BRACKET 3V0778 - Caterpillar

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Remove rear seal (16) and bearing cone (17) through the bearing carrier bore.
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Remove bearing cups (18) from the bearing carrier bore. Note: Do not damage the bearing bores when you remove bearing cups (18).Frost Plug and Main Shaft O-Ring − Remove
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Remove internal O-Ring (1). This can be done from either side of the main shaft. O-Ring (1) is seated inside the main shaft.
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Drive out frost plug (2). Remove bushing (3), if necessary. Note: Unless the main shaft has been damaged, it is not necessary to remove the main shaft.
If there is scoring on the inside of the bushing or if there is excessive play between the through shaft and the bushing, remove the rear bushing from the main shaft. Note: Some fans do not have main shaft extensions. Rather, the fans have a second bushing in the front of the main shaft.Note: Removal and installation of the bushings can cause damage to the main shaft bushing bores.Note: Replacement bushings for the rear side of the main shaft will not have a slot. The slot must be cut out after installing the new bushing.
Remove the bushing from the main shaft extension, if necessary. Hub − Disassemble
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Remove capscrews (1) from collars (2).
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Remove blade mounting shafts (3) and nylon washers (4). Hold the collar and the bearing when you remove the shafts and washers.
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Remove collars (2) and bearings (5).
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Remove O-Rings (6) from the hub inserts. Note: Carefully remove O-Rings (6) so that damage to the O-Ring grooves does not occur.
Inspect the O-Ring grooves for pitting, rust or other surface defects that may cause leakage. Actuator Spherical Bearings and Control Shaft Bushings − Remove
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Remove spherical bearings (1) from actuator clevis (2).
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Remove grease fittings (3) from the control shaft bushing blocks.
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Remove outer bushing seal (4) from alignment plate (5).
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Remove bushing (6) and rear seal (7). Note: There are other bushings and seals that may require replacement. Removal of the control shaft bushings is only required if there is scoring on the inside of the bushings or there is excessive play between the control shaft and the bushings.