Maintena nce
WBV.PU.002.EN VX215QD V2.0
51
Adjusting the volume flow
The volume flow of the flushing fluid depends on the application and the degree of contamination. The higher
the volume flow, the better the flushing effect.
The volume flow should be at least 0.1 l/min and no more than 10 l/min.
We recommend the flushing operation as specified in
Fig.
“Flushing operation - parallel":
•
Every cartridge mechanical seal is flushed with clean flushing fluid.
•
A possible defect of the single cartridge mechanical seal is detected.
Alternatively, the flushing operation can be done as indicated in
Fig.
“Flushing operation - in series":
•
Flushing fluid is supplied only via the lower flushing inlet and reaches the upper flushing outlet via the
two cartridge mechanical seals.
Note with this alternative flushing operation:
A possible defect cannot be assigned to the single cartridge mechanical seal.
Possible impurities of the cartridge mechanical seal rinsed for the first time can get into the
subsequent mechanical seal.
8.5
Gearbox
8.5.1
Gear oil - grade
We recommend the oils listed in
Chapter
"Oils".
8.5.2
Gear oil - quantity
4.5 litres
8.5.3
Gear oil
– inspection and change
Fig.
"Gear oil change"
Inspect the gear oil
and top up small quantities up to the seal indicator pipe (C) (only top up when the
gearbox is at a standstill):
every 500 operating hours, however at least every 3 months
Change gear oil:
•
After the first 20 operating hours
•
Every 2000 operating hours
The buffer or quenching fluid should be changed at the same time as the gear oil change
Chapter
"Buffer
chamber assembly".
Environmentally friendly disposal
Treat gearbox oils like hazardous wastes and dispose of properly.
