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 ------------------------------------------------------------------------------------------------------ 2-1 Main Control Valve -------------------------------------------------------------------------------------------- 2-20 Swing Device ----------------------------------------------------------------------------------------------------- 2-47 Travel Device ------------------------------------------------------------------------------------------------------ 2-61 RCV Lever ---------------------------------------------------------------------------------------------------------- 2-74 RCV Pedal ---------------------------------------------------------------------------------------------------------- 2-81
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 ------------------------------------------------------------------------------------------------ 3-14 Combined Operation ----------------------------------------------------------------------------------------- 3-26
SECTION 4 ELECTRICAL SYSTEM Group Group Group Group
1 2 3 4
Component Location ----------------------------------------------------------------------------------------- 4-1 Electrical Circuit ------------------------------------------------------------------------------------------------- 4-3 Electrical Component Specification ----------------------------------------------------------------- 4-22 Connectors --------------------------------------------------------------------------------------------------------- 4-33
SECTION 5 MECHATRONICS SYSTEM Group Group Group Group Group Group Group Group
1 2 3 4 5 6 7 8
Outline ----------------------------------------------------------------------------------------------------------------- Mode selection System ------------------------------------------------------------------------------------- Automatic Deceleration System ----------------------------------------------------------------------- Power Boost System ----------------------------------------------------------------------------------------- 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