U20-3, U25-3 WSM
Hydraulic system (Service section)
IV
-S-135
3) Return drain hose routing
4) Return drain hose routing
Swivel joint
Back
Back
Front
Front
Pilot valve (left)
Control valve
Return valve
Pilot valve (right)
Hydraulic tank
Rod
Rod
Dozer Swing
Arm Travel
(left)
Travel
(right)
Swivel Reserve
Rod
Rod
Rod
Bottom
Boom
Bottom Bucket
Backward
Backward
Left
Bottom
Bottom
Bottom Forward
Forward
Right
Communicating
valve
C/V check valve
P 2
NO.
8
11
12
Location
Q’ty
1
1
1
1
Between R/J and return pipe
Between switching V and return pipe
Between right P/V and return pipe
R/J drain
Switching valve drain
P/V drain
U-20-3
RB411-6447
Δ
RB411-6357
Δ
RB411-6335
Δ
U-25
←
←
←
Low-pressure hose
Pilot hose
1
2
1
1
Between P/V (right) and P/V (left)
Between C/V and return pipe
P/V drain
Boom lock drain
RB411-6334
Δ
RB411-6356
Δ
←
←
Part No.
↑
↑
Hydrauic tank
Control valve
Return pipe
Oil cooler
Swivel motor
Rod
Rod
Dozer Swing
Arm Travel
(left)
Travel
(right)
Swivel Reserve
Rod
Rod
Rod
Bottom
Boom
Bottom Bucket
Backward
Backward
Left
Bottom
Bottom
Bottom Forward
Forward
Right
Communicating
valve
C/V check valve
NO.
1
2
3
3
4
9
10
13
Location
Part No.
Q’ty
1
1
1
1
1
1
1
1
1
Between C/VT2 and O/C upper
(Protective tube)
Between O/C bottom and return pipe
↑
(Protective tube)
Between C/V check valve and swivel M
Between C/V check valve and return pipe
Between return pipe and tank
Oil cooler
Oil cooler
↑
Swivel makeup
Return
Return
U-20-3
RB411-6361
Δ
RB401-6383
Δ
RB411-6362
Δ
RB411-6364
Δ
RB411-6457
Δ
RB411-6354
Δ
RB411-6353
Δ
U-25
←
←
←
RB511-6362
Δ
←
←
←
←
Low-pressure hose
Содержание U20-3
Страница 1: ...WORKSHOP MANUAL KUBOTA EXCAVATOR U20 3 Code No 97899 60740 U25 3 ...
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Страница 47: ...U20 3 U25 3 WSM Machine body Mechanism section II M 16 6 Steel crawler U20 3 No 1 Link 2 Bush 3 Pin ...
Страница 48: ...U20 3 U25 3 WSM Machine body Mechanism section II M 17 U25 3 No 1 Hole 2 shaft ...
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Страница 62: ...U20 3 U25 3 WSM Machine body Service section II S 13 B Front attachment a Parts designation ...
Страница 116: ......
Страница 118: ...U20 3 U25 3 WSM Engine III 3 ...
Страница 121: ...U20 3 U25 3 WSM Engine III 6 Performance curves Model D1105 EBH 10 ...
Страница 122: ...U20 3 U25 3 WSM Engine III 7 Performance curves Model D1105 EBH 11 ...
Страница 123: ...U20 3 U25 3 WSM Engine III 8 b Dimensions ...
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Страница 127: ...U20 3 U25 3 WSM Engine Mechanism section III M 2 A Feature ...
Страница 128: ...U20 3 U25 3 WSM Engine Mechanism section III M 3 B Engine body 1 Cylinder block 2 Cylinder head ...
Страница 129: ...U20 3 U25 3 WSM Engine Mechanism section III M 4 3 Crankshaft 4 Piston and piston rings ...
Страница 130: ...U20 3 U25 3 WSM Engine Mechanism section III M 5 5 Connecting rod 6 Rocker arm 7 Camshaft ...
Страница 131: ...U20 3 U25 3 WSM Engine Mechanism section III M 6 8 Fuel camshaft 9 Flywheel ...
Страница 132: ...U20 3 U25 3 WSM Engine Mechanism section III M 7 C Lubricating system 1 General ...
Страница 133: ...U20 3 U25 3 WSM Engine Mechanism section III M 8 2 Oil pump 3 Relief valve ...
