Wheel - Runout Measurement Procedure Revision
NO: 22-05-95 Rev. AGROUP: Wheels & Tires
DATE: Jun. 30, 1995
SUBJECT:
Wheel Runout Measurement Procedures
THIS BULLETIN SUPERSEDES TECHNICAL SERVICE BULLETIN 22-05-95 DATED MAY 26, 1995 WHICH SHOULD BE REMOVED FROM YOUR FILES. THE LABOR OPERATION NUMBER FOR CHECK WHEEL RUNOUT, EACH ADDITIONAL WHEEL HAS BEEN CHANGED.
MODELS:
1994 - 1995 (AB) Ram Van/Wagon
1994 - 1995 (AN) Dakota
1994 - 1995 (BR) Ram Truck
NOTE:
THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH FULL FACE WHEELS (RAM TRUCK SALES CODE - WDB OR WDC, RAM VAN/WAGON SALES CODE - WJA OR WJM, DAKOTA SALES CODE - WJ2), OR ALUMINUM WHEELS (RAM VAN/TRUCK SALES CODE - WJC, DAKOTA SALES CODE - WJL).
DISCUSSION:
For both aluminum and full face steel wheels, the tire must be dismounted to measure radial and lateral runout at the tire bead seats. This is necessary because the gauge cannot reach the bead seat for accurate measurement with the tire installed.
Wheels have two types of measurable runout as defined below:
^ Radial Runout - Radial Runout is the measurement between the high and low points on each individual bead seat (Points A & B in Figure 1). This measurement is taken perpendicular to the rim at the tire bead seats.
^ Lateral Runout - Lateral Runout is the measurement between the high and low points on each individual bead seat (Points C & D in Figure 1). This measurement is perpendicular to the wheel face at the tire bead seats.
Measurement Of Wheel Runout:
NOTE:
EXCLUDE WELD SPATTER INFLUENCES ON RUNOUT MEASUREMENT ON FULL FACE WHEELS WHENEVER POSSIBLE.
Reference chart below for Radial and Lateral guidelines:
References: 1994 or 1995 Ram Truck Service Manual - Group 22 Wheels &Tires Technical Service Bulletin 22-09-94.
Maximum Allowable Wheel Run Out Specifications:
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Check Wheel Runout. One Wheel
Labor Operation No: 22-40-01-90 0.5 Hrs.
Check Wheel Runout. Each Additional Wheel
**22-40-02-99 0.5 Hrs. **
FAILURE CODE: XX - Service Adjustment