TM 5-5420-228-24
HEU AND EARLY MODEL HOLD-DOWN CYLINDER REPAIR (Sheet 1 of 4)
PROCEDURE INDEX
Procedures
Page
Disassembly
Cleaning and Inspection
Assembly
TOOLS:
Seal pack installation tool (HEU Model)
Cross-tip screwdriver
Ratchet with 3/8 in. drive
Adapter 1/2-in. to 3/8-in. drive
5/16 in. socket head screw attachment w/ 3/8 in. drive
Torque wrench w/ 1/2-in. drive (175 lb-ft capacity) (0-237 Nm)
Spanner wrench (adjustable face type 2 in. capacity)
SUPPLIES:
Rags (Item 12, Appendix D)
Preformed packing (as required)
Masking tape (Item 18, Appendix D)
Gloves (Item 27, Appendix D)
Dry cleaning solvent (Item 15, Appendix D)
Seal pack assembly (HEU Model)
Packing assembly (Early Model)
Scraper (HEU Model)
Wiper ring (2 required)
Spacer ring (Early Model)
PRELIMINARY PROCEDURES: Remove hold-down cylinder (page 3-254)
DISASSEMBLY:
1.
Wrap threads of piston rod (A) with tape.
2.
Using cross-tip screwdriver, remove four screws (B).
Go on to Sheet 2
