994F Wheel Loader Power Train Parking Brake - Assemble Caterpillar

Assembly Procedure

Note: Cleanliness is an important factor. Before assembly, thoroughly clean all parts in cleaning fluid. Allow the parts to air dry. Do not use wiping cloths or rags to dry parts. Lint may be deposited on the parts which may cause trouble. Inspect all parts. If any parts are worn or damaged, use new parts for replacement. Dirt and other contaminants can damage the precision component. Perform assembly procedures on a clean work surface. Keep components covered and protected at all times.

Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.

Note: Lubricate all seals with the lubricant that is being sealed prior to assembly.

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Illustration 1	g01358672

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Illustration 2	g01358643

1. Install springs (16).

2. Attach Tooling (C) and a suitable lifting device to brake anchor (13). The weight of brake anchor (13) is approximately 45 kg (100 lb). Position brake anchor (13).
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   Illustration 3	g01358490

3. Attach Tooling (C) and a suitable lifting device to bearing cage (15). The weight of bearing cage (15) is approximately 82 kg (180 lb). Position bearing cage (15).
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   Illustration 4	g06410052

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   Improper assembly of parts that are spring loaded can cause bodily injury. To prevent possible injury, follow the established assembly procedure and wear protective equipment.

4. Evenly install Tooling (A) to compress the springs.

5. Use Tooling (F) to install lip seal (17) with the lip facing up.
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   Illustration 5	g01358292

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   Illustration 6	g06410071

6. Attach Tooling (C) and a suitable lifting device to the parking brake. The weight of the parking brake is approximately 145 kg (320 lb). Raise the parking brake.

7. Remove Tooling (D) and Tooling (E). Reposition the parking brake, as shown.
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   Illustration 7	g01358233

8. Install Tooling (B) and use two people to install yoke (11). The weight of yoke (11) is approximately 32 kg (70 lb).

9. Install reaction pins (12).
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   Illustration 8	g01358215

10. Install discs (9) and plates (10).
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    Illustration 9	g01358209

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    Illustration 10	g01358132

11. Attach a suitable lifting device to end plate (8). The weight of end plate (8) is approximately 51 kg (113 lb). Install end plate (8) and bolts (7). Tighten bolts (7) to a torque of 125 ± 20 N·m (92 ± 15 lb ft). Rotate bolts (7) and additional 180 degrees ± 5 degrees.
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    Illustration 11	g01358131

12. Install pins (6).
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    Illustration 12	g01358130

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    Illustration 13	g01359288

13. Install seals (5) onto piston (4). Install piston (4) into cylinder (2). Ensure that the vent holes on piston (4) are on the outside of cylinder.
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    Illustration 14	g01358126

14. Install cylinder (2) and bolts (1). Tighten bolts (1) to a torque of 125 ± 20 N·m (92 ± 15 lb ft). Rotate bolts (1) and additional 180 degrees ± 5 degrees. Install fitting (3). Repeat for the other cylinder.
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    Illustration 15	g01358124

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    Illustration 16	g01358192

15. Evenly remove Tooling (A) from the inner holes and install Tooling (A) into the outer holes to engage the parking brake.

End By:

1. Install the parking brake. Refer to Disassembly and Assembly, "Parking Brake - Remove".