SEAL-O-RING 3E6767 - Caterpillar

Start By:
Remove the front axle from the machine. Refer to Disassembly and Assembly, "Front Axle (Fixed) - Remove".
Remove the hydrostatic drive motor from the front axle. Refer to Disassembly and Assembly, "Hydrostatic Drive Motor - Remove".
Remove the tire and the rims from the front axle. Refer to Disassembly and Assembly, "Tire and Rim - Remove and Install".
Personal injury or death can result from improper lifting or blocking.When a hoist or jack is used to lift any part or component, stand clear of the area. Be sure the hoist or jack has the correct capacity to lift a component. Install blocks or stands before performance of any work under a heavy component.Approximate weights of the components are shown. Clean all surfaces where parts are to be installed.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Keep all the components for the front axle and the transfer gear case clean at all times. This will prevent contamination of the oil system.
Illustration 1 g00976170
Illustration 2 g00976164
Attach a suitable lifting device to the front axle. The weight of the front axle is approximately 400 kg (882 lb).
Position the front axle in an upright position onto Tooling (A). Use suitable cribbing between the differential housing of the front axle and the Tooling.
Remove the suitable lifting device from the front axle.
Drain the oil from the transfer gear case into a suitable container for storage or disposal. Refer to Operation and Maintenance, "Transfer Gear Oil - Change".
Illustration 3 g00976168
Remove bolts (2) and use a soft mallet in order to separate flange (1) from transfer gear case (3). The bolts are of different lengths. For the purpose of installation, make a note of the positions of the bolts.
Illustration 4 g00976187
Remove O-ring seal (4) from flange (1) .
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Install Tooling (B) and a suitable lifting device into transfer gear case (3). Carefully support the weight of the transfer gear case. The weight of transfer gear case (3) is approximately 26 kg (57 lb).
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Remove bolts (5) that secure transfer gear case (3) to the front axle. The bolts are of different lengths. For the purpose of installation, make a note of the positions of the bolts.
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Use a soft mallet in order to help separate transfer gear case (3) from transfer gear case (6). Use the attached lifting equipment in order to remove transfer gear case (3) from the front axle.Note: Transfer gear case (3) is oriented to transfer gear case (6) with dowels in transfer gear case (3) .
Illustration 8 g01042006
Use the attached lifting equipment in order to place transfer gear case (3) on suitable cribbing on a suitable work bench before removing the lifting equipment and Tooling