Watson-Marlow 825 - Manual (Page 8)

Watson-Marlow 825 and 840 User Manual 8
11 Roller adjustment
Loosen the roller locking nut (1) and undo rock-
er locking nuts (2)
Undo the roller spindle locking nuts
Rotate roller for occlusion adjustment (below).
Setting 2 represents the factory default setting.
12 CIP
When using a clockwise pumping direction and unlocked rockers no adjustment is
required. If rockers are locked for bi-directional pumping unlock one rocker mecha-
nism. Rotate rotor anticlockwise until no tube occlusion occurs. The free flow of
cleaning agents through the tubing is now possible.
Ensure that no part of the body inside the pumphead
while the pump is running.