TM 5-5420-209-12
4-101.
Roadway Pontons.
This task covers:
a. Replace
b. Repair
INITIAL SETUP
Tools
Equipment Conditions:
General Mechanic’s Automotive Tool Kit
Bow ponton removed (para. 4-94).
(Item 1, Appendix B)
Cable assembly removed (para. 4-90).
Ponton Leak Detector (Item 3, Appendix B)
Materials/Parts
Lifting Slings (NSN 1670-00-907-3080)
Sealing Compound (Item 14, Appendix E)
Compound, Deck Covering (Item 1, Appendix E)
a. Replace. (figure 4-132)
(1) Connect suitable lifting device to roadway ponton lift points (1) and take in slack.
(2) Remove two cotter pins (2), washers (3), and remove pin (4).
(3) Remove nut (5), screw (6), collar (7), hinge pin (8) and washers (9).
(4) Remove two nuts (10), screws (11) and Iinks and lever (12).
(5) Remove nut (13), screw (14), collar, and hinge pin (16).
WARNING
Weight of ponton will shift in direction of lift points during lifting.
(6) Unlatch front and rear travel latches (17) and remove roadway ponton (18).
WARNING
The weight distribution of load will result in the bottom of the ponton to swing in the direction of lift point.
(7) Position roadway ponton (17) adjacent to roadway ponton (18) and aline hinges.
(8) Install rear hinge pin (16), collar (15) and secure with screw (14) and nut (13). Torque screw to120-132 ft-lbs
(162-179 Nm).
(9) Install links and lever (12), and secure with two screws (11) and nuts (10). Torque screws to 120-132 ft-lbs
(162-179 Nm).
(10) Install front hinge pin (8), washers (9), collar (7), and secure with screw (5) and washer (6). Torque screw
to 120-132 ft-lbs (162-179 Nm).
4-324
