Watson-Marlow SPS - Manual (Page 58)

MasoSine SPS sinusoidal pumps User Manual 58
Pumps with a single mechanical seal: removing the rear liner and
the backing ring
l Pull the rear liner to remove it.
l The backing ring may remain on the shaft or it may come off the shaft with the
rear liner.
l Remove the backing ring.
The backing ring
SPS 200 pumps
with a single
mechanical seal