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Watson-Marlow 620DuN and 620Du User Manual 90
LoadSure industrial elements - which have black connectors - are connected to a
tubing system using cam-lock (cam and groove) fittings.
Push the female fitting over the element connector.
Pull both cam levers closed until they engage.
29.7 620R continuous tube loading
620R continuous tubing pumpheads are factory set to accept Watson-Marlow
600 series 3.2mm wall tubing. Pumping performance will be adversely affected
if Watson-Marlow tubing is not used.
Select the tube clamp set which is correct for the tubing size to be used.
Locate the two “U”-shaped track clamp halves into the pumphead ports (The
“U”- shape ensures correct loading).
Locate the corresponding guard clamp halves which have raised “T” locating
sections, into the slots on the inner guard face above and below the guard
hinge. Push and slide into their locked position.
Closing the guard will align the two halves of the clamp around the tubing.
Disengage the rollers.
Locate one end of the tubing into the lower port “U” clamp and hold firmly in
position.
Wrap the tubing tightly around the retracted rollers, making sure that there is
no twisting through its length.
Locate the other end of the tubing into the upper port “U” clamp.
Hold both ends of the tubing in one hand maintaining tension around the
retracted rollers.
Engage the rollers.
Always isolate the pump from the mains power
supply before opening the guard or performing
any positioning, removal or maintenance.