English (GB)
23
10.2.2 Installation types D and H
1. Loosen the six fastening screws and close the impeller clear-
ance by tightening the three set screws. Tighten the screws
diagonally to move the suction cover evenly.
2. Measure the distance "L" between suction cover and pump
housing at three points next to the set screws, using feeler
gauges or callipers, and make a note of the distance.
3. Loosen the set screws and draw back the suction cover with
the distance of L - X (where X is the value stated in the impel-
ler clearance table), using the six fastening screws.
See fig. 17.
4. Tighten all set screws and check that the new distance "L" at
the three reference points (set screws) is the same.
Fig. 17 Impeller clearance adjustment, types D and H
10.3 Contaminated pumps
If Grundfos is requested to service the pump, Grundfos must be
contacted with details about the pumped liquid etc. before the
pump is returned for service. Otherwise Grundfos can refuse to
accept the pump for service.
Possible costs of returning the pump are to be paid by the
customer.
However, any application for service (no matter to whom it may
be made) must include details about the pumped liquid if the
pump has been used for liquids which are injurious to health or
toxic.
Warning
Do not use too much force when tightening the
fastening screws as this may damage the
bearings.
TM05 1916 3911
Warning
If a pump has been used for a liquid which is
injurious to health or toxic, the pump will be
classified as contaminated.
L
X mm
Fastening screw Fastening screw
Set screw
To Next Page
Loading...
Need help?
General
