Let's start disassembling the rack.

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I hope the report will be useful for someone.

Let's start disassembling the rack.

1 with a key of 12 we unscrew the return tubes, during installation it is necessary to change the sealing gum (any tractor shop issue price is 50 rubles)
2 with the same key for 12 we unscrew the body of this mechanism and remove it (if it is necessary to change the Teflon rings, there is a retaining ring, remove it and change it, there is also a sealing rubber ring)

3 to pull out the camshaft, it is necessary to unscrew the protective cap with a key of 24 (it is necessary to drill the factory core (fixation), then with a key of 17 the lower nut of the camshaft and unscrewing it counterclockwise, we take it out
And then the reason for the "tight steering" was discovered - the oil seal was not put in place. When installing the housing back without taking the camshaft out of the rack, the oil seal does not sit about 2-3 mm in place and the fluid is not at the same pressure, etc. Plus, together with the lubrication on the worm pair, gur's slurry was found, but it should not be there.
we seal the gasket or what is left of it and assemble it in the reverse order. We pump the system and rejoice. After installing the oil seal in place, my problems disappeared, which means that it was the cause of the "tight steering". Thank you so much for reading so many letters, please do not beat this my first report. I apologize for breaking it into two parts, but more than 12 attachments do not work.
I hope the report will be useful for someone.