336E Excavator and 336E MHPU Mobile Hydraulic Power Unit Machine Systems Bucket - Remove and Install Caterpillar

Removal Procedure

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When you are using hydraulic cylinders and puller studs, always ensure that the rated capacity of the puller stud meets or exceeds the rated capacity of the hydraulic cylinder. If the puller stud does not meet or exceed the rated capacity of the hydraulic cylinder, a sudden failure of the puller stud could occur. The sudden failure of the puller stud could result in personal injury or death.

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Illustration 1	g01209880

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Illustration 2	g01202290

1. Position bucket (1) on the ground. Position O-ring seals (2) from the pin joint onto the flanges of bucket (1) .

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Illustration 3	g01209896

2. Attach a suitable lifting device and Tooling (B) to Tooling (A). Attach Tooling (A) to pin assembly (4). The weight of Tooling (A) is approximately 137 kg (300 lb).

3. Remove bolt (3). Use Tooling (A) in order to remove pin assembly (4). The combined weight of Tooling (A) and pin assembly (4) is approximately 170 kg (375 lb).

   Note: Reposition the suitable lifting device as pin assembly (4) is removed.

4. Remove O-ring seals (2) (not shown).

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Illustration 4	g01202427

5. Position O-ring seals (5) from the pin joint onto the flanges of bucket (1) .

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Illustration 5	g01223800

6. Attach a suitable lifting device and Tooling (B) to Tooling (C). Attach Tooling (C) to pin assembly (7). The weight of Tooling (C) is approximately 170 kg (375 lb).

7. Remove bolt (6). Use Tooling (C) in order to remove pin assembly (7). The combined weight of Tooling (C) and pin assembly (7) is approximately 210 kg (465 lb).

   Note: Reposition the suitable lifting device as pin assembly (7) is removed.

8. Remove O-ring seals (5) .

9. Use the machine hydraulics in order to raise the stick from bucket (1) .

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Illustration 6	g01202447

10. Remove bolts (11), plate (10), shims (9), and flange (8) from bucket (1) .

Installation Procedure

1. Install bucket (1) in the reverse order of removal.
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   Illustration 7	g01223803

   1. Use Tooling (D) in order to install pin assembly (7). Attach a suitable lifting device to pin assembly (7). The weight of pin assembly (7) is approximately 43 kg (95 lb).
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   Illustration 8	g02142902

   2. Move the bucket to the side until the bucket contacts the stick. Measure the clearance between the bucket and the stick at the flange. Record this dimension as Dimension (X). Add or remove shims (9) until Dimension (X) is 0.5 to 1.0 mm (0.02 to 0.04 inch).
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   Illustration 9	g01223804

   3. Use Tooling (E) in order to install pin assembly (4). Attach a suitable lifting device to pin assembly (4). The weight of pin assembly (4) is approximately 34 kg (75 lb).