Check the devices that are to be used, and that viscosity Tester is available or not.2. to estimate the volume of oil the gears to be up close to the guide of a test.3. weighing of vitro before pouring oil gear to save the value (s)4. pour oil gear into the tube, and then weigh.5. bring a glass tube into the water bath test, starting at 40 degrees Celsius.6. wait for the temperature of the oil and water into the fixed conditions (Steady State) is approximately 15-30 minutes.7. use hose plug into small tubes, which are opposite each other with pipes that we put the gear oil in the first step. Then it started to open to the vacuum tube butt oil up above the level of minimal limits on the.8. then leave the oil to flow down to the level of the top limit, the timer starts immediately. After that. When the oil is lower down until the bottom tick so to stop time.9. put the value of the time catch. Record results and calculate the value in the next step.10. repeat verse 3-9 again to bring up the average for the time of highest precision.11. when the route has been reached, the temperature change in the water bath is 50 and 60 degrees to do the experiment again.
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