Not massively different to the other mixer on this blog. In the pic below, the hot inlet to the block is on the right (left when mounted)
The cartridge as shown has cold on the RH mesh.
Taken apart as the temperature control seized up due to limescale and little use. There was plenty of grease in the LH threaded part which was moved around to lubricate as needed. Scale removed gently with a screwdriver and finished with emery cloth.
To get the temperature knob in the right place, set knurl to full hot and place grey part such that the 38C limit pin on knob sits just in front of the max temp grey part. When the knob is then rotated it will correctly stop at 38C. Then need to readjust the knurl, so that full cold forces the thermostatic piston to full cold. Partly remove the knob so that it freely turns and turn in the cold direction until you feel the resistance of hitting the piston. Make this point 20C. Then refit knob and turn towards full hot. When it stops, you'll find that by partly removing the knob, that full hot is ~1/8 turn.
If the last part, readjusting the knurl, is not carried out, the piston has nothing to push against, so will only do full hot.
Notes.
In fully cold, the piston is forced ~0.5mm before it hits the stop.
The piston is 5.5mm at ~16C, and extends to 7mm at ~45C
The control knob piston is 22mm at full cold, and extends to 26.5mm at full hot. moves ~2.5mm per 1/2 turn
Thermostatic capsule marked 5701 8H258
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