose assembly "AC" (B) from adapter (E).
4.
Use adjustable wrench to remove adapter (E) from counter balance valve "DA" (F) and remove preformed
packing (D).
F
D
Go on to Sheet 2