PIN WHEEL DRIVE ASSEMBLY REPLACEMENT (Contd)
Removal and installation of front and rear pin wheel drive
assemblies are performed the same way. Only the number of hoses
or steel tubes change for the rear pin wheel drive assembly. Rear
pin wheel drive assembly is shown.
Cap or plug all hoses, connections, and openings immediately after
disconnection to prevent contamination. Remove caps or plugs prior
to installation. Failure to do so may result in damage to equipment.
Tag hoses for installation.
Have container ready to catch oil.
Loosen nut (1) and disconnect hose (11) from adapter (2) on pin wheel drive assembly (3).
Loosen nut (9) and disconnect hose (10) from adapter (8) on pin wheel drive assembly (3).
Support pin wheel drive assembly (3) and remove three screws (6), washers (5), and pin wheel drive
assembly (3) from roller track assembly (4) on launch boom (7).
Remove adapters (2) and (8) from pin wheel drive assembly (3).
Apply a light coat of hydraulic oil to O-rings at installation.
The pallet hydraulic system is self-bleeding, and with the exception
of the telescopic tube hydraulic cylinders, there is no requirement
Install adapters (2) and (8) on pin wheel drive assembly (3).
Ensure that all mounting hardware is tightened to metric
standards unless otherwise noted. Refer to metric torque limits in
Install pin wheel drive assembly (3) on roller track assembly (4) of launch boom (7) with three
washers (5) and screw (6).
Connect hose (10) to adapter (8) of pin wheel drive assembly (3) and tighten nut (9).
Connect hose (11) to adapter (2) of pin wheel drive assembly (3) and tighten nut (1).
Lift launch boom to 90 degrees position. Refer to TM -5-5420-280-10 or install bridge halves on