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0712-0299ZX60USB-3 - Flannery Plant Hire

0712-0299ZX60USB-3 - Flannery Plant Hire

D. HYDRAULIC SYSTEM

D. HYDRAULIC SYSTEM MAINTENANCE Inspection and Maintenance of Hydraulic Equipment WARNING: When inspecting and/or maintaining hydraulic equipment, pay special attention to the following points. 1. Be sure to park the machine on a level, solid surface. 2. Lower the bucket and blade to the ground and stop the engine. 3. Begin servicing hydraulic components only after the components, hydraulic oil and lubricants are completely cooled, and after releasing residual pressure. 3.1 Bleed air pressure from the hydraulic oil tank. 3.2 Each component, hydraulic oil, and lubricant may be hot and/or pressurized just after operation. Allow the machine to cool down before beginning inspection or maintenance. Failure to do so may cause burns caused by contact with hot component and/or oil, or injury by contacting flying off of plugs and /or screws. Hydraulic components may be pressurized even when cooled. Keep body parts and face away from plugs or screws and slowly loosen them. Remove plugs and screws only after thoroughly releasing the residual pressure. 3.3 Never attempt to service or inspect the travel and swing motor circuits on slopes. Even after air pressure is released from the hydraulic oil tank, the machine on a slope will create force to pressurize hydraulic oil in the travel and swing circuit by its own weight. IMPORTANT: • Take special care to keep seal surfaces of hydraulic components free from dirt and to avoid damaging them. • Wash hoses, pipes, tank and their surrounding areas with a washing liquid and thoroughly wipe it out before reconnecting them. • Only use O-rings that are free of damage or defects. Never carelessly file O-ring seat surfaces. Do not allow high pressure hoses to twist when connecting them. Failure to do so may considerably shorten the service life of the hoses. • Do not use hydraulic oils other than those listed in the table “Brand names of recommended hydraulic oil”. When adding hydraulic oil, always use the same brand of oil. Do not mix brands of oil. When selecting to use another brand of oil, be sure to completely replace the oil in the system. • Never run the engine without oil present in the hydraulic oil tank. 7-26

Check Hydraulic Oil Level --- daily MAINTENANCE 1. Park the machine on a solid level surface. Position the machine with the arm cylinder fully retracted and the bucket cylinder fully extended. Lower the bucket and blade to the ground. Stop the engine. 2. Check oil level gauge (1) on the side of the hydraulic oil tank. Oil must be at the specified level on the gauge. 7-27 1 M1M7-05-024 M1M7-03-004

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