HEU OR EARLY MODEL LOCKING CYLINDER REPAIR (Sheet 1 of 4)
Cleaning and Inspection
9/16 in. socket with 1/2 in. drive
Seal pack installation tool (HEU Model)
Spanner wrench (adjustable face type 0-2 in. capacity)
Torque wrench with 1/2 in. drive (0-175 lb-ft capacity) (0-237 N·m)
Seal pack assembly (HEU Model)
Wiper ring (4 required) (Early Model)
Masking tape (HEU Model)
Preformed packing (2 required)
Scraper (HEU Model)
Spacer ring (2 required) (Early Model)
Preformed packing assembly (2 required) (Early Model)
Retainer (HEU Model)
Tape, insulation, electricians (Item 17, Appendix D)(Early Model)
Both ends of this cylinder are the same. Repair of only one end is shown in this task.
Repair of opposite end is the same.
Use masking tape, tape threads of piston rod (A).
Using cross-tip screwdriver, remove four screws (B).
Go on to Sheet 2