6 changing oil in gearbox – Watson-Marlow DuCoNite 25 User Manual
Page 32

MAINTENANCE
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4.
Keep on pouring until the lubricant level has
risen at least until just above the bottom level
line in the inspection window. Position the
breather plug (A) and tighten it firmly.
7.6
Changing oil in gearbox
1.
Isolate the pump from the electrical supply.
2.
Remove plug (A) and let the oil run out of the
gearbox.
3.
The plug (A) is magnetically loaded. In this way
metal particles in the oil are pulled to the plug.
Clean the plug and remove any metal particles
if necessary. Check that the sealing ring is not
damaged and replace it if necessary. Place the
plug back in the gearbox and tighten it firmly.
4.
Remove level plug (B) and filling plug (C) and
position a funnel in the hole and fill the gearbox
with oil until the oil just comes out of the level
plug hole (B). Wait shortly to let out any
entrapped air. Place plug (B) and filling plug (C)
back and tighten them firmly.
5.
Switch on the electrical supply to the pump.
For the required quantity of lubricant, refer
to §
.
For the required lubricant, refer to §