REAR PLANETARY GEAR INSPECTION

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Radial Needle Bearing Inspection (in Pinion Gear)

1.  Place the rear planetary gear with the front internal gear side pointing upward on a workbench.

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2.  Rotate the pinion gears by hand and verify that there is no malfunction in the radial needle bearing in the pinion gear (rotation sticking).

Caution

•  Verify all of the pinion gears.

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•  If there is a malfunction, replace the rear planetary gear with a new one.

Thrust Needle Bearing Inspection

1.  Place the rear planetary gear with the front internal gear side pointing upward on a workbench.

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2.  Assemble the rear sun gear to the rear planetary gear.

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3.  With a load applied by hand to the rear sun gear, rotate the rear sun gear and verify that there is no malfunction in the thrust needle bearing (rotation sticking).

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•  If there is a malfunction, replace the rear planetary gear with a new one.

4.  Remove the rear sun gear.

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Pinion Washer Inspection

Pinion washer visual inspection

1.  Visually verify that all of the following washers are between the pinion gear and planetary carrier for one pinion gear.

Caution

•  Verify all of the pinion gears.

―  Copper washer (outer side): 2

―  Iron washer (inner side): 2

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•  Even if one of the washers is damaged, replace the rear planetary gear with a new one.

Pinion washer wear inspection

1.  Place the rear planetary gear with the front internal gear side pointing downward on a workbench.

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2.  Measure the gap between the pinion washer and planetary carrier.

Caution

•  Measure all of the pinion gears.

Note

•  Recommended measuring instrument: Thickness gauge

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•  If it is the maximum specification or more, replace the rear planetary gear with a new one.