Watson-Marlow 900 Series - Manual (Page 9)

Page 9
Locate the upper port connector
with the securing nuts and the
Allen key supplied.
Rotate the rotor anticlockwise and
drive the other end of the tube out
of the lower casing port. Locate
the support ring, compression
gland and compression ring.
Locate the lower port connector
using the securing nuts and Allen
key supplied.
Replace the lubricant drainage
plug then fill the pumphead with
lubricant to the specified volume.
The window in the pumphead door
is a motion window and provides a
visual indication of the rotation of
the rotor within the pumphead.
This window should not be used
as lubricant level indicator.
Locate and secure the lubricant
filler plug.
Manual tube removal
Isolate the motor from the
mains supply before opening
the pumphead door.
Place a container under the
pumphead, then remove the
lubricant drainage plug and the
lubricant filler plug. Allow the
lubricant to drain from the
pumphead.
Remove the four door locking
screws with the Allen key
supplied. Swing the pumphead
door open.