784C and 785C Off-Highway Trucks Machine Systems Caterpillar

Front Wheel, Bearing and Duo-Cone Seal - Remove

Usage:

785C 1HW

Removal Procedure

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Table 1
Required Tools
Tool	Part Number	Part Description	Qty
A	7H-1680	Brake Release Pump	1
B	5J-0490	Bolt	2
C	439-3941	Link Bracket	2
D	1A-9579	Bolt	2

Start By:

Remove the wheel, the brake, and the suspension cylinder.

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NOTICE

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, PERJ1017, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat^® products. Dispose of all fluids according to local regulations and mandates.

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NOTICE

Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life.

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Illustration 1	g01737093

Remove bolts (1) and bolts (2) to remove manifolds (3).
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Illustration 2 g01737114
Remove O-ring seals (4).
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Illustration 3 g01737113

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Illustration 4 g01737035
Use Tooling (A) to release the parking brake. Do not exceed 4137 kPa (600 psi).
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Illustration 5 g01737115

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Illustration 6 g01737514
Remove bolts (5). Use Tooling (B) to remove cover (6). Remove O-ring seal (7).
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Illustration 7 g01737120

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Illustration 8 g01737153
Remove bolts (8). Use Tooling (B) to remove retainer (9).
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Illustration 9 g01737158
Remove shims (10). Remove bearing cone (11).
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Illustration 10 g01737181
Use Tooling (C) and a suitable lifting device to remove wheel assembly (12). The weight of wheel assembly (12) is approximately 590 kg (1300 lb).
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Illustration 11 g01737333
Remove bearing cup (13).
Use Tooling (C) and a suitable lifting device to turn over wheel assembly (12). The weight of wheel assembly (12) is approximately 590 kg (1300 lb).
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Illustration 12 g01737374
Remove Duo-Cone seal (14).
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Illustration 13 g01737393
Remove bolts (15). Use Tooling (D) to remove retainer (16) and O-ring seal (17).
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Illustration 14 g01737413
Remove bearing cup (18).
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Illustration 15 g01737461
Remove bearing cone (19).
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Illustration 16 g01737493
Remove retainer (20).
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Illustration 17 g06356602
Remove Duo-Cone seal (21) from retainer (20).
Remove seal (22) from retainer (20).