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9.5.8.1
Oil change: sealing, gear and pre-
chamber
Installation and operating instructions Wilo-EMU TR/TRE 216 ... 326-3
Maintenance and repair
Fig. 11: 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
‡
Protective equipment used!
‡
Mixer has been removed, cleaned, and disinfected.
1. Place mixer on a firm work surface in a horizontal position.
CAUTION! Material damage! Do not set the mixer down on the propeller! Always
place the mixer on a platform.
2. Secure the mixer against falling over and slipping!
3. Position a suitable tank to collect the operating fluid.
4. Remove the screw plug from the filler hole:
⇒ 1 = pre-chamber
⇒ 2 = gear chamber
⇒ 3 = sealing chamber
5. Unscrew the screw plug of the drain hole and drain the operating fluid:
NOTICE! Flush the pre-, gear and sealing chamber to drain it completely.
⇒ 4 = pre-chamber
⇒ 5 = gear chamber
⇒ 6 = sealing chamber
6. Check the operating fluid:
⇒ Operating fluid clear: Operating fluid can be reused.
⇒ Operating fluid contaminated (black): fill with new operating fluid.
⇒ Operating fluid milky/cloudy: Water in oil. Minor leakage through the mechanical
seal is normal. If the ratio of oil to water is less than 2:1, the mechanical seal may
be damaged. Change the oil and check again four weeks later. If the oil contains
water again, contact customer service!
⇒ Metal chips in the operating fluid: Contact the customer service!
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6
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en-US
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