Komatsu PC450-8 Operation & Maintenance Manual page 324

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MAINTENANCE PROCEDURE

CHECK SWING PINION GREASE LEVEL, ADD GREASE

Prepare a scale.

1. Swing 3 times each to the left and right, then stop the

2. Remove bolts (1) (2 bolts) on the top of the revolving frame

and remove cover (2).

3. Insert scale (3) through inspection and maintenance hole

(A) into the grease, and check that height (S) of the grease

is at least 54 mm. If the grease level is low, add grease.

4. Check if the grease is milky white. If it is milky white, it is

necessary to change the grease. Please contact your

Komatsu distributor.

The total amount of grease is 33 liters (29.7 kg).

5. Install cover (2) with bolts (1).

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