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CHAPTER 4
HST system
SECTION 1. SPECIFICATIONS------------------------------------------
SECTION 2. COMPONENT LOCATION-------------------------------
1. Hydraulic hoses and lines------------------------------------------------
2. Hydrostatic transmission------------------------------------------------
3. Transmission main pump case------------------------------------------
4. Transmission back plate and motor-----------------------------------
5. Hydrostatic control linkage ------------------------------------
6. Hydrostatic system schematic------------------------------------------
SECTION 3. TROUBLE SHOOTING------------------------------------
SECTION 4. DIAGNOSTICS----------------------------------------------
SECTION 5. THEORY OF OPERATION------------------------------
1.HYDROSTATIC SYSTEM----------------------------------------------
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4-3
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4-5
4-6
4-7
4-8
4-9
4-10
4-11
4-11
SECTION 6.TESTS AND ADJUSTMENTS --------------------------
1. Hydrostatic pedal and neutral adjustment-------------------------
2. Hydrostatic pump pressure test--------------------------------------
3. Charge pump pressure test--------------------------------------------
4. Hydraulic system bleed procedure----------------------------------
SECTION 7.REPAIR------------------------------------------------------
1. Tractor splitting(Front)-----------------------------------------------
2. Hydrostatic transmission removal & installation----------------
3. Hydrostatic transmission disassembly------------------------------
4. Hydrostatic pump disassembly---------------------------------------
5. Hydrostatic pump inspection-----------------------------------------
6. Hydrostatic pump assembly-------------------------------------------
7. Hydrostatic Motor disassembly--------------------------------------
8. Hydrostatic Motor assembly------------------------------------------
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4-12
4-13
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4-15
4-16
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Summary of Contents for T233 HST
Page 14: ...1 11...
Page 15: ...1 12...
Page 22: ...SECTION 3 GEAR TRAIN DIAGRAMS FIG 1 3 GEAR TRAIN DIAGRAM 1 19...
Page 33: ...SECTION 2 OPERATION CHART FOR DISASSEMBLY AND REASSEMBLY BY MAJOR BLOCKS 2 4...
Page 60: ...3 HST main pump case 4 5...
Page 64: ...6 Hydrostatic system schematic 4 8...
Page 100: ...3 Rear transmission case 5 15 Fig 5 23...
Page 121: ...Power Train Diagram Fig 5 60 5 36...
Page 210: ...SECTION 6 WIRING DIAGRAM 10 12...