. MAINTENANCE MAINTENANCE PROCEDURE 4 - 56 CHECK SWING PINION GREASE LEVEL, ADD GREASE Prepare a scale. 1. Remov e bolts (1) (2 bolts) on t he top of the revolving frame and remove cove r (2 2. Insert a scale int o the grease and che ck that the height of the grease in the portion whe re th e pinion p asses is at least 14 mm (0.6 in). Add mo re greas e if necessar 3. Check if the greas e milky necess Komats u distributor. The total a mount of grease: 14.5 liters (3. 83 US gal) 4. Install c over ( 2) with bolts (1).