New Holland CX720 Repair Manual page 3648

4. Install original shim packs (5) and spacer (6).
5. Install the pre-assembled shafts partially in, by only
pushing on the outer ring of the bearings. Check if
the preload of these pinions is still between the range
shown. This preload (assembly) should be 1.2 - 2.0
N·m. (11 - 18 in. lbs).
6. On the output shaft, install the spacer (4) outer shim
pack (5) and circlip (6). Add shims at (5) as required
to ensure there is no clearance (zero endplay) be-
tween the spacer and circlip.
On the input shaft, install the spacer (3) outer shim
pack (1) and circlip (2). Add shims at (1) as required
to ensure there is no clearance (zero endplay) be-
tween the shaft assembly and the circlip.
While holding the output shaft to apply a light load
to it, rotate the input shaft clockwise several revolu-
tions, as viewed from the end of the shaft. This will
seat the bearing rollers, and will also mark the gear
contact pattern in the bluing compound on the gear
teeth.
Check the gear backlash. The back lash should be
between 0.11 - 0.3 mm (0.004 - 0.012 in).
Remove the input shaft from the gearbox, and check
the gear contact pattern on the gears; the contact
pattern should be 40 % central-toe, as shown in Fig-
ure 7.
7. Backlash Adjustment
The shaft that is moved to adjust the backlash
depends on whether the backlash needs to be
increased or decreased, and on the gear contact
pattern observed. Refer to the following chart to
determine the adjustment required.
CROP PROCESSING - STORING AND HANDLING Grain storing
2 4/7/2006
K.60.B / 14
4
ZDA3531A_1365
5
ZDA3541A
6
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