Problem Possible cause Correction
High pump
temperature.
Non-standard hose lubricant used.
In case of doubt, consult your
Bredel representative.
Low lubricant level.
Add Bredel Genuine Hose
Lubricant. For the required
amount of lubricant
Refer to "Lubricant table
pump" on page 83
Product temperature too high.
Check the performance graph.
Refer to "Performance graphs"
on page 35
Internal friction on the hose caused by blocked
or poor suction characteristics.
Check pipework/ valves for
blockages. Ensure that the
suction pipework is as short as
possible and that the diameter is
large enough.
Over-shimming of the pump rotor shoes.
Consult the diagram. Refer to
"Shims specifications" on
page 85 . Remove excess shims.
High pump speed.
Reduce pump speed to a
minimum. Contact your Bredel
representative for advice on
optimum pump speeds.
m-bredel-25-32-en-05 77
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