REMOVAL

1.Remove the front diffuser. Refer to Exploded View.

2.Remove the sub-muffler. Refer to Exploded View.

3.Remove the heat insulator.

4.Separate the front propeller shaft assembly. Refer to Exploded View.

5.Drain the transmission oil from the transmission assembly. Refer to Draining.

6.Install the flange wrench (commercial service tool) (A) to the companion flange of transfer, and then remove the mounting nut.

7.Remove companion flange using a puller (commercial service tool) (A).
■ CAUTION ■
Never damage the companion flange.

8.Remove the front oil seal using the puller [SST: KV381054S0 (J-34286)] (A).
■ CAUTION ■
Never damage case.

INSTALLATION
Note the following, and install in the reverse order of removal.
■ CAUTION ■
Apply anti-corrosion oil to threads and seat surfaces when installing the companion flange mounting nut.

- Drive and install the front oil seal to the case end surface using a drift.

  A | : Drift [SST: ST30720000 (J-25405)]
  B | : Drift [SST: KV40104830 (　—　)]

  ■ CAUTION ■
  - Never reuse oil seals.
  - Check that the grease is applied to the lip and all inner walls of oil seal. Apply multi-purpose grease or equivalent if the grease is not applied.
  - Never use including extreme pressure additives.
  - Never incline the oil seal during installation.
  - Never allow oil and dust, etc. to get on the oil seal press-fitting surface.
  - Never damage the oil seal.
  - Never damage the front drive shaft when installing the oil seal.
  NOTE：
  For OK/NG judgment of oil seal installation, measure the oil seal press-fitting depth (on 2 locations or more) and check if they exceed the dimension “A”. Always calculate the dimension “A” before measurement. Dimension “A” can be calculated by the formula below.

  A = B − C − 0.5 mm (0.020 in)
  A | : Oil seal press-fitting depth
  B | : Case depth
  C | : Oil seal flange thickness

- Fill with the transmission oil to the transmission assembly after installation. Refer to Filling.