Watson-Marlow DuCoNite 25 User Manual
Page 50
TROUBLESHOOTING
50
High pump temperature.
Non standard hose lubri-
cant used.
Consult your Bredel repre-
sentative for the correct
lubricant.
Low lubricant level.
Add Bredel Genuine Hose
Lubricant. For the required
amount of lubricant refer to
§
Product temperature too
high.
Consult your Bredel repre-
sentative about the maxi-
mum 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 §
. Remove
excess shims.
High pump speed.
Reduce pump speed to a
minimum. Consult with
your Bredel pump repre-
sentative for advice on
optimum pump speeds.
Problem
Possible cause
Correction