Страница 134: ...U20 3 U25 3 WSM Engine Mechanism section III M 9 4 Oil filter cartridge 5 Oil pressure switch ...
Страница 135: ...U20 3 U25 3 WSM Engine Mechanism section III M 10 D Cooling system 1 General 2 Water pump ...
Страница 136: ...U20 3 U25 3 WSM Engine Mechanism section III M 11 3 Thermostat 4 Radiator not included in the basic engine ...
Страница 137: ...U20 3 U25 3 WSM Engine Mechanism section III M 12 5 Radiator cap ...
Страница 139: ...U20 3 U25 3 WSM Engine Mechanism section III M 14 F Fuel system 1 General 2 Injection pump ...
Страница 140: ...U20 3 U25 3 WSM Engine Mechanism section III M 15 ...
Страница 141: ...U20 3 U25 3 WSM Engine Mechanism section III M 16 ...
Страница 142: ...U20 3 U25 3 WSM Engine Mechanism section III M 17 3 Injection nozzle 4 Fuel filter not included in the basic model ...
Страница 143: ...U20 3 U25 3 WSM Engine Mechanism section III M 18 5 Governor ...
Страница 144: ...U20 3 U25 3 WSM Engine Mechanism section III M 19 ...
Страница 145: ...U20 3 U25 3 WSM Engine Mechanism section III M 20 6 Automatic advance timer not included in the basic model ...
Страница 146: ...U20 3 U25 3 WSM Engine Mechanism section III M 21 ...
Страница 147: ...U20 3 U25 3 WSM Engine Mechanism section III M 22 G Electrical system 1 Charging system ...
Страница 148: ...U20 3 U25 3 WSM Engine Mechanism section III M 23 H Turbo charger system ...
Страница 149: ...U20 3 U25 3 WSM Engine Mechanism section III M 24 ...
Страница 150: ...U20 3 U25 3 WSM Engine Mechanism section III M 25 ...
Страница 151: ...U20 3 U25 3 WSM Engine Mechanism section III M 26 ...
Страница 152: ...U20 3 U25 3 WSM Engine Mechanism section III M 27 ...
Страница 162: ...U20 3 U25 3 WSM Engine Service section III S 10 B General 1 Engine identification ...
Страница 163: ...U20 3 U25 3 WSM Engine Service section III S 11 2 General precaution ...
Страница 164: ...U20 3 U25 3 WSM Engine Service section III S 12 3 Tightening torques ...
Страница 165: ...U20 3 U25 3 WSM Engine Service section III S 13 4 Troubleshooting ...
Страница 166: ...U20 3 U25 3 WSM Engine Service section III S 14 ...
Страница 167: ...U20 3 U25 3 WSM Engine Service section III S 15 ...
Страница 168: ...U20 3 U25 3 WSM Engine Service section III S 16 5 Servicing specifications ...
Страница 169: ...U20 3 U25 3 WSM Engine Service section III S 17 ...
Страница 170: ...U20 3 U25 3 WSM Engine Service section III S 18 ...
Страница 171: ...U20 3 U25 3 WSM Engine Service section III S 19 ...
Страница 172: ...U20 3 U25 3 WSM Engine Service section III S 20 ...
Страница 173: ...U20 3 U25 3 WSM Engine Service section III S 21 ...
Страница 174: ...U20 3 U25 3 WSM Engine Service section III S 22 ...
Страница 175: ...U20 3 U25 3 WSM Engine Service section III S 23 ...
Страница 176: ...U20 3 U25 3 WSM Engine Service section III S 24 ...
Страница 177: ...U20 3 U25 3 WSM Engine Service section III S 25 6 Maintenance check list ...
Страница 178: ...U20 3 U25 3 WSM Engine Service section III S 26 7 Check and maintenance ...
Страница 179: ...U20 3 U25 3 WSM Engine Service section III S 27 ...
Страница 180: ...U20 3 U25 3 WSM Engine Service section III S 28 ...
Страница 181: ...U20 3 U25 3 WSM Engine Service section III S 29 ...
Страница 182: ...U20 3 U25 3 WSM Engine Service section III S 30 ...
Страница 183: ...U20 3 U25 3 WSM Engine Service section III S 31 ...
Страница 184: ...U20 3 U25 3 WSM Engine Service section III S 32 ...
