MAINTENANCE MAINTENANCE PROCEDURE 15. Bleeding air from travel motor (Bleed the air only when the oil inside the travel motor case has been drained.) 16. Run the engine at low idling, remove hose (1) from port C, then when the oil has flowed out, tighten it again. 17. Run the engine at low idling and swing the work equipment 90° to bring it to the side of the track. 18. Jack up the machine until the track is raised slightly from the ground.Rotate the track under no load for 2 minutes. Repeat this procedure on both the left and right sides, and rotate the track equally both forward and in reverse. 19.
Bleeding air from attachment (when installed) If a breaker or other attachment has been installed, run the engine at low idling and operate the attachment pedal repeatedly (approx. 10 times) until the air has been bled from the attachment circuit. NOTICE q If the method of bleeding the air from the attachment itself is specified by the manufacturer, bleed the air according to the specified procedure. q After completing the air bleeding operation, stop the engine, and leave the machine for 5 minutes before starting operations. This will remove the air bubbles in the oil inside the hydraulic cylinders. q Check that there is no leakage of oil and wipe off any oil that has been spilled.
q After completing the air bleeding operation, inspect the oil level, and if the oil level is low, add oil. 4-45