Watson-Marlow SP40 - Manual (Page 36)

GENERAL MAINTENANCE
33
7.8 Hose compression force adjustment
(shimming)
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. Add or remove shims (B).
6. Tighten the retaining bolt(s), refer to section
11.1.7 for bolt torques.
7. Repeat the procedure for the other pressing
shoe.
8. Check the cover O-ring for damage and replace
if necessary.
9. Install the cover. Tighten the bolts in the correct
order, diagonally opposite of each other, refer to
section 11.1.7.
10. Switch on the electrical supply.
11. Install the hose and refill the lubricant, refer to
section 7.5.3 through 7.5.5.
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