Страница 185: ...U20 3 U25 3 WSM Engine Service section III S 33 ...
Страница 186: ...U20 3 U25 3 WSM Engine Service section III S 34 ...
Страница 187: ...U20 3 U25 3 WSM Engine Service section III S 35 ...
Страница 188: ...U20 3 U25 3 WSM Engine Service section III S 36 ...
Страница 189: ...U20 3 U25 3 WSM Engine Service section III S 37 ...
Страница 190: ...U20 3 U25 3 WSM Engine Service section III S 38 ...
Страница 191: ...U20 3 U25 3 WSM Engine Service section III S 39 C Engine body CHECKING AND ADJUSTING ...
Страница 192: ...U20 3 U25 3 WSM Engine Service section III S 40 DISASSEMBLING AND ASSEMBLING ...
Страница 193: ...U20 3 U25 3 WSM Engine Service section III S 41 1 Draining water and oil 2 External components ...
Страница 194: ...U20 3 U25 3 WSM Engine Service section III S 42 3 Cylinder head and valves ...
Страница 195: ...U20 3 U25 3 WSM Engine Service section III S 43 ...
Страница 196: ...U20 3 U25 3 WSM Engine Service section III S 44 4 Gear case ...
Страница 197: ...U20 3 U25 3 WSM Engine Service section III S 45 ...
Страница 198: ...U20 3 U25 3 WSM Engine Service section III S 46 ...
Страница 199: ...U20 3 U25 3 WSM Engine Service section III S 47 ...
Страница 200: ...U20 3 U25 3 WSM Engine Service section III S 48 ...
Страница 201: ...U20 3 U25 3 WSM Engine Service section III S 49 ...
Страница 202: ...U20 3 U25 3 WSM Engine Service section III S 50 5 Piston and connecting rod ...
Страница 203: ...U20 3 U25 3 WSM Engine Service section III S 51 ...
Страница 204: ...U20 3 U25 3 WSM Engine Service section III S 52 ...
Страница 205: ...U20 3 U25 3 WSM Engine Service section III S 53 6 Flywheel and crankshaft ...
Страница 206: ...U20 3 U25 3 WSM Engine Service section III S 54 ...
Страница 207: ...U20 3 U25 3 WSM Engine Service section III S 55 SERVICING 1 Cylinder head ...
Страница 208: ...U20 3 U25 3 WSM Engine Service section III S 56 ...
Страница 209: ...U20 3 U25 3 WSM Engine Service section III S 57 ...
Страница 210: ...U20 3 U25 3 WSM Engine Service section III S 58 ...
Страница 211: ...U20 3 U25 3 WSM Engine Service section III S 59 ...
Страница 212: ...U20 3 U25 3 WSM Engine Service section III S 60 2 Timing gear and camshaft ...
Страница 213: ...U20 3 U25 3 WSM Engine Service section III S 61 ...
Страница 214: ...U20 3 U25 3 WSM Engine Service section III S 62 3 Piston and connecting rod ...
Страница 215: ...U20 3 U25 3 WSM Engine Service section III S 63 ...
Страница 216: ...U20 3 U25 3 WSM Engine Service section III S 64 ...
Страница 217: ...U20 3 U25 3 WSM Engine Service section III S 65 4 Crankshaft ...
Страница 218: ...U20 3 U25 3 WSM Engine Service section III S 66 ...
Страница 219: ...U20 3 U25 3 WSM Engine Service section III S 67 ...
Страница 220: ...U20 3 U25 3 WSM Engine Service section III S 68 ...
Страница 221: ...U20 3 U25 3 WSM Engine Service section III S 69 ...
Страница 222: ...U20 3 U25 3 WSM Engine Service section III S 70 ...
Страница 223: ...U20 3 U25 3 WSM Engine Service section III S 71 5 Cylinder ...
Страница 224: ...U20 3 U25 3 WSM Engine Service section III S 72 ...
Страница 225: ...U20 3 U25 3 WSM Engine Service section III S 73 D Lubricating system CHECKING SERVICING 1 Oil pump ...
Страница 226: ...U20 3 U25 3 WSM Engine Service section III S 74 ...
Страница 227: ...U20 3 U25 3 WSM Engine Service section III S 75 E Cooling system CHECKING 1 Fan belt 2 Radiator ...
Страница 228: ...U20 3 U25 3 WSM Engine Service section III S 76 DISASSEMBLING AND ASSEMBLING ...
