Wilo T 17 E3 Series - Page 25

Installation and electrical connection en
Installation and operating instructions Wilo Motor T 12 ... 72 + EMU FA, Rexa SUPRA, Rexa SOLID 25
Motors T20, T20.1, T24
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T 20 T 24T 20.1
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Fig.9: Sealing chamber: Check oil
+ Add the oil to the sealing chamber
- Drain the oil in the sealing chamber
‡ Pump is not installed.
‡ Pump is not connected to the mains.
‡ Protective equipment has been put on!
1. Place the pump upright on a firm surface.WARNING!Risk of hands being crushed.
Ensure that the pump cannot fall over or slip away!
2. Place a suitable tank to collect the operating fluid.
3. Unscrew the screw plug (+).
4. Unscrew screw plug (-) and drain the operating fluid. If a shut-off ball cock is in-
stalled on the outlet opening, open the shut-off ball cock.
5. Check the operating fluid:
⇒ If the operating fluid is clear, reuse operating fluid.
⇒ If the operating fluid is contaminated (black), fill with new operating fluid. Dis-
pose of operating fluid in accordance with the local regulations!
⇒ Notify customer service if the operating fluid contains swarf!
6. If a shut-off ball cock is installed on the outlet opening, close the shut-off ball
cock.
7. Clean the screw plug (-), replace the seal ring and screw it back in. Max. tightening
torque: 8Nm (5.9ft·lb)!
8. Pour the new operating fluid in through the hole for the screw plug (+).
⇒ Comply with the specifications for operating fluid type and quantity! When re-
cycling the operating fluid, check the quantity and if required adjust it!
9. Clean the screw plug (+), replace the seal ring and screw it back in. Max. tightening
torque: 8Nm (5.9ft·lb)!