[loki_the_glt]

On the near-side chassis leg, if you follow the pipes from the master cylinder, you'll find a piece of kit with 8 pipes coming out of it. This is the "spider block" or "octopus" and it splits the fluid among the various calipers.

There is also a switch on the unit, made of nylon so very fragile. This switch needs to be cracked open to let the valve centre itself; you may(probably will) need to re-bleed the brakes themselves afterwards if any air gets into the system.