Attach pinion housing to gearbox support from below as shown in figure (oil filter = -arrow B-) at the hole marked -1--arrow A-.
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Then align pinion housing with remaining 3 holes and secure.
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Unscrew 12-point nut for shaft bevel gear.
A -
3/4” drive ratchet
Note
t
When removing 12-point nut, secure shaft bevel gear against falling out.
t
The loosening torque is very high. If necessary, add an extension to the ratchet.
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Depending on the tightness of fit (press fit or fit with play), it may be necessary to press shaft bevel gear out of inner race of small roller bearing.
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Remove inner race for small tapered roller bearing and spacer sleeve.
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Press small tapered roller bearing outer race out of pinion housing.
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Press large tapered roller bearing outer race -A- out of pinion housing.
B -
Internal puller, 56 … 70 mm, e.g. -Kukko 21/8-
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Pull large tapered roller bearing inner race off shaft bevel gear.
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Clean thread on nut.
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Pull shaft bevel gear oil seal out of pinion housing.