CASE凯斯CX55小挖操作手册：0008.pdf

7. OPTIONAL EQUIPMENT 7-1 7. OPTIONAL EQUIPMENT 7-2 7. OPTIONAL EQUIPMENT 7.1 OPERATION OF HYDRAULIC BREAKER AND NIBBLER 7.1.1 SELECTION OF HYDRAULIC BREAKER AND NIBBLER When mounting the breaker on the hydraulic excavator, it is necessary to match stability, hydraulic pressure, and the oil level for each breaker. To select hydraulic breakers, contact your distributor. 7.1.2 BEFORE OPERATING BREAKER OR NIBBLER Consult your distributor for the piping when installing the hydraulic breaker. REPLACE THE HYDRAULIC RETURN FILTER ACCORDING TO THE REPLACEMENT SCHEDULE TABLE LISTED. Thoroughly read the hydraulic breaker operation manual and SAFETY PRECAUTIONS from this section, as well as the safety precaution’s section on this manual to avoid damaging the machine or hydraulic breaker during operation. 7.1.3 HYDRAULIC OIL LEVEL CHECK AND CONTAMINATION PREVENTION When the hydraulic breaker is not installed on the machine, attach the blank plugs to the tube end on the arm top end and the hose end on the hydraulic breaker side to prevent dust and water from entering into the piping. Before starting operation, check the capscrews on the tube fixing clamps for looseness, and the connections of the tubes and hoses for oil leakage. 7.1.4 BASIC OPERATION A Read, understand and follow all safety precautions and operation procedures found in this manual before oper- ating the machine or any attachment. 1. Start machine and place the safety lock lever in the UNLOCKED (down) position (B). B 2. Move the throttle lever to the HI idle position. 3. Using boom, arm and bucket contro