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TM 9-2330-380-14&P
4-68. Lower Lock Assembly
This task covers:
a. Removal
b. Inspection and repair
c. Installation
Initial Setup:
Tools/Test Equipment:
General mechanic's tool kit (item 01, Appendix B)
Interior handle removed (para. 4-66).
Grease (item 5, Appendix E)
a. Removal
Remove four bolts (7), washers (6) and nuts (5) and lower lock
assembly (4).
b. Inspection and repair
1. Inspect parts for cracks, bends, excessive wear and
deterioration. Replace defective parts.
2. Straighten locking rods to assure proper alignment in upper and
lower bolt slide fasteners.
3. Straighten bends or dents in slide bolt assembly covers that may
cause binding.
4. Check lock for ease of operation. Using grease fitting on handle
lock assembly, lubricate in accordance with Appendix I,
Lubrication Instructions.
5. With door locked from outside, remove safety release pin (3).
Remove lock pin (2), turn handle (1) and note if door opens
6. Clean and paint if necessary.
7. Replace defective parts.
c. Installation
Position lower lock assembly (4). Secure with four bolts (7), washers (6) and nuts (5).
Follow-on maintenance:
Install interior handle (para. 4-66).


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