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- The float and outer sleeve should be cleaned in time after each test, and regularly checked for indentation, wear or other damage.
- The viscometer in normal use does not need to be refueled or lubricated.
- Remove the outer sleeve of the float during transportation to avoid bending of the float shaft and damage to the outer sleeve, and regularly test the bearing of the float shaft.
- In the absence of samples, operate the instrument at 3rpm or 6rpm to observe the operating status of the float and the outer sleeve, and there should be no fluctuations exceeding ±1. Insensitive float shaft bearings should be replaced in time.