Kubota WSM BT603, Руководство по ремонту

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4.2.1 Control valve in neutral position................................................................................................7-5
4.2.2 Control valve in lift position .......................................................................................................7-6
4.2.3 Control valve in down position ..................................................................................................7-7
5. Flow priority valve .....................................................................................................................................7-8
5.1 Outline of flow priority valve ..............................................................................................................7-8
5.2 Structure of flow priority valve ...........................................................................................................7-9
5.3 Specification of flow priority valve ...................................................................................................7-10
6. Relief valve .............................................................................................................................................7-10
6.1 Outline of relief valve.......................................................................................................................7-10
6.2 Structure of relief valve ................................................................................................................... 7-11
6.3 Function of relief valve ....................................................................................................................7-12
6.4 Specification of relief valve..............................................................................................................7-13
7. Hydraulic cylinder ...................................................................................................................................7-14
7.1 Structure of hydraulic cylinder.........................................................................................................7-14
8. Hydraulic block type outlet......................................................................................................................7-15
8.1 Structure of hydraulic block type outlet ...........................................................................................7-15
9. Mower linkage ........................................................................................................................................7-16
9.1 Structure of mower linkage .............................................................................................................7-16
10. Front loader valve.................................................................................................................................7-17
10.1 Structure........................................................................................................................................7-17
10.1.1 Structure of front loader valve and pipe................................................................................7-17
10.1.2 Structure of front loader control valve...................................................................................7-18
10.2 Front loader hydraulic circuit .........................................................................................................7-19
10.3 Function of loader control valve ....................................................................................................7-20
10.3.1 Loader control lever in neutral position.................................................................................7-20
10.3.2 Loader control lever in up position........................................................................................7-21
10.3.3 Loader control lever in down position ...................................................................................7-23
10.3.4 Loader control lever in floating position ................................................................................7-25
10.3.5 Loader control lever in roll-back position ..............................................................................7-27
10.3.6 Loader control lever in dump position...................................................................................7-30
SERVICING .....................................................................................................................................................7-33
1. Troubleshooting for hydraulic system .....................................................................................................7-33
2. Servicing specifications for hydraulic system .........................................................................................7-34
3. Tightening torques for hydraulic system .................................................................................................7-35
4. Checking and adjusting ..........................................................................................................................7-36
4.1 Relief valve......................................................................................................................................7-36
4.1.1 Checking relief valve setting pressure ....................................................................................7-36
4.2 Pump and priority valve...................................................................................................................7-36
4.2.1 Checking hydraulic pump oil flow ...........................................................................................7-36
4.2.2 Checking power steering oil flow ............................................................................................7-37
4.3 Mower lift linkage ............................................................................................................................7-38
4.3.1 Adjusting mower lift linkage ....................................................................................................7-38
5. Disassembling and assembling ..............................................................................................................7-38
5.1 Hydraulic pump ...............................................................................................................................7-38
5.1.1 Removing battery....................................................................................................................7-38
5.1.2 Removing lift rod and lower link..............................................................................................7-39
5.1.3 Removing ROPS ....................................................................................................................7-39
5.1.4 Removing seat........................................................................................................................7-40
5.1.5 Removing step........................................................................................................................7-40
5.1.6 Removing fender ....................................................................................................................7-40
5.1.7 Removing fuel tank .................................................................................................................7-41
5.1.8 Removing fender center stay..................................................................................................7-41
5.1.9 Removing hydraulic pump ......................................................................................................7-41
5.2 Hydraulic cylinder block ..................................................................................................................7-42
5.2.1 Removing battery....................................................................................................................7-42
5.2.2 Removing lift rod and lower link..............................................................................................7-43
5.2.3 Removing ROPS ....................................................................................................................7-43
5.2.4 Removing seat........................................................................................................................7-43
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BX23S, LA340, BT603, RCK54D, RCK60D, RCK54, RCK60B
KiSC issued 03, 2017 A