Watson-Marlow 323Dz User Manual
44
Select enough tube length for the curve of the pump track. Slide the tube into
the open pumphead. The tube must not be twisted or stretched against the
rollers.
Ensure the tubing locates in the centre of the tube clamps. Carefully lower the
track. Check that the tube is not crushed in the clamps or over stretched.
When using Marprene tubing
Re-tension new tube after the first 30 minutes of running. Stop the pump. Release the
flip top. Allow the tube to resettle naturally across the rollers. Re-clamp the tube. Re-
start the pump. This will correct the normal stretching that occurs with new Marprene
tube. The correct tension is essential for good tube life.
21.3 313D and 314D
pumphead spares
Spare
Description
1
033.3411.000
313D three-roller pumphead
2
033.3431.000
313X extension three-roller pumphead
1
033.4411.000
314D four-roller pumphead
2
033.4431.000
314X extension four-roller pumphead
1
033.3511.000
313D2 three-roller pumphead for 2.4mm tube
2
033.3531.000
313X2 extension three-roller pumphead for 2.4mm
tube
1
033.4511.000
314D2 four-roller pumphead for 2.4mm tube
2
033.4531.000
314X2 extension four-roller pumphead for 2.4mm tube
