CONTENTS SECTION 1 GENERAL Group 1 Safety Hints ------------------------------------------------------------------------------------------------------ 1-1 Group 2 Specifications --------------------------------------------------------------------------------------------------- 1-10
SECTION 2 STRUCTURE AND FUNCTION Group 1 Pump Device ---------------------------------------------------------------------------------------------------- 2-1 Group 2 Main Control Valve ------------------------------------------------------------------------------------------- 2-20 Group Group Group Group
3 4 5 6
Swing Device ---------------------------------------------------------------------------------------------------Travel Device ---------------------------------------------------------------------------------------------------RCV Lever -------------------------------------------------------------------------------------------------------RCV Pedal --------------------------------------------------------------------------------------------------------
2-60 2-71 2-85 2-92
SECTION 3 HYDRAULIC SYSTEM Group Group Group Group Group
1 2 3 4 5
Hydraulic Circuit ----------------------------------------------------------------------------------------------Main Circuit ------------------------------------------------------------------------------------------------------Pilot Circuit -------------------------------------------------------------------------------------------------------Single Operation ---------------------------------------------------------------------------------------------Combined Operation ---------------------------------------------------------------------------------------
3-1 3-2 3-5 3-14 3-24
SECTION 4 ELECTRICAL SYSTEM Group Group Group Group
1 2 3 4
Component Location --------------------------------------------------------------------------------------Electric Circuit -------------------------------------------------------------------------------------------------Electrical Component Specification --------------------------------------------------------------Connectors -------------------------------------------------------------------------------------------------------
4-1 4-3 4-23 4-32
SECTION 5 MECHATRONICS SYSTEM Group Group Group Group
1 2 3 4
Outline --------------------------------------------------------------------------------------------------------------Mode selection System ----------------------------------------------------------------------------------Automatic Deceleration System --------------------------------------------------------------------Power Boost System ---------------------------------------------------------------------------------------
Group Group Group Group
5 6 7 8
Travel Speed Control System ------------------------------------------------------------------------Automatic Warming Up Function -------------------------------------------------------------------Engine Overheat Prevention Function ----------------------------------------------------------Variable Power Control System ----------------------------------------------------------------------
5-1 5-3 5-6 5-7 5-8 5-9 5-10 5-11