Watson-Marlow SPS 600 - Manual (Page 18)

Revision 4.1 / March 2014 18
23 Dismantling
Inform electrician!
Disconnect drive unit from mains!
Secure against being accidentally
switched back on!
Undo the 3 cap screws Item 40 and remove the front
bearing housing cover Item 49. Release the tabwasher Item
44.
Undo and remove the locking screw Item 45.
Undo the 3 cap screws Item 51 and remove them.
The front bearing housing Item 52 can then be pulled off the
carrier shaft Item 24 together with the spacer sleeve Item
54.
Remove the flushing pipes from the flush ports. Undo and
remove the lock nut Item 56 from the pump shaft.
Undo and remove the 6 cap nuts Item 4, which hold the
front cover to the pump housing.
Once the cap nuts have been removed, with the help of a
second person you can remove the front cover from the
pump housing, by pulling it off horizontally via the studs
Item 38.
The two front cover pins Item 59 help you to grip the
housing.
Attention:
The front housing is very
heavy!!! (Approx. 60 kg)
The innards of the pump are now in front of you.
I.e., you can see the gate guide, the gate, the shaft
sleeves, the rotor and the two halves of the liner.
When dismantling please ensure that the pump
parts, especially the internal parts and the seals are
not damaged.
You can now pull off the complete front sealing
system from the shaft. Remove the front half of the
liner from the pump housing.
The rotor Item 34, the gate Item 8 and the gate
guide Item 5 are pulled off the pump shaft Item 24,
or the pump housing Item 32 as a single unit.
Here too you should have another
person to help you, one person
should protect the gate guide from
falling and the other the rest.
The remaining parts and the second half of the liner
can also be axially pulled from the shaft or the pump
housing.
If you also want to replace the sealing fixture, or the
lip seals, it might be necessary to unscrew the pump
housing Item 32.
To do this you should use the special assembly tool
from Watson-Marlow MasoSine.
Attention: The pump housing
is very heavy and must not
fall onto the shaft!
ATTENTION!