Hyundai HX260L Crawler Excavator Service Repair Manual – PDF Download

Page 1

CONTENTS SECTION 1 GENERAL Group 1 Safety Hints -------------------------------------------------------------------------------------------------------- 1-1 Group 2 Specifications ----------------------------------------------------------------------------------------------------- 1-10

SECTION 2 STRUCTURE AND FUNCTION Group Group Group Group Group Group

1 2 3 4 5 6

Pump Device ----------------------------------------------------------------------------------------------------Main Control Valve -------------------------------------------------------------------------------------------Swing Device ----------------------------------------------------------------------------------------------------Travel Device ----------------------------------------------------------------------------------------------------RCV Lever --------------------------------------------------------------------------------------------------------RCV Pedal ---------------------------------------------------------------------------------------------------------

2-1 2-20 2-47 2-58 2-86 2-93

SECTION 3 HYDRAULIC SYSTEM Group 1 Hydraulic Circuit ------------------------------------------------------------------------------------------------- 3-1 Group 2 Main Circuit -------------------------------------------------------------------------------------------------------- 3-2 Group 3 Pilot Circuit --------------------------------------------------------------------------------------------------------- 3-5 Group 4 Single Operation ------------------------------------------------------------------------------------------------ 3-14 Group 5 Combined Operation ----------------------------------------------------------------------------------------- 3-24

SECTION 4 ELECTRICAL SYSTEM Group Group Group Group

1 2 3 4

Component Location ----------------------------------------------------------------------------------------Electrical Circuit ------------------------------------------------------------------------------------------------Electrical Component Specification ----------------------------------------------------------------Connectors ---------------------------------------------------------------------------------------------------------

4-1 4-3 4-21 4-29

SECTION 5 MECHATRONICS SYSTEM Group Group Group Group Group Group

1 2 3 4 5 6

Outline ---------------------------------------------------------------------------------------------------------------Mode selection System -----------------------------------------------------------------------------------Automatic Deceleration System ----------------------------------------------------------------------Power Boost System ----------------------------------------------------------------------------------------Travel Speed Control System -------------------------------------------------------------------------Automatic Warming Up Function ---------------------------------------------------------------------

5-1 5-3 5-6 5-7 5-8

5-9 Group 7 Engine Overheat Prevention Function ------------------------------------------------------------ 5-10 Group 8 Variable Power Control System ----------------------------------------------------------------------- 5-11


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