TM 5-5420-278-24&P
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INNER PONTON AND OUTER PONTON SEPARATION (Contd)
SEPARATING INNER PONTONS
1.
Using transporter or suitable lifting device and IRB hoisting gear, raise bay (1), position dunnage
under inner pontons (2), and lower bay (1) on dunnage.
NOTE
Ensure the two long chains of IRB hoisting gear are connected to
the load receiving pins so pontons will hang level during
separation.
2.
Attach lifting device and IRB hoisting gear to outer ponton load receiving pins (19) on outer
pontons (3), and take up slack.
3.
Remove two cotter pins (4) and washers (5) and pin (16), from cover (18) and shaft of bellcrank (12).
Discard cotter pins (4).
4.
Remove two locknuts (7), screws (9), and connecting links (17) and cover (18) from inner ponton
brackets (8). Discard locknuts (7).
5.
Remove locknut (15) and screw (6) from front collar (14), drive shaft of bellcrank (12) forward, and
remove collar (14). Discard locknut (15).
NOTE
Note location and quantity of shims for installation.
6.
Remove bellcrank (12) from inner ponton hinges (11) and (13), and remove shims (10).
7.
Repeat steps 1 through 6 to remove bellcrank (12) from opposite end.
WARNING
All personnel must stand clear during lifting operations. Ensure
ponton foldlocks and travel latch are in good mechanical condition
and securely locked prior to lifting bay. Failure to comply may
result in damage to equipment or injury to personnel.
8.
Open two travel latches and lift and separate inner pontons (2) using lifting device.
9.
Set inner ponton (2) down with roadway deck resting on dunnage.
