The replacement of the seals of the group is not difficult, but it takes some special tools:

- A tool with two pins that fit into the two holes of the brass sleeve

- a nose pliers curved

- a socket wrench 26 mm

 

First remove the lever in order to proceed unhindered, by removing the front pin

 

The first thing to do is to remove the old seal and unscrew the brass sleeve. Not necessary to remove the shower plate

If you haven't the special tool, you can use a chisel and a hammer.

 

to compress the spring I used an old car jack, with a thickness of metal to push the piston upwards

 

if you want to remove even the piston, must compress the spring upwards, to remove the pin that locks the shaft

I used an old car jack, with a thickness of metal to push the piston upwards

 

after removing the pin, the car jack can be lowered to release the piston with the spring

 

Finally, unscrew with a socket wrench 26 mm the nut that locks the shaft piston seal

 

 

and finally here are all the parts of the group, after cleaning, with the gaskets on the side