24. SERVICE PROCEDURE 24.11 EVERY 5000 HOURS SERVICE Maintenance for every 50, 100, 250, 500 and 1000 hours service should be carried out at the same time. 24.11.1 CHANGE OIL IN HYDRAULIC TANK ¤ WARNING The oil is at high temperature immediately after the machine has been operated. Wait for the oil to cool down before chang- ing the oil. When removing the oil filler cap, turn it slowly to release the internal pressure, then remove it carefully. Prepare the following. Container to catch drained oil: min. 205 ¶ capacity Refill, capacity: 205 ¶ (54.2 US gal, 45.5 UK gal) Handle for socket wrench set 1.
Swing so that the drain plug at the bottom of the hydraulic tank is in the middle between the left and right tracks. 2. Retract the arm and bucket cylinders to the end of the stroke, then lower the boom and put the teeth in contact with the ground. 3. Set the safety lock lever to the LOCK position and stop the engine. AM091810 4. Remove the cap of oil filler port F at the top of the hydraulic tank. 5. Set a container immediately under the drain plug under the machine body to catch the oil that is drained. Using the handle, remove drain plug P and drain the oil. Check the O-ring installed to plug P , and if it is scratched or damaged, replace the O-ring.
After draining the oil, tighten drain plug P . Tightening torque: 70 ± 10 Nm (7 ± 1 kgm, 50 ± 7 lbft) Take care not to get oil on yourself when you remove drain plug P . 3-75