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 TM 55-1905-223-24-10
4-25. Repair Bow Ramp Hinge Assembly. (FIGURE 4-17)
This task covers:
a. Removal,
b. Repair,
c. Replacement.
INITIAL SETUP
Tools
Equipment Condition
Tool kit, general mechanic's,
TM 55-1905-223-10, bow ramp assembly
shut down and tagged "Out of Service -
Lifting sling P/N 3375958
Do Not Operate."
Vessel must be dry-docked to p erform
Materials/Parts
this task.
Bow ramp hinge assembly P/N 21-69072
Lubricating grease, Item 7, Appendix C
Warning tags, Item 1, Appendix C
Supports for ramp, Item 13, Appendix C
REMOVAL
WARNING
o
Ensure that all personnel are clear of the winch wire ropes, sheaves, chains,
chain stoppers, wildcats, ramp and ramp hinges before operating the bow
ramp assembly to raise or lower ramp. A failing wire rope or stud chain can
cause serious injury or death. Notify operations personnel prior to starting
system.
o
Electrical components contain high voltages that can cause severe injury or
death. Before servicing, adjusting, replacing electrical or mechanical
components tag "Out of Service - Do Not Operate" and disconnect the
power supply to the three control panels and the electrical motor in the
hydraulic power pack assembly.
Change 1
4-72
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