It's kind of a solution, but the cost would be extreme.
Last month we sealed the hydrostatic motors twice, on 393 and on 392 (the spanners are a bit different.)
The seal kit (for both sides) costs about 100 -150 Euro.
The bearings (OEM) (2pcs) - about 50-70 Euro.
5 hours of on site work for two technicians (10 hours total)
With our labour rate and travel, the total charge was about 600 Euro.
For SE unit you'ld pay several tousands.
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