Hyundai Hx140l Crawler Excavator Service Repair Manual

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 2-19 2-46 2-57 2-78 2-85

SECTION 3 HYDRAULIC SYSTEM Group Group Group Group Group

1 2 3 4 5

Hydraulic Circuit -------------------------------------------------------------------------------------------------- 3-1 Main Circuit --------------------------------------------------------------------------------------------------------- 3-2 Pilot Circuit ---------------------------------------------------------------------------------------------------------- 3-5 Single Operation ------------------------------------------------------------------------------------------------- 3-15 Combined Operation ------------------------------------------------------------------------------------------ 3-27

SECTION 4 ELECTRICAL SYSTEM Group Group Group Group

1 2 3 4

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

4-1 4-3 4-22 4-33

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


Turn static files into dynamic content formats.

Create a flipbook
Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.