COATS 1055 Balancer - Manual (Page 16)

Wheel Data Entry
Before a wheel can be balanced, the size of the wheel must be entered into the computer. The user enters the
data either automatically or manually.
Wheel Offset - A
This is the distance between the edge of the balancer and the inner
edge of the wheel.
1. For Automatic Entry - Pull the distance gauge out from
the side of the balancer. Rotate it until the handle end of the
gauge contacts the inner wheel flange. Hold the gauge
against the wheel until the balancer BEEPS to indicate it has accepted
the measurement, which is displayed above the wheel offset key.
Note: When entering A data automatically, D (wheel diameter) is
also determined and entered.
2. For Manual Entry - Press the wheel offset key. Pull the distance
gauge out in the same manner as outlined for automatic entry. Hold
the gauge against the wheel flange and read the measurement on the
gauge. Use the keypad to enter the measurement. For example, if the
last large number (inch indicator) visible is 6, and the last small num-
ber (fraction of an inch) visible is 4, press 6 then 4 on the keypad to
enter 6.4 inches.
Wheel Width - W
This is the width of the wheel measured with the calipers at the rim
flanges.
1. Press the wheel width key. If offset and diameter are entered
automatically on the 1050, the balancer will activate the width key
after the acceptance BEEP.
2. Open the calipers wide enough to reach around the tire. Close
the calipers so both tips contact the rim flanges. Read the rim width
on the calipers.
3. Enter the measurement using the keypad. It is now shown in the
display above the wheel width key.
Wheel Diameter - D
This is the diameter of the wheel at the weight location.
Automatic diameter entry reads to 3 decimal places inter-
nally and rounds to 0.10-inch values. It is not necessary to
convert metric diameter measurements to inches. For man-
ual entry, enter 15.4 for 390 metric wheels, and 15.7 for 400 wheels.
The displayed value represents the diameter for weight placement
and is not necessarily representative of the actual wheel diameter. A
14-inch wheel may display 13.6 to 14.3 depending on rim lip configu-
ration and the offset used by the computer.
1. For Automatic Entry - If the wheel offset measurement
was entered automatically, the 1050 has also calculated and
entered the wheel diameter and displayed it above the
wheel diameter key.
2. For Manual Entry - Press the wheel diameter key. Locate the
tire size on the tire sidewall and determine the wheel diameter. Use
the keypad to enter the measurement. It is now displayed above the
wheel diameter key. The computer calculates the actual weight place-
ment diameter.
1025
1050
1055
1025
1050
1055
1025
1050
1055
Direct Drive
10 • COATS 950/1025/1050/1055 Wheel Balancer
Figure 14 - Measuring Wheel Offset with Distance
Gauge
Touch Second
Surface of Rim
Offset Measurement Last
Legible Number
Offset
Figure 15 - Measuring Wheel Width with the
Calipers
Figure 16 - Wheel Diameter
Steel
Wheels
Alloy
Wheels