TM 9-2320-361-20 7-18. REAR SPRING MAINTENANCE This task covers: a. Disassembly c. Assembly b. Cleaning and Inspection INITIAL SETUP: APPLICABLE MODELS REFERENCES (TM) All TM 9-2320-361-20P MATERIALS/PARTS EQUIPMENT CONDITION Center bolt Rear spring removed (para. 7-17). Nut Four leaf clip screws GENERAL SAFETY INSTRUCTIONS Four leaf clip nuts Spring leaves and plates are under tension, Four leaf clip rivets release tension slowly. Graphite grease (Appendix C, Item 15) Keep fire extinguisher nearby when using Rags (Appendix C, Item 21) drycleaning solvent. Drycleaning solvent (Appendix C, Item 26) NOTE Some springs have two leaves and eight plates, and others have two leaves and ten plates. Both types are maintained the same. This procedure covers the spring with eight plates. Only the two leaves of the spring can be replaced. Damaged plates require replacement of whole spring. 1. Position C-clamp (4) on spring (2) near center bolt (7). Ensure C-clamp (4) is vertically centered and square across spring (2). 2. Remove four nuts (1), screws (9), and spacers (8) from two long leaf clips (6) and short leaf clips (5). Discard nuts (1) and screws (9). WARNING Spring leaves are under tension. Restrain all leaves and plates while removing center bolt. Release tension slowly. Failure to do so may result in injury to personnel. 3. Remove nut (3) and center bolt (7) from spring (2). Discard center bolt (7) and nut (3). 4. Slowly loosen C-clamp (4) until tension on plates (10) and (11), and leaves (12) through (19) is released. Remove C-clamp (4) from spring (2). 5. Center punch and drill out rivets (20) from two long leaf clips (6) and short leaf clips (5). Discard rivets (20). b. Cleaning and Inspection WARNING Drycleaning solvent is flammable and will not be used near open flame. Use only in well-ventilated places. Failure to do so may result in injury to personnel. 1. Clean all parts with drycleaning solvent. Use wire brush to remove rust and corrosion. Dry with clean rag. 2. Inspect plates (12) through (19) and leaves (10) and (11) for breaks and cracks. Replace leaves (10) and (11) if broken or cracked. Broken or cracked plates require replacement of entire spring. 3. Inspect long leaf clips (6), short leaf clips (5), and spacers (8) for cracks or breaks. Replace clips (6) and (5), and spacers (8) if cracked or broken. 7-42