Drain the working fluid from the hydraulic drive (see Bleeding the clutch hydraulic drive and replacing the working fluid in the gazelle)
For this operation, you will need brake fluid, a bleed hose, a key for 10, a container for draining fluid, a key for 17.
The hydraulic clutch release uses DOT-3 or DOT-4 brake fluid.
Holding the hose with the “17” key, turn the tube fitting out of it with the “10” key
Instead of the usual "10" key, it is convenient to use a special key.
Pliers remove the fixing plate
Use the “17” key to turn the hose out of the working cylinder
There is a copper sealing washer under the hose end.
Install the new hose in reverse order.
The copper washer needs to be replaced.
Fill in fresh working fluid and pump the hydraulic drive.