24. SERVICE PROCEDURE 9. Screw in the oil filler cap and install the cover. 10. To bleed the air, start the engine according to 12.2 “STARTING ENGINE” and run the engine at low idling for 10 minutes. 11. Stop the engine. REMARK Operate the machine after halting for more than 5 minutes to elimi- nate bubbles in the oil inside the tank. 12. Check for oil leakage and wipe off any spilled oil. When the hydraulic breaker is installed, the hydraulic oil deteriorates earlier than in normal bucket digging work. The first element replacement should be at 100 to 150 hours for new machines. Thereafter, replace the element according to the table on the right.
Replace the additional filter element for the breaker every approx 250 hours (when breaker operating ratio is more than 50%) according to the table on the right (see 24.2.15 “Replace Additional breaker Filter Element”) 24.5.4 LUBRICATE SWING CIRCLE (3 points) 1. Lower the work equipment to the ground. 2. Using a grease pump, pump in grease through the grease fittings shown by arrows. 3. After greasing, wipe off all the old grease that was pushed out. PC450-ENG 3-57