How do you calibrate sun CWB1855 wheel balancer?

To calibrate the Sun CWB1855 wheel balancer, start by ensuring the machine is on a level surface and powered on. Then, select the calibration mode from the menu, and follow the on-screen instructions, which typically involve placing a standard weight on the spindle and confirming the readings. After the initial calibration, remove the weight and check that the machine returns to zero; if not, repeat the calibration process until accurate. Finally, verify the balance with a test wheel to ensure proper functionality.