Welcome to DerekWeaver.com. In this video, we will demonstrate the calibration procedure for a W-957 Wheel Balancer. To complete the calibration procedure, you will need a 14”, 15”, or 16” tire and steel wheel assembly balanced and in good condition. Do not use a badly worn tire or a damaged rim for the calibration procedure.
Start by mounting the tire wheel assembly. Choose the proper cone size, place the cone on the shaft with the small side of the cone facing towards the outside of the shaft. Note the cone has a lip on it to hold the wheel. Place the wheel on the lip on the cone and the lip will hold the wheel in place. Then use the quick nut to tighten the wheel. Spin the wheel backwards and the quick nut forward to properly mount the wheel to the wheel balancer. Note the quick nut does not need to be overly tight, just snug.
We will now measure the distance dimension for the tire/wheel assembly. To measure the distance, pull the distance gauge out and touch it to the wheel bead. You can see the distance dimension on the scale; in this case, the distance is 100mm. Now we will enter the distance dimension. To enter the distance dimension, use the DIS+ or DIS- key. Once the entry is complete, you will see the correct dimension here.
Now we will measure the width of the wheel. To measure the width of the wheel, you use the rim caliper. Place the measuring points on the rim caliper on the bead of the wheel. To properly measure the wheel, place the measuring point of the rim caliper on the bead of the rim, as seen here. The pointer on the rim caliper shows the correct measurement; in this case, 5”. Now we will enter the width dimension. To enter the width dimension, use the BR+ or BR- key. Once the entry is complete, you will see the correct dimension here.
Now we need to find the rim diameter. To find the rim diameter, look at the last 2 digits on the tire size, which is located on the sidewall of the tire. We will enter the diameter. To enter the diameter, use the DIA+ or DIA- key. Once the entry is complete, you will see the correct dimension here.
I’m going to spin this wheel to make sure it is still balanced. As you can see, this wheel is still balanced. If you have an unbalanced wheel, go ahead and balance the wheel. It may take several spin cycles to balance the wheel with an uncalibrated machine. Once you have zeroed the wheel, it is balanced and you can proceed with the calibration procedure. Hit and hold the PEOPLE key for 5 seconds. The machine will beep 2 times, the inner window will show ADD and the outer window will show 0.00.
To begin the first spin cycle of the calibration process, simply close the hood. While the wheel is spinning during the first spin cycle, the inner window will say GO, the outer window will sayCAL. When the first spin cycle is complete, the inner window will say ADD and the outer window will say 3.50. After completion of the first spin cycle, open the hood. Rotate the tire/wheel assembly until all 7 of the LED lights to the left of the outer window are lit.
With your wheel in the correct position, get your 3½ ounce test weight and your weight hammer. We will now attach the test weight to the wheel. Be certain the 7 LED lights to the left of the outer window are all lit. With your wheel in that position, hammer the test weight at the12:00position on the outside of the wheel. After you have attached your test weight to the outside of the wheel, close the wheel balancer hood for the final spin cycle. During the final spin cycle, the wheel balancer will show GO in the inner window,CALin the outer window. At the end of the calibration process, the machine will beep 3 times, in the inner window it will say SAV, in the outer window it will say DAT.
The calibration procedure for your W-957 Wheel Balancer is complete. Thank you for using www.DerekWeaver.com for all your automotive equipment needs.
