P16, P20, P25, P28, P40 and P60 Pulverizers Caterpillar

Removal Procedure

Start By:

1. Remove the hydraulic cylinder from the work tool. Refer to Disassembly and Assembly, "Hydraulic Cylinder - Remove".

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Illustration 1	g00679843
Typical example

1. Install an appropriate nylon lifting sling on crushing arm (1). Attach Tooling (A) and appropriate lifting chains to the outer crushing teeth, as shown. Attach the sling and the chains to a hoist. The weight of the crushing arm is 411 kg (906 lb).

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Illustration 2	g00679867
Typical example

2. Remove two bolts (2) and the washers that secure plate (3) to the housing.

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Illustration 3	g00679870
Typical example

3. Use Tooling (B) in order to remove plate (3) .

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Illustration 4	g00689527

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Illustration 5	g00689528

4. Use a large hammer and a brass drift in order to partially remove pin (4). Attach an appropriate nylon lifting sling and a suitable lifting device to the head of the pin. Continue to remove the pin. Attach another lifting sling to the tail end of the pin. Ensure that the area behind the pin is free of personnel. Tap the pin slowly until the pin is free. Avoid heavy tapping with the hammer in order to prevent the pin from swinging. Lower the pin to the ground and remove the lifting device and the lifting straps. The weight of the pin is 75 kg (165 lb).

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Illustration 6	g00679874
Typical example

5. Lift crushing arm (1) from the work tool. The weight of the crushing arm is 411 kg (906 lb). Remove the nylon lifting sling, the lifting chains, and Tooling (A) .

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Illustration 7	g00687379

6. Remove six spacers (5).

7. Remove three bushings (6) from crushing arm (1) .