Страница 229: ...U20 3 U25 3 WSM Engine Service section III S 77 ...
Страница 230: ...U20 3 U25 3 WSM Engine Service section III S 78 F Fuel system CHECKING AND ADJUSTING 1 Injection pump ...
Страница 231: ...U20 3 U25 3 WSM Engine Service section III S 79 ...
Страница 232: ...U20 3 U25 3 WSM Engine Service section III S 80 2 Injection nozzle ...
Страница 233: ...U20 3 U25 3 WSM Engine Service section III S 81 DISASSEMBLING AND ASSEMBLING 1 Injection pump ...
Страница 234: ...U20 3 U25 3 WSM Engine Service section III S 82 2 Injection nozzle ...
Страница 235: ...U20 3 U25 3 WSM Engine Service section III S 83 G Electrical system CHECKING 1 Starter ...
Страница 236: ...U20 3 U25 3 WSM Engine Service section III S 84 2 Glow plug DISASSEMBLING AND ASSEMBLING 1 Starter ...
Страница 237: ...U20 3 U25 3 WSM Engine Service section III S 85 2 Alternator ...
Страница 238: ...U20 3 U25 3 WSM Engine Service section III S 86 ...
Страница 239: ...U20 3 U25 3 WSM Engine Service section III S 87 ...
Страница 240: ...U20 3 U25 3 WSM Engine Service section III S 88 SERVICING 1 Starter ...
Страница 241: ...U20 3 U25 3 WSM Engine Service section III S 89 ...
Страница 242: ...U20 3 U25 3 WSM Engine Service section III S 90 2 Alternator ...
Страница 243: ...U20 3 U25 3 WSM Engine Service section III S 91 ...
Страница 244: ...U20 3 U25 3 WSM Engine Service section III S 92 ...
Страница 245: ...U20 3 U25 3 WSM Engine Service section III S 93 H Turbo charger system CHECKING ...
Страница 246: ...U20 3 U25 3 WSM Engine Service section III S 94 ...
Страница 247: ...U20 3 U25 3 WSM Engine Service section III S 95 DISASSEMBLING AND ASSEMBLING ...
Страница 248: ...U20 3 U25 3 WSM Engine Service section III S 96 ...
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Страница 279: ...U20 3 U25 3 WSM Hydraulic system Mechanism section IV M 28 ...
Страница 280: ...U20 3 U25 3 WSM Hydraulic system Mechanism section IV M 29 b Pilot valve control diagram ...
Страница 296: ...U20 3 U25 3 WSM Hydraulic system Mechanism section IV M 45 U25 3 KAYABA a Structure specifications ...
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Страница 311: ...U20 3 U25 3 WSM Hydraulic system Mechanism section IV M 59 I Hydraulic circuit diagram a U20 3 Fixed undercarriage ...
Страница 312: ...U20 3 U25 3 WSM Hydraulic system Mechanism section IV M 60 b U20 3 Retractable undercarriage ...
Страница 313: ...U20 3 U25 3 WSM Hydraulic system Mechanism section IV M 61 c U25 3 ...
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Страница 330: ...U20 3 U25 3 WSM Hydraulic system Service section IV S 15 1 Travel mechanism check points ...
Страница 386: ...U20 3 U25 3 WSM Hydraulic system Service section IV S 71 Photo 7 1 Photo 7 2 Photo 7 3 Photo 7 4 Photo 7 5 Photo 7 6 ...
Страница 387: ...U20 3 U25 3 WSM Hydraulic system Service section IV S 72 Photo 7 7 Photo 7 8 Photo 7 9 Photo 7 10 Photo 7 11 Photo 7 12 ...
Страница 397: ...U20 3 U25 3 WSM Hydraulic system Service section IV S 82 ...
Страница 415: ...U20 3 U25 3 WSM Hydraulic system Service section IV S 100 3 Component parts of wheel motor ...
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Страница 480: ...U20 3 U25 3 WSM Electrical system Service section V S 3 a Front ...
Страница 482: ...U20 3 U25 3 WSM Electrical system Service section V S 5 c Swivel frame ...
Страница 483: ...U20 3 U25 3 WSM Electrical system Service section V S 6 Around battery ...
Страница 486: ...U20 3 U25 3 WSM Electrical system Service section V S 9 3 Around selector valve ...
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