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10.11 MAINTENANCE EVERY 5000 HOURS
Perform this maintenance in tandem with maintenance every 50, 250, 500 and 1000 hours.
[1] REPLACING OIL IN HYDRAULIC OIL TANK AND CLEANING STRAINERS
• Various parts are at elevated temperatures immediately after stopping the engine
operation. Do not remove the strainer immediately. Wait until the oil is cooled.
• The oil may spurt out when the filler cap of the hydraulic oil tank is removed.
To relieve the internal pressure, slowly turn the oil inlet cap.
• Refer to the description under "MAINTENANCE 7.1 USE OF FUEL AND LUBRICATING
OIL ACCORDING TO TEMPERATURES” for the oil to be used.
• Be sure to put the machine in the travelling posture when checking the oil level.
If you check the oil level in the working posture, you judge the oil level to be low and
feed the oil excessively.
• After replacing the oil, do not start the engine for a while until pipi
ng and hydraulic
equipment are filled with the oil.
• Volume of replaced oil: 81 liters
• Prepare a container to receive spent oil.
• Have a filter wrench available.
1. Retract the hook block in the simplified retracting
recess and set the Machine to the "travelling posture"
as shown in the sketch on the right.
2. Turn the upper slewing body so that the drain plug
under the hydraulic oil tank comes between the left
and right rubber tracks.
3. Set the lock lever to the lock position, and stop the
engine.
4. Loosen the bolts to remove the cover (1) on top of the
hydraulic oil tank.
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