TM-9-2350-277-20-4 Unit Maintenance Manual Volume 4 M113A3 M577A3 M1064A3 M1068A3 M58 Download
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TM 9-2350-277-20-4 ADJUST RAMP LOCK (M577A3 AND M1068A3 ONLY) — Continued 0522 00 12. With ramp lock lever (1) remaining in locked position, adjust clevis (2) 3/16 inch (5 mm) short of pin (4) fitting freely with arm (3). 13. Release lever (1) and align clevis (2) with arm (3). Secure with headed pin (4) and new cotter pin (5). Tighten locknut (6). 14. Loosen two nuts (7) on lever (1) and move arm (3) to obtain 3/8 inch (10 mm) clearance between end of clevis (2) and bulkhead. Tighten nuts (7). 15. Raise and lock ramp (see your -10). NOTE Ramp seal should be compressed enough to prevent water leakage, yet without metal-to-metal contact between ramp and hull. Make linkage shorter to compress seal more. Make linkage longer to compress seal less. 16. Check ramp for proper seal. Stand inside the vehicle with ramp up. Insert a thick piece of paper or inspection tag between ramp (8) and hull (9). The paper should slide freely around edge with no metal to metal contact. If ramp is too tight or too loose, repeat Steps 1 - 16. 0522 00-5