Watson-Marlow DuCoNite 25 - Manual (Page 43)

MAINTENANCE
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14. Fit the removed shims (C) again. Position the
(new) pressing shoe (B), check that the Nord-
Lock
®
rings (D) have been positioned correctly
and tighten the retaining bolt(s) (A) a few turns.
Refer to §
10.1.7 .
15. Check the gasket (C) for damage and replace if
necessary. Refit the cover (B). Make sure that
the 4 bolts (A) are refitted and that they are
tightened in the correct order, diagonally
opposite each other. Refer to §
10.1.7 .
16. Switch on the electrical supply to the pump.
17. Fit the (new) pump hose. Refer to § 7.7.3 .
7.9 Adjusting hose compression force
(shimming)
Remove the pump cover before fitting and removing
shims. In order to determine the correct number of
shims for your specific application refer to §
10.1.8 .
CAUTION
Too many shims, this means a too high
compression force on the pump hose, will
create a too high load on the pump head
and pump hose, which may result in a
reduction of the life of the pump hose and
bearings.