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46. Front PTO
Picture 21. Hydraulic system of the front PTO, 8450---8750.
1. Pressure oil from the tractor hydraulics (1,8---1,9 MPa)
2. Clutch pressure into the PTO unit cone clutch (about 1,1
MPa)
3. Return oil into the tractor hydraulic system
4. Lubricating oil into the oil cooler
5. Return oil from the oil cooler
6. Oil pump for the cooling circuit (pump is different as on
6000 ---8150 tractors)
Note! The oil cooler by ---pass valve, 0,3 MPa, is the
same as on front PTO 6000 ---8150. The oil cooler is dif-
ferent as on 6000---8150 tractors.
1. 4. 1997
850
Model
Code
8450-- 8750
463
Page
8
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Troubleshooting
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