TM 9-2350-277-20-4
ADJUST RAMP LOCK (M577A3 AND M1068A3 ONLY) — Continued
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18. Remove cotter pin (1), headed pin (2), and clevis (3) from lever (4) for one side of vehicle only. Discard cotter pin.
19. Adjust clevis (3) to lengthen or shorten linkage and obtain a water tight seal between ramp (5) and hull (6). Latches (7)
must pull tight on catches (8).
20. Align clevis (3) with lever (4). Secure with headed pin (2).
21. Latch ramp lock lever (9).
22. Check for adequate tension on ramp latch (7) and catch (8). There should be no free play in latches (7) when ramp lock
lever (9) is latched.
23. Repeat Steps 17 - 22 until latch (7) is under proper tension. Install new cotter pin (1) in headed pin (2).
24. Repeat Steps 17 - 23 for latch (7) on opposite side of vehicle.
25. With ramp up and locked, loosen locknuts (10) on setscrew (11). Adjust setscrews (11) to obtain 1/16 inch (2 mm) to 3/
32 inch (3 mm) maximum clearance between latches (7) and setscrews (11)
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