Brief summary of what happened;

A busy mechanic got this Iseki TL1900 in 2019 to repair. They first started with the lifting cylinder of the rear hydraulics. Then they removed(destroyed) the hydraulic pump. The mechanic did not remember the rest, but my suspicion was that they had screwed and turned a little too much.

After changing the hydraulic pump in this video, I notice that the system builds up 'pressure'. You notice this because the engine uses a lot of energy and it looks like it is under pressure. This is because the hydraulics cannot run freely. To understand the working of hydraulics I would like to make another video. Conclusion; the mechanic did not know what was wrong with the tractor because of several actions. Fortunately, by logical thinking we have seen a plunger/valve that was the wrong way round. After replacing the hydraulic pump and assembling the parts correctly, the tractor worked perfectly again!

The hydraulic pump used in this video;

Hydrauliekpomp Iseki TS en TL:
https://shop4trac.com/motoronderdelen...

Hydraulic pump Iseki TS & TL:
https://shop4trac.com/en/engine-parts...

Hydraulikpumpe Iseki TS & TL:

https://shop4trac.com/de/motorteile/h...

Pompe hydraulique Iseki TS | TL serie:

https://shop4trac.com/fr/pieces-de-mo...