TM 5-5420-278-24&P0027 000027 00-2FRONT SWIVEL HOOK AND RETAINER SHAFT REPLACEMENT (Contd)NOTERemoval and installation of right and left swivel hooks areperformed the same way. Right side is shown. FRONT SWIVEL HOOK REMOVAL1.Using lifting device and sling, lower bay down so that roadway of inner ponton (3) is resting ondunnage.2.Place swivel hook lever (7) in closed position.3.Remove two cotter pins (10), washers (9), and pin (11) from tension spring holder (12) and swivelhook lever (7), and disconnect tension spring holder (12) from bracket (6). Discard cotter pins (10).4.Remove tension spring holder (12), spring (13), and spacer (16) from tension spring pin (15).5.Remove two cotter pins (14), washers (18), pin (17), and tension spring pin (15) from bracket (19) oninner ponton (3). Discard cotter pins (14).6.Remove locknut (8) and screw (5) from swivel hook lever (7) and swivel hook pin (20). Discardlocknut (8).7.Unlock foldlock and raise outer ponton to vertical position.8.Remove setscrew (1) and indicator plate (2) from swivel hook pin (20).NOTENote location and quantity of spacers for installation.9.Pull swivel hook pin (20) out of swivel hook lever (7) and inner ponton (3), and remove swivel hooklever (7) and two spacers (4) from inner ponton (3).RETAINER SHAFT REMOVALNOTERemoval and installation of retainer shafts are performed thesame way. Right side is shown. 1.Mark position of swivel plate (24), and remove screw (22) and washer (23) from outer ponton (25).2.Remove screw (21) and washer (28) from control rod (26), and mark position of swivel plate (24) oncontrol rod (26) before removing swivel plate (24).NOTENote location and quantity of hex washers for installation. 3.Remove swivel plate (24) and three hex washers (27) from control rod (26).4.Remove control rod (26) from outer ponton (25).
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