2-12. Ramp Bay Roadway Pontons.
This task covers:
General Mechanics TooI Kit
Ramp bay roadway ponton removed
Compound, Covering (Item 1, Appendix B)
Solvent, Dry Cleaning (Item 2, Appendix B)
Rags, Wiping (Item 5, Appendix B)
a. Repair (figure 2-5)
Dry cleaning solvent, PD-680, used to dean parts is potentially dangerous to personnel and
property. Avoid repeated and prolonged skin contact. Do not use near open flame or exces-
sive heat. Flash point of solvent is 100°F-138°F (38°C-60°C).
Clean roadway pontons using dry cleaning solvent and dry thoroughly.
Raise lever on snap-tite plug (1) and remove plug.
Remove screw (2) securing chain (3) and remove chain.
Install proton leak detector into roadway ponton (4).
Connect air source to leak detector and pressurize ponton to 1.5 ± 0.1 psig.
Apply soapy solution to ponton surfaces and check for leaks.
Inspect plates and roadway decking for dents, and repair dents in accordance with TM 9-450.
Inspect plates and check for cracks, and repair cracks by welding in accordance with TM 9-237.
Inspect surfaces for damage or minor gouging or plate distortion and repair with a file or suitable
After repair of surface damage, dean, treat and paint the repaired area in accordance with
MIL-T-704, Type B.
Remove ponton leak detector.
Mark off cavities and bores in the ramp roadway and apply nonslip deck covering compound to
the repaired top and side deck surfaces.
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