3-16. Interior Bay Roadway Pontons.
This task covers:
General Mechanic's Tool Kt
Interior 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 3-12)
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 ponton leak detector into bow ponton (4).
Connect air source to leak detector and pressurize to 1.5 ± 0.1 psig.
Apply soapy solution to ponton surfaces and deck for leaks.
Inspect plates and roadway decking for dents and repair dents in accordance with TM 9-450.
Inspect plates and decks for cracks and repair cracks in accordance with TM 9-237.
Inspect surfaces for damage or bent, gouged, or distorted sheeting, structural angles, connec-
tors blocks, receptacles, bars, plates and decking extrusion, link supports, cable guide and port
tubes and repair with file or suitable bending tool.
Perform radiographic and magnetic particle inspection of weld joint between rear base of ponton
yoke and steel plate used to mount yoke in accordance with MIL-R-11468 standard I, and