Valtra T144 Operator's Manual page 374

5. Troubleshooting
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1. Lubrication filter of the transmission system
2. Low pressure filter of the transmission system
3. Return oil filter of the hydraulic system
Oil filters are located on the right side of the tractor under the cab. The oil filters
are labelled with following text on the mounting piece on top of it:
• HYD for return oil filter
• LUB for transmission lubrication oil filter
• TRANS for low pressure filter.
1. Release the pressure sensor wires of the return oil filter of the auxiliary
hydraulics.
2. Attach an implement to the tractor and connect quick couplings.
3. Run the engine.
4. Operate the implement connected to the auxiliary hydraulics.
5. Check if the pressure oil filter clogging indicator light is lit.
If the indicator light is not lit, the fault is in the return oil filter.
6. Change the return oil filter if the blocking is caused by this filter.
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