Watson-Marlow SP40 - Manual (Page 33)

GENERAL MAINTENANCE
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7.7 Exchanging replacement parts
7.7.1 Replacing pressing shoes
1. Remove the lubricant (refer to section 7.5.1).
2. Remove the pump hose (refer to section 7.5.2).
3. Remove the cover.
4. Loosen the bolt (A) a few turns.
5. Remove the shims (B).
6. Loosen the bolt (A) completely to remove the
pressing shoe. If necessary replace the bolt.
7. Position the (new) pressing shoe.
8. Fit the removed shims again.
9. Tighten the retaining bolt (A), refer to section
11.1.7.
10. Repeat the procedure for the other pressing
shoe.
11. Check the cover O-ring for damage and replace
if necessary.
12. Install the cover. Tighten the bolts in the correct
order, diagonally opposite of each other, refer to
section 11.1.7.
13. Switch on the electrical supply.
14. Install the hose and refill the lubricant, refer to
section 7.5.3 through 7.5.5.
7.7.2 Replacing seal and bearings
1. Remove the lubricant (refer to section 7.5.1).
2. Remove the pump hose (refer to section 7.5.2).
3. Remove the cover.
4. Isolate the pump from the electrical supply.
5. Loosen the coupling on the drive end of the
shaft.
Warning
The front cover should not be removed
whilst the hose is in place. This can cause
a deformation of the pump casing and can
lead to too much tension in the bolts after
refitting the cover.
A
B
A
B