TRANSFER ASSEMBLY INSPECTION


  1. INSPECT PRELOAD


    1. A01ELWUE01
      Text in Illustration
      *1 No. 2 Transfer Ring Gear Mounting Case Washer

      Using SST and a torque wrench, measure the preload of the backlash between the driven pinion and ring gear.

      SST
      09326-20011
      Preload (at Starting)
      Item Preload
      without SST 0.56 to 0.94 N*m (6 to 9 kgf*cm, 5 to 8 in.*lbf)
      with SST 0.40 to 0.67 N*m (4 to 6 kgf*cm, 4 to 5 in.*lbf)

      Tech Tips


      • Use a torque wrench with a fulcrum length of 130 mm (5.12 in.).

      • Turn the driven pinion counterclockwise and clockwise several times.

      • If the preload is too high, replace the transfer pinion bearing spacer with a new one.

      • If the preload is too low, tighten the gear nut further by turning it 5 to 10 degrees at a time, and then measure the preload again. Repeat this operation until the specified preload is obtained.

      • If the preload remains too low even after the gear nut has been tightened to a level in excess of the specified torque, loosen the gear nut and check its threads and those of the driven pinion for damage.

      • If there is no damage, replace the transfer pinion bearing spacer with a new one. Apply hypoid gear oil to the threads and repeat the steps above.

      • Write down the preload for use as a reference during the total preload measurement.

    2. Using SST and a torque wrench, measure the total preload.

      SST
      09326-20011
      Preload (at Starting)
      Item Preload
      without SST 0.35 to 0.53 N*m (4 to 5 kgf*cm, 3 to 4 in.*lbf) + driven pinion preload
      with SST 0.25 to 0.38 N*m (3 to 4 kgf*cm, 3 to 3.3 in.*lbf) + driven pinion preload

      Tech Tips


      • Use a torque wrench with a fulcrum length of 130 mm (5.12 in.).

      • Turn the driven pinion counterclockwise and clockwise several times.

      A01ELHOE02

      If the preload is outside the specified range, replace the No. 2 transfer ring gear mounting case washer with one that is thicker or thinner as necessary and recheck.

      Washer Thickness: mm (in.)
      Mark Thickness Mark Thickness
      G7 2.47 (0.0972) M7 3.47 (0.1366)
      G8 2.49 (0.0980) M8 3.49 (0.1374)
      G9 2.51 (0.0988) M9 3.51 (0.1382)
      H0 2.53 (0.0996) N0 3.53 (0.1390)
      H1 2.55 (0.1004) N1 3.55 (0.1398)
      H2 2.57 (0.1012) N2 3.57 (0.1406)
      H3 2.59 (0.1020) N3 3.59 (0.1413)
      H4 2.61 (0.1028) N4 3.61 (0.1421)
      H5 2.63 (0.1035) N5 3.63 (0.1429)
      H6 2.65 (0.1043) N6 3.65 (0.1437)
      H7 2.67 (0.1051) N7 3.67 (0.1445)
      H8 2.69 (0.1059) N8 3.69 (0.1453)
      H9 2.71 (0.1067) N9 3.71 (0.1461)
      J0 2.73 (0.1075) P0 3.73 (0.1469)
      J1 2.75 (0.1083) P1 3.75 (0.1476)
      J2 2.77 (0.1091) P2 3.77 (0.1484)
      J3 2.79 (0.1098) P3 3.79 (0.1492)
      J4 2.81 (0.1106) P4 3.81 (0.1500)
      J5 2.83 (0.1114) P5 3.83 (0.1508)
      J6 2.85 (0.1122) P6 3.85 (0.1516)
      J7 2.87 (0.1130) P7 3.87 (0.1524)
      J8 2.89 (0.1138) P8 3.89 (0.1531)
      J9 2.91 (0.1146) P9 3.91 (0.1539)
      K0 2.93 (0.1154) Q0 3.93 (0.1547)
      K1 2.95 (0.1161) Q1 3.95 (0.1555)
      K2 2.97 (0.1169) Q2 3.97 (0.1563)
      K3 2.99 (0.1177) Q3 3.99 (0.1571)
      K4 3.01 (0.1185) Q4 4.01 (0.1579)
      K5 3.03 (0.1193) Q5 4.03 (0.1587)
      K6 3.05 (0.1201) Q6 4.05 (0.1594)
      K7 3.07 (0.1209) Q7 4.07 (0.1602)
      K8 3.09 (0.1217) Q8 4.09 (0.1610)
      K9 3.11 (0.1224) Q9 4.11 (0.1618)
      L0 3.13 (0.1232) R0 4.13 (0.1626)
      L1 3.15 (0.1240) R1 4.15 (0.1634)
      L2 3.17 (0.1248) R2 4.17 (0.1642)
      L3 3.19 (0.1256) R3 4.19 (0.1650)
      L4 3.21 (0.1264) R4 4.21 (0.1657)
      L5 3.23 (0.1272) R5 4.23 (0.1665)
      L6 3.25 (0.1280) R6 4.25 (0.1673)
      L7 3.27 (0.1287) R7 4.27 (0.1681)
      L8 3.29 (0.1295) R8 4.29 (0.1689)
      L9 3.31 (0.1303) R9 4.31 (0.1697)
      M0 3.33 (0.1311) S0 4.33 (0.1705)
      M1 3.35 (0.1319) S1 4.35 (0.1713)
      M2 3.37 (0.1327) S2 4.37 (0.1720)
      M3 3.39 (0.1335) S3 4.39 (0.1728)
      M4 3.41 (0.1343) S4 4.41 (0.1736)
      M5 3.43 (0.1350) S5 4.43 (0.1744)
      M6 3.45 (0.1358) S6 4.45 (0.1752)

  2. INSPECT RING GEAR BACKLASH


    1. A01ELNO

      Using a dial indicator, check the backlash of the ring gear.

      Backlash
      0.14 to 0.25 mm (0.00551 to 0.00984 in.)

      If the backlash is not within the specification, adjust the side bearing preload or repair as necessary.

      Note

      Check at least 3 positions on the circumference of the ring gear.

  3. INSPECT TOOTH CONTACT BETWEEN RING GEAR AND DRIVE PINION


    1. A01ELRJ

      Coat 3 or 4 teeth at 4 different positions on the ring gear with Prussian blue.

    2. Turn the driven pinion to rotate the ring gear 10 times or more clockwise and 10 times or more counterclockwise.

    3. Rotate the ring gear to inspect the tooth pattern.

      A01EIPYE07

    4. If the tooth contact pattern is not correct, select a new transfer output shaft washer that is thicker or thinner as necessary and recheck.

  4. INSPECT RUNOUT OF RING GEAR


    1. A01EM7W

      Place the transfer ring gear mounting case on the V-blocks.

    2. Using a dial indicator, check the runout of the ring gear.

      Maximum runout
      0.06 mm (0.00236 in.)

      Tech Tips

      If the runout is more than maximum, replace the ring gear with a new one.

  5. INSPECT TRANSFER RING GEAR MOUNTING CASE


    1. A01ELGI

      Place the transfer ring gear mounting case on the V-blocks.

    2. Using a dial indicator, check the runout of the transfer ring gear mounting case.

      Maximum runout
      0.04 mm (0.00157 in.)

      Tech Tips

      If the runout is more than maximum, replace the transfer ring gear mounting case with a new one.