Canada - Tires/Wheels - Wheel Balance Adjustment

Bulletin
0425

Issue Date
2001-03-02

Market
Canada

Reference
WT-01-001

Model
SC430

Year Range
2002

Component
WT

Subject:
WHEEL BALANCE ADJUSTMENT PROCEDURE

The 18-inch alloy wheels on 2002 MY SC430 vehicles have a decorative outer wheel flange which does not accept standard Lexus clip-on type wheel weights. To properly adjust wheel balance, stick-on type wheel weights must be used. Some wheel balancers do not have a "hidden weight" function which is used to measure the tire/wheel assembly imbalance in the location of the stick-on type wheel weights. The procedure included in this bulletin can be used to balance SC430 tire/wheel assemblies on wheel balancers that do not have a "hidden weight" function.

APPLICABLE VEHICLES: 2002 model year SC430 vehicles.

REPAIR PROCEDURE:







1. Mount the tire/wheel assembly on the wheel balancer with the outside or decorative wheel flange opposite the wheel balancer arbour.







2. Input the revised wheel dimensions as follows:
3. Select "Wheel Flange" as the wheel weight location (clip-on type wheel weight).
4. Set the Wheel Distance (distance from the inner wheel flange to a reference point on the wheel balancer) as normal.
5. Measure the tire/wheel assembly imbalance.
6. Choose the Conversion Weight for the stick-on type wheel weight using the Conversion Table. The Conversion Weight is listed next to the Imbalance Weight.

HINT:
The stick-on weight conversion is only required for the outside wheel weight location.

7. Apply the stick-on type wheel weight in the position indicated by the wheel balancer.

HINT:
Make sure the wheel is clean and dry prior to applying stick-on type wheel weight.

8. Tap on the appropriate clip-on type wheel weight on the inner wheel flange in the location indicated by the wheel balancer.
9. Re-measure the tire/wheel assembly imbalance to ensure tire/wheel assembly is balanced.







CONVERSION TABLE:

NOTE:
Issue of this Technical Service Bulletin is to ensure that proper repair information is available. IT DOES NOT CONSTITUTE AN AUTHORIZATION FOR REPAIR. Normal provisions of the formal warranty policy, as applicable, will apply.