Coats ProRide Wheel Balancer User Manual download pdf (Page 20)

16 • Important: Always read and follow instructions.

Setting Wheel Dimensions (DIM)

Before a wheel can be balanced, wheel dimensions

must be entered into the computer.

Definition of Dimensions (DIM)

W = Width

The width of the wheel at the rim flanges, measured

with the calipers or width sonar as shown in figure 17.

D = Diameter

The diameter of the wheel as indicated on the tire.

A = Offset

The distance measured from the balancer (“0” on off-

set arm) to inner plane of the rim (inner weight location).

Figure 11 - W, D, and A Tire Dimensions

Note: Only use calipers provided by the wheel bal-

ancer manufacturer because others may not be the

same.

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.

A2 = Offset

The distance measured from the balancer (“0” on

offset arm) to outer plane of the rim (outer weight loca-

tion). Used only for adhesive weight location.

D2 = Diameter

The diameter as measured at the A2 weight location.

Used only for adhesive weight location.

Figure 12 - A2 and D2 Tire Dimensions

Wheel Data Entry

1. To automatically enter A & D dimensions, pull the

offset arm out and up against the wheel at the appropri-

ate weight placement location; hold it still and wait for

the deep or the display to change.

Figure 13- Dimensions Screen

Note: When the offset arm is pulled out from home

position, the dimensions screen is automatically

selected.

Note: If the acoustic signal is enabled, the acquisition

of the dimensions is accompanied by a BEEP.

Note: When the computer acquires the wheel dimen-

sions it is indicated by the correction weight symbol,

which changes from blue to red.

Automatic A & D Measurement Methods:

• For Clip 1 data entry, move the arm from home posi-

tion and place the offset arm up against the wheel

flange in either position 1 or 2, as shown in figure 14.

Figure 14 - Automatic A & D Measurement At Clip 1 Weight

Location

Pos A

Wheel Flange Cut

Away - Inboard

Location

Pos 1

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 33 34

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Coats ProRide Wheel Balancer User Manual Page 20

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