9 36 BRAKES AND WHEELS V 7 Refinish rotor on disc brake lathe if scoring is deeper than 0 015 inch or if runout thickness varia tion and hub to bore runout exceed specifications in g gg QJ ER U Rotor Measurement wma cevvremmz 0 C NOTE Rotor finish should be 20 to 60 micro irwhes and not be directional After turning the rotor in a A dilsc broke lathe flat sanding discs should be used os a final step in the re Wishing procedure to promkie the desired microjirtish and cross hatch pattern on the V rotor surjiwe fig 9 42 m 1 J V csnrenunz mourn on mtg szmwc cues E WHEN Mnsumno A Azssv 4 Vw G Flq 9 41 Elnnklng ub Ia Inn I un ut t f ti t mis IMM Mlnlshlnq Z Co ctsvm FIl I l r 1IM Il2r I I llP I III Resurface rotor on brake lathe using flat sanding Hu 9 m In ll discs only if scoring is light 0 015 inch deep or less if rotor surfaces have heavy rust and scale and only if Replace the rotor if refinishing will cause the rotor rotor meets all measurement specifications listed un to fall below the minimum thickness specification der Rotor Measurement after refinishing of 1 215 inches Pm hp Tim t 9 37 Whats t t t t 9 36 w EE When balancing with the wheels on a vehicle equipped with Quadra Trac disconnect the front w E g or rear propeller shafts as required Wheel balancing with the wheel on the vehicle is Wlllll Bllflllj SON recommended in all cases except ssfollows Ad t t f the wh 1 begun is critical because us me ee If the vehicle is equipped with 3 Tm Lqk xl it estdblishe tlie running clearantisof the wheel bear mmm WMS M f M me v tm Wheel ttm tdgtttmtttt that tt ttt tight prt When balancing with the wheel on a vehicle loads the bearings and causes them to run hot Loose equipped with the Model 20 transfer case shift wheel bearings permit the drum hub to shift its posi the transmission and transfer case into the tion on the bearings as thrust load vary with accelera neutral position tion braking and cornering