Balancing using direct select – COATS 1250 Series Balancer User Manual

Page 18

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Important: Always read and follow the information box instructions.

Balancing Using Direct Select™

A variety of wheel configurations can be balanced

using this wheel balancer. Read through this section, it

will help in determining which mode and options are

best suited for certain wheel assemblies. Refer to

pages 1 - 7 to balance the wheel, for measurement

and weight placement techniques. Refer to pages 8 -

11 for Control Panel functions.

Remember: As with any balancing procedure, first

remove any weights attached to the wheel, inspect

the tire and wheel, and use the most appropriate bal-

ancer mounting method before beginning.

Dynamic Balancing

Choose a dynamic balance to balance a wheel using

two planes for correction. Direct Select™

the weight

option that best fits the available weight locations.

Clip-on Weights -The default; used for most passen-

ger and light truck tire assemblies using the most com-

mon location for corrective weights. Clip-on weights

are placed on the inner and outer rim flanges.

Have the following items handy: appropriate style

clip-on weights.

Direct Select Weight position Clip 1

and Clip 2 (weight locations illuminate).

At these locations place the corrective

weight amount at top-dead-center.

Tape-A-Weights

®

and Hidden Tape-A-Weights

®

-

Used when one or both clip-on weight locations are

not possible or desired. Select the weight location(s)

that best fits the rim configuration.

Have the following items handy: appropriate style

clip-on weights and Tape-A-Weights

®

.

Direct Select Weight position Clip 1 or T1 - Tape and

T2 - Tape, T3 - Tape or Clip 2 (weight locations illumi-

nate). At all locations, except T-2 Tape, place the cor-

rective weight amount at top-dead-center. If the T2 -

Tape weight location is selected, the balancer acti-

vates its Laser Guided Operation™

feature (see page 6).

Static Balancing

Choose a static balance for wheel assemblies that

are not possible to balance dynamically or for narrow

wheels. For example, a motorcycle wheel that has a

small wheel width.

Have the following items handy: an appropriate

wheel assembly mounted on the balancer and a selec-

tion of weights.

When in static mode,

the active Direct Select

Weight location is Clip
1 or T2 - Tape
. Select

the weight location(s)

that best fits the rim configuration.

At the Clip 1 location, place the corrective weight

amount at top-dead-center. If the T2 - Tape weight loca-

tion is selected, the balancer activates its Laser Guided

Operation™

feature (see page 6).

Note: If using a patch weight, refer to Patch Weight

Balance, page 13.

Special Balancing Modes

A special balancing mode is required for the following

methods.

EB (if available, model number supports EB) - An

alternate approach to balancing a tire and wheel

assembly. The technology seeks first to eliminate the

static imbalance in a wheel assembly then, based on

several parameters, calculates the minimum amount

of corrective weight needed to bring dynamic imbal-

ance within acceptable limits.

Balancing wheel assemblies using EB often results in

the application of less corrective weight. In addition to

the potential direct savings in wheel weights, there is

a potential productivity savings due to a reduction in

the number of “ re-spins” necessary to achieve an

acceptable balance condition.

To enable the EB function, press and hold the SHIFT

key and press 0, then press 71 to toggle the EB mode

ON or OFF (software version 2.0.1.6 and forward). The

default is OFF.

For additional information, see Direct Select™

Weight

Placement Location on page 11.

Behind Spoke (T2 - Tape Mode Only) - Used to bal-

ance with two adhesive weights located behind the

spokes in the outer correction plane.

Only use the Direct

Select Weight position
Clip 1 or T1 - Tape and
T2 - Tape (weight loca-

tions illuminate). When

the T2 - Tape weight location is selected, the balancer

activates its Laser Guided Operation™

feature (see

page 6).

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