9.5.7.1
Oil change: sealing, gear and pre-
chamber
Installation and operating instructions Wilo-EMU TR/TRE 212 ... 326-3
Maintenance and repair
Fig. 12: Oil change
1
Pre-chamber fill opening
2
Gear chamber fill opening
3
Sealing chamber fill opening
4
Pre-chamber drain plug
5
Gear chamber drain plug
6
Sealing chamber drain plug
‡
Mixer is not installed.
‡
Mixer is not connected to the power supply.
‡
Protective equipment is being used!
1. Position the mixer horizontally on a firm surface.
WARNING! Risk of hands being crushed. Make sure the mixer cannot fall over or slip
out of position!
CAUTION! Do not place the mixer on the propeller! Always place the mixer on a plat-
form.
2. Place a suitable tank to collect the operating fluid.
3. Unscrew the screw plug of the fill opening:
1 = pre-chamber
2 = gear chamber
3 = sealing chamber
4. Unscrew the drain hole screw plug and drain operating fluid:
4 = pre-chamber
5 = gear chamber
6 = sealing chamber
NOTICE! Vacuum the oil or rinse the sealing chamber to fully drain the system.
5. Check the operating fluid: Notify customer service if the operating fluid contains metal
filings!
6. Dispose of operating fluids according to the local regulations!
7. Clean the drain hole screw plug, replace the seal ring and screw it back in. Max. tight-
ening torque: 8 Nm (5.9 ft·lb)!
8. Pour the operating fluid through the fill opening.
⇒ Comply with the specifications for the operating fluid type and quantity!
2
1
3
6
5
en-US
4
39