Coats 6450 3D User Manual download pdf (Page 13)

Important: Always read and follow the information box instructions. • 7

Setting Wheel Dimensions (DIM)

Before a wheel can be balanced, wheel dimensions

must be entered into the computer.

Definition of Dimensions (DIM)

A = Offset The distance measured from the bal-

ancer (“0” on offset arm) to inner plane

of the rim (inner weight location).

W = Width The width of the wheel at the rim

flanges, measured with the calipers as

shown in figure 13.

Note: Only use calipers provided by the wheel bal-

ancer manufacturer because others may not be the

same.

D = Diameter The diameter of the wheel as indi-

cated on the tire.

Note: A thick flange, on some aluminum wheels, can

effect the measured diameter. For example, a 16-inch

rim can have a measured diameter of 15.5-inches.

Figure 12A - A, W, and D Tire Dimensions

A2 = Offset The distance measured from the bal-

ancer (“0” on offset arm) to outer plane

of the rim (outer weight location). Used

only in T2-Tape mode.

D2 = Diameter The diameter as measured at the

A2 weight location. Used only in

T2-Tape mode.

Figure 12B - A2 and D2 Tire Dimensions

Basic Wheel Data Entry

1. Select the Clip 1 or T1 -Tape weight location and

the T3 - Tape or Clip 2 weight location.

2. Position offset arm at clip weight location; wait for

BEEP (A & D enters automatically).

3. Return offset arm to home position.

4. Use caliper and measure rim width.

5. Enter caliper measurement into W on balancer.

6. Lower hood and spin wheel.

Entering Wheel Dimensions Manually

Information entered into the balancer software for A,

W, and D can be changed anytime during a balancing

procedure by entering the measurements manually. The

balancer will recalculate weights and positions based on

the new measurements.

Wheel Offset - A

1. Press the A (wheel offset) key.

2. Position offset arm at weight location on wheel and

read the number on the offset arm gauge, at the cabinet

(this is the correct offset A DIM).

3. Use the keypad to enter the measurement.

Wheel Diameter - D

1. Press the D (wheel diameter) key.

2. Inspect mounted tire sidewall to determine the

exact diameter that is printed on the tire.

3. Use the keypad to enter the D (Diameter DIM) to

match the tire sidewall size.

Note: Auto entry is the preferred method for enter-

ing A2 and D2. However, to manually enter A2, press

SHIFT A or D2, press SHIFT D.

Wheel Width - W

1. Press the W (wheel width) key.

2. Use the plastic calipers provided with the wheel

balancer to measure the wheel width.

Figure 13 - Caliper Placement On Wheel

3. Use the keypad to enter the W (Width DIM) to

match the measured caliper width of the mounted rim.

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Coats 6450 3D User Manual Page 13

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