As far as I understood you have the problem with the coupling flange P/N 5022307400.
It's mounted on the drive shaft (spline) and tightened with M10x30 heksagon head screw.
Do you have the problems with the screw?
If yes - the Loctite 270 is used there. Try to heat up the bolt.
If the problem is with removal of the flange from the shaft - you must heat it and then use the puller. Sometimes it goes hard.
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