Fluid Leakage - Bredel 40-100 Operating Manual

7.6

Fluid leakage

The pump uses a lubricated rotor to compress the hose. This means the pumphead must be filled
with sufficient lubricant during operation. This lubricant is contained in the pump housing by the
front cover and by a dynamic seal on the back. The gearbox is filled with gearbox lubricant.
Seal damage can occur due to normal wear in time, but is seriously accelerated if the seal gets in
contact with contaminated lubricant. Thorough cleaning of the pump housing after a hose failure and
regular replacement of the lubricant is strongly advised.
Note: Regularly check the pumphead for any leakage around the cover, the hose connections, and
the rear of the pumphead.
The pumphead and gearbox are directly coupled to each other. A special feature is included in the
pumphead to allow early detection of seal damage of the pump or gearbox.
This feature is called the leakage zone (A). Drops of lubricant visible at the back of the pump indicate
likely seal failure. To avoid consequential damage, the pump must be stopped and lubricant levels of
the pumphead and gearbox must be checked. The damaged seal should be replaced.
WARNING
Risk of injury from falling! Process fluid mixed with pump lubricant that is
leaking from the pump can make floors slippery.
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