BRACKET 8S4300 - Caterpillar

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Remove bolts (12) and retainer (13) .
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Remove shim pack (14) .
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Install Tooling (B) in the hole of hub (15). Repeat this step for the two remaining holes, as shown.
Attach a hoist to the lifting slings. Carefully remove hub (15) and gear (16) as a unit. The combined weight of the hub and of the gear is 320 kg (705 lb).
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Place the hub and the gear on wood blocks so that bearing cone (18) is facing upward.
Remove six bolts (17) that hold ring (19) in the groove of gear (16) .
Remove ring (19) from gear (16) .
Illustration 17 g00370583
Install Tooling (B) in the holes of hub (15) again, as shown.
Attach a hoist to the lifting slings. Carefully remove hub (15) from gear (16). The weight of the hub is 193 kg (425 lb).Note: The weight of the gear is 127 kg (280 lb).
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Typical Example
To remove bearing cone (18) from hub (15), turn the hub onto the opposite side so that the bearing cone is facing downward, as shown.Note: Do not apply heat directly to the hub. Excessive heat may reduce the service life of the hub.
Use a torch to heat the bearing cone evenly around the circumference. Continue to heat the bearing cone until the bearing cone falls from the hub.
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Secure Tooling (C) to wheel (4). Attach a hoist to Tooling (C) .
Use the hoist to carefully remove wheel (4) from spindle (20). The weight of the wheel is 430 kg (950 lb).
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Use Tooling (C) to lower wheel (4) to a horizontal position, as shown.
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Remove Duo-Cone seal (23) .
Use a hammer and a punch to remove bearing cups (21) and (22) .
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Typical Example
Remove Duo-Cone seal (24) from spindle (20) .
To remove bearing cone (25) from spindle (20), turn the spindle onto the opposite side so that the bearing cone is facing downward, as shown.Note: Do not apply heat directly to the spindle. Excessive heat may reduce the service life of the spindle.
Use a torch to heat the bearing cone evenly around the circumference. Continue to heat the bearing cone until the bearing cone falls from the spindle.