TM 9-2350-277-20-4
ADJUST RAMP LOCK (M113A3, M901A3, M981A3, AND M1059A3 ONLY)
0521 00
THIS WORK PACKAGE COVERS:
Ramp Lock Test (page 0521 00-1).
Ramp Seal Test (page 0521 00-1).
Ramp Lock Adjustment (page 0521 00-2).
INITIAL SETUP:
Maintenance Level
Unit
Tools and Special Tools
General Mechanic’s Tool Kit (WP 0926 00, Item 65)
Materials/Parts
Cotter pin
Flat washer (as needed)
Key washer (8)
Key washer (carriers with hex shaped ramp lock rods
only) (2)
Personnel Required
Unit Mechanic
Helper (H)
References
See your -10
Equipment Condition
Engine stopped (see your -10)
Carrier blocked (see your -10)
TEST AND INSPECTION
RAMP LOCK TEST
1.
Turn MASTER SWITCH ON. Start engine (see your -10).
2.
Raise and lock ramp (see your -10).
3.
With ramp up, ramp lock handle should latch tight. Swing handle forward until it clicks. If linkage is adjusted right, it
should take a good push to latch the handle.
4.
Check that top, sides, and bottom of ramp are aligned right.
NOTE
Ramp seal should be compressed enough to prevent water leakage, yet without metal-to-metal
contact between ramp and hull.
5.
If ramp handle will not latch or ramp does not seal, perform ramp seal test (Step 1) and adjust ramp lock (Step 1).
RAMP SEAL TEST
WARNING
Lowering ramp could injure personnel. Make sure no one is in ramp zone before you lower
ramp. If tactical situation permits, sound horn before dropping ramp.
1.
Lower ramp (see your -10).
0521 00-1
