Description
Doosan 430 Series, 440 Plus, 450 Series, 460 Series Hydraulic & Hydrastatic Systems Shop Manual (SB4149E00)
Doosan 430 Series, 440 Plus, 450 Series, 460 Series Hydraulic & Hydrastatic Systems Index:
Index
Systems Operation
Hydraulic System………………………………………………. 5
HST System……………………………………………………… 6
Hydraulic Control Valve ……………………………………… 8
Optional Bucket Self- Leveling System……………….. 13
HST Pump ……………………………………………………… 19
HST Motor ……………………………………………………… 20
Specifications
Hydrostatic Systems ………………………………………… 22
Hydraulic Systems…………………………………………… 23
Testing & Adjusting
Hydraulic System…………………………………………….. 34
Hydrostatic System………………………………………….. 35
Troubleshooting ………………………………………………. 26
Disassembly & Assembly
HST Pump ……………………………………………………… 37
HST Motor ……………………………………………………… 40
Hydraulic Control Valve ……………………………………. 44
Boom Cylinder ………………………………………………… 47
Bucket Cylinder……………………………………………….. 49
Hydraulic Schematic ……………………………………… 51
