INNER PONTON AND OUTER PONTON SEPARATION (Contd)
SEPARATING OUTER PONTONS FROM INNER PONTONS
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 ponton. Failure to comply may
result in damage to equipment or injury to personnel.
Separation of left and right outer pontons is performed the same
way. Left side is shown.
Remove screw (20), washer (19), and pin (18) from connecting link (17) and stabilizer lever (16), and
lay connecting link (17) down.
IRB hoisting gear must be adjusted so that outer ponton will hang
level during separation.
Attach lifting device and IRB hoisting gear to load receiving pins on outer ponton (1).
Unlock foldlock (2) and raise outer ponton (1) from inner ponton (3) until preload tension on torsion
bar lever (4) is off turnbuckle (6).
Remove two screws (5), washers (8), pins (7), and turnbuckle (6) from torsion bar lever (4) and
stabilizer bracket (9).
Secure outer ponton (1) by installing tag lines prior to lifting.
Using lifting device, lift and swing outer ponton (1) to open vertical position.
Remove bolt (25) from outer ponton (1) and pin (23).
Remove screw (24) from pin (23), and using slide hammer, remove pin (23) and two spacer plates
(21) from outer ponton (1) and stabilizer bracket (22).
Turn stopscrew (11) clockwise until head of stopscrew (11) contacts hinge bracket (14).
Remove four screws (12) and washers (13) from hinge bracket (14) and outer ponton (1).
Ensure tag lines are held tight to prevent outer ponton from
swinging, or injury to personnel or damage to equipment may
Using lifting device, remove outer ponton (1) from inner ponton (3) and set on dunnage.
Note location and quantity of spacers for installation.
Lift hinge bracket (14) out of outer ponton (1), and secure in vertical position. Remove spacers (15)
Perform step 13 if inner ponton(s) will be moved.
Using suitable lifting device and IRB hoisting gear attached to two deck pins, lift inner ponton (3)