1. Turn on the emergency stop knob.

2. Lift the abrasion head and install the wool felt in to groove.

3. Install the sample and fix it on the fixture.

4. According to standard requirement, stretch the sampleto a certain ratio by adjusting the screw.

5. Put the abrasion head smoothly just above the sample. Make sure the abrasion hear parallel tothe sample and then lock the hand screw.

(The weight above abrasion head can be removed or installed according to test requirement.)

6. Select 'English', click 'Set' enter parameter setting interface. Set the test time (Timer)or times (Counter) and speed.Then click 'Return' to back to the leather rub test interface.

7. Click 'Zero' to clear the data before leather abrasion test and click 'Start' to test.

("Micro": When you want to return the fixture to original position, please click it.)

8. When the set value is reached, the leather abrasion tester will stop automatically.

9. Remove the tested wool felt and sample, visually assess the changein color of the sample and the staining of the felt by using grey scales.