MUFFLER A 4W3875 - Caterpillar

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Secure impeller (7) with Tool (A). Attach Tool (B) to the shaft.
Use a suitable driver to rotate Tool (B) counterclockwise. Remove impeller (7) .
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Personal injury can result from being struck by parts propelled by a released spring force.Make sure to wear all necessary protective equipment.Follow the recommended procedure and use all recommended tooling to release the spring force.
Use Tool (C) to remove snap ring (8) from the shaft.
Remove washer (9) and remove spring (10) from the shaft.
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Remove rotating seal (11) .
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Remove two bolts (12) .
Remove seal plate (13) .
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Remove non-rotating seal (14) from seal plate (13) .
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Remove slinger donut (15) .
Inspect and replace shaft sleeve (16) if necessary.Note: To remove shaft sleeve (16), gently heat the shaft sleeve to release the adhesive securing the sleeve to the shaft.
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Remove four bolts (17). Remove motor adapter (18) .
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Remove seal (19) from motor adapter (18) .
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Remove shaft (20) through the motor mount end of shaft housing (2) .
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Remove shaft seal (21) from shaft housing (2) .
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Use Tool (D) to remove snap ring (22) from the motor end of shaft (20) .
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Use a suitable press and tooling in order to remove race and bearing cone (23) from the motor end of shaft (20).
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Use a suitable press and tooling in order to remove race and bearing cone (24) from the motor end of shaft (20).