SERVICE MANUAL

CONSTRUCTION EQUIPMENT HX480A L, HX520A L CRAWLER EXCAVATOR Table of Content 2. How To Read The Service Manual 5 3. Conversion Table 6 SECTION 1 GENERAL 12 Group 1 Safety Hints 13 Group 2 Specifications 22 SECTION 2 STRUCTURE AND FUNCTION 66 Group 1 Pump Device 67 Group 2 Main Control Valve 83 Group 3 Swing Device 112 Group 4 Travel Device 123 Group 5 Rcv Lever 138 Group 6 Rcv Pedal 145 SECTION 3 HYDRAULIC SYSTEM 151 Group 1 Hydraulic Circuit 152 Group 2 Main Circuit 154 Group 3 Pilot Circuit 157 Group 4 Single Operation 165 Group 5 Combined Operation 175 SECTION 4 ELECTRICAL SYSTEM 183 Group 1 Component Location 184 Group 3 Electrical Component Specification 206 Group 4 Connectors 220 SECTION 5 MECHATRONICS SYSTEM 246 Group 1 Outline 247 Group 2 Mode Selection System 249 Group 3 Automatic Deceleration System 252 Group 4 Power Boost System 253 Group 5 Travel Speed Control System 254 Grou

https://truckmanualshub.com/ HX480A L, HX520A L CRAWLER EXCAVATOR SERVICE MANUAL https://truckmanualshub.com/ Table of Content FOREWORD 4 1. Structure 4 2. How To Read The Service Manual 5 3. Conversion Table 6 SECTION 1 GENERAL 12 Group 1 Safety Hints 13 Group 2 Specifications 22 SECTION 2 STRUCTURE AND FUNCTION 66 Group 1 Pump Device 67 Group 2 Main Control Valve 83 Group 3 Swing Device 112 Group 4 Travel Device 123 Group 5 Rcv Lever 138 Group 6 Rcv Pedal 145 SECTION 3 HYDRAULIC SYSTEM 151 Group 1 Hydraulic Circuit 152 Group 2 Main Circuit 154 Group 3 Pilot Circuit 157 Group 4 Single Operation 165 Group 5 Combined Operation 175 SECTION 4 ELECTRICAL SYSTEM 183 Group 1 Component Location 184 Memorandum 189 Group 3 Electrical Component Specification 206 Group 4 Connectors 220 SECTION 5 MECHATRONICS SYSTEM 246 Group 1 Outline 247 Group 2 Mode Selection System 249 Group 3 Automatic Deceleration System 252 Group 4 Power Boost System 253 Group 5 Travel Speed Control System 254 Group 6 Automatic Warming Up System 255 Group 7 Engine Overheat Prevention System 256 Group 8 Variable Power Control System 257 Group 9 Attachment Flow Control System 258 Group 10 Boom Floating Control System 259…