Einleitung
If your Alphacool Eispumpe VPP755 V.1 or V.2 makes a grinding sound during operation, stops and starts randomly or doesn't seem to flow liquid, use this guide to replace the impeller thrust washers.
The thrust washers provide a low friction surface for the impeller to spin against during operation. Damaged or defective thrust washers can cause the pump to omit a loud grinding noise and negatively affect its performance.
Step 6 requires you to carefully remove the keeper washer and is the most difficult task for this guide as the keeper can break if removed too aggressively.
Before beginning, make sure the pump is disconnected from any power source.
Werkzeuge
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Gently wiggle the 2.5 mm flat head screw driver in between the divide of the keeper washer.
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Slowly raise one side of the keeper washer above the top of the ceramic shaft.
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Place the flat head screw driver under the opposite side of the keeper washer and pop it off the shaft.
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Remove the white keeper washer and the black upper thrust washer.
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Seperate the impeller from the pump body.
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Place the keeper washer on the tip of the ceramic shaft.
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Use the flat head screw driver and the hex wrench to push both sides of the keeper washer down until it reseats itself on the shaft.
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