Watson-Marlow SP40 - Manual (Page 55)

TROUBLESHOOTING
52
High pump temperature. Non standard hose
lubricant used. Consult the Bredel
representative for the
correct lubricant.
Low lubricant level. Add Bredel lubricant, for
the required amount of
lubricant refer to section
7.3.
Product temperature too
high. Consult the Bredel
representative about the
maximum temperature
range of the product.
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 section 11.1.8.
Remove excess shims.
High pump speed. Reduce pump speed to a
minimum. Consult with
your Bredel representative
for advice on optimum
pump speeds.
Problem Possible cause Correction