New Holland CX720 Repair Manual page 2708

4. Install small sun gear (2) in output gear (1).
IMPORTANT: Both sun gears have a mark, take care the
marks are in line.
5. Install retaining ring (1).
6. Install bearing outer ring (2) in the other gearbox
housing (1).
Install seal (3) in gearbox housing (1).
NOTE: In case mud seals are installed, proceed with steps
8 and 9. Otherwise proceed with step 10.
TRAVELLING - FRONT AXLE
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D.10.A / 54
4
ZDA4355A
5
ZDA4356A
6
ZDA4636A