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CONSTRUCTION EQUIPMENT HX160 L, HX180 L CRAWLER EXCAVATOR Table of Content Table of Content 3 2. How To Read The Service Manual 5 3. Conversion Table 6 SECTION 1 GENERAL 12 Group 1 Safety 13 Group 2 Specifications (hx160 L) 22 Group 3 Specifications (hx180 L) 41 SECTION 2 STRUCTURE AND FUNCTION 63 Group 1 Pump Device 64 Group 2 Main Control Valve 82 Group 3 Swing Device (type 1) 109 Group 3 Swing Device (type 2) 120 Group 4 Travel Device 131 Group 5 Rcv Lever 139 Group 6 Rcv Pedal 146 SECTION 3 HYDRAULIC SYSTEM 152 Group 1 Hydraulic Circuit 153 Group 2 Main Circuit 154 Group 3 Pilot Circuit 157 Group 4 Single Operation 167 Group 5 Combined Operation 179 SECTION 4 ELECTRICAL SYSTEM 188 Group 1 Component Location 189 Group 2 Electrical Circuit 191 Group 3 Electrical Component Specification 213 Group 4 Connectors 224 SECTION 5 MECHATRONICS SYSTEM 249 Group 1 Outline 250 Group 2 Mode Selecti