Chapter 9
Hydraulic system
SECTION 1. GENERAL DESCRIPTION --------------------------------9-1
SECTION 2. SPECIFICATIONS -------------------------------------------9-2
SECTION 3. MAJOR COMPONENT OF THE HYDRAULIC
SYSTEM ----------------------------------------------------9-3
1.Hydraulic system --------------------------------------------------------- 9-3
2.Flow-divider --------------------------------------------------------------- 9-4
3.Flow-control valve(Slow-return check valve) -----------------------9-6
4.Safety valve(main relief valve)----------------------------------------- 9-8
5.Gear pump ---------------------------------------------------------------- 9-9
6.Filter----------------------------------------------------------------------- 9-14
SECTION 4. REMOTE HYDRAULIC CONTROL------------------9-15
1.Remote hydraulic control valve(optional)--------------------------9-15
SECTION 5.HYDRAULIC SYSTEM -----------------------------------9-16
1.Hydraulic cylinder ------------------------------------------------------9-16
2.Linkage(Internal)--------------------------------------------------------9-18
3.Linkage(External)------------------------------------------------------- 9-19
4.main control valve-------------------------------------------------------9-20
4.1.General description--------------------------------------------------9-20
4.2.Specifications----------------------------------------------------------9-20
4.3.Construction-----------------------------------------------------------9-20
4.4.Operation --------------------------------------------------------------9-23
SECTION 5. SERVICE INSTRUCTION--------------------------------9-27
SECTION 6. TROUBLESHOOTING ----------------------------------- 9-29