Tooth Contact

Before inspection and adjustment, drain gear oil.

1. Remove carrier cover. Refer to "DISASSEMBLY ".
2. Apply red lead to drive gear.
   CAUTION: Apply red lead to both the faces of 3 to 4 gears at 4 locations evenly spaced on drive gear.
   Fig 1: Applying Red Lead To Drive Gear

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3. Rotate drive gear back and forth several times, check drive pinion gear to drive gear tooth contact.
   CAUTION: Check tooth contact on drive side and reverse side.
   Fig 2: Identifying Drive Gear Reverse And Driver Side

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   Fig 3: Tooth Contact Pattern Chart

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4. If tooth contact is improperly adjusted, follow the procedure below to adjust the pinion height [dimension (X)].
   Fig 4: Identifying Pinion Height

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   • If the tooth contact is near the face (face contact), or near the heel (heel contact), thicken pinion height adjusting washers to move drive pinion closer to drive gear.

     For selecting adjusting washer, refer to the latest parts information.

     Fig 5: Moving Drive Pinion Closer To Drive Gear (Face And Heel Contact)

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   • If the tooth contact is near the flank (flank contact), or near the toe (toe contact), thin pinion height adjusting washers to move drive pinion farther from drive gear.

     For selecting adjusting washer, refer to the latest parts information.

     Fig 6: Moving Drive Pinion Farther From Drive Gear (Flank And Toe Contact)

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