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520REC element loading procedure
Note
: The element loading procedure is the same for industrial (pictured) and sanitary
elements.
Select an appropriate Watson-Marlow 520RE tubing element, paying attention to
pressure capability, bore size, tubing material and type of connector. See the table above
for pressure ratings.
Check that the connector sleeve of the element to be fitted is
the same colour as the pumphead rotor cap
.
Slide the connector D-flange at one end of the element into the lower connector D-slot.
Disengage the rotor clutch by fully depressing the yellow clutch button on the side of the
rotor hub and turning the hub a few degrees while the clutch button is still depressed.
The rotor can now rotate independently of the gearbox and motor for one full revolution.
If the clutch re-engages before tube fitting is complete, depress the clutch button again
and turn the rotor a few degrees.
Feed the tubing element around the pumphead track, turning the rotor as necessary.
Make sure the tubing is not twisted or pinched between the guide rollers and the track.
Slide the second connector D-flange into the upper connector D-slot.
Check that the element lies snugly in the middle of the track and that the connectior
flanges are pushed fully home.
Close the guard, pushing it fully home until the latch engages.
Connect suitable pipework to the pumphead tubing using appropriate connectors. See
below.
Page 27 of 47
Watson-Marlow Bredel E-Manuals
14/12/2009
file://M:\staging\pdfs-global\m-521-cc-gb-03.htm