308E2 CR and 308E2 SR Mini Hydraulic Excavators Boom and Stick Linkage - Lubricate Caterpillar

Note: Cat recommends the use of 5% molybdenum grease for lubricating the boom, stick, and bucket control linkage. Refer to Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations" for more information on molybdenum grease.

Apply lubricant through all fittings after operation under water.

Wipe all fittings before you apply lubricant.

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Illustration 1	g06013303

1. Apply lubricant through the fitting at the base of the boom.
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   Illustration 2	g00411721

2. Apply lubricant through the fittings at the base of the boom cylinder.
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   Illustration 3	g00746217

3. Apply lubricant through fitting (1). This fitting is on the rod end of the boom cylinder.

4. Apply lubricant through fitting (2). This fitting is on the head end of the stick cylinder.
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   Illustration 4	g00746218

5. Apply lubricant through fitting (3). This fitting is at the junction of the boom and the stick.
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   Illustration 5	g00746219

6. Apply lubricant through fitting (4). This fitting is on the rod end of the stick cylinder.

7. Apply lubricant through fitting (5). This fitting is at the junction of the boom and the stick.

8. Apply lubricant through fitting (6). This fitting is on the head end of the bucket cylinder.