Johan Venter
New member
- Joined
- Feb 6, 2022
- Messages
- 3
- Tractor
- Massey Ferguson 165
Good day
We recently bought a secondhand Massey Ferguson 165 tractor (year and hours unknown). The tractor is fitted with a MK2 hydraulic pump. The lift or pump however do have so issues.
When we try to hook and pickup/lift heavy implement (slasher) the tractor does not want to lift the implement via the 3-point links. Smaller or less heavy implements (rake) does not show the same problem. With regards to the more heavy implements (the implements are not too heavy for the tractor and should easily be able to lift the equipment), if we adjust the control lever fast from the down position to the up position the tractor lifts the equipment to the required height and the tractor automatically then lowers it again, with the control lever still in the up position. This happens with both the pressure/position and draft control levers separately. We tried to have the response lever in the fast responding position and slow position but still managed to get the same result of the equipment lifting to a certain point and then quickly lowering to the ground again. We also tried with higher revs on the tractor, but still the same problem persists. The PTO does engage and seems to be working 100%.
We replaced all the O-rings on the pump, replaced the valve chambers with new chambers and vales, replaced the rings on the pistons of the pump with new ones, cleaned the filter, replaced the hydraulic control valve, replaced the hydraulic oil, replaced the lever assembly valve control and roller and pin, replaced the relief valve and replaced the O-rings on the stack pipe.
We are stuck at the moment as to why the lift is responding in this manner. Could it be that some internal setting of adjustment might have been tampered with or what would the next step be in assessing the issue and repairing the hydraulics?
We recently bought a secondhand Massey Ferguson 165 tractor (year and hours unknown). The tractor is fitted with a MK2 hydraulic pump. The lift or pump however do have so issues.
When we try to hook and pickup/lift heavy implement (slasher) the tractor does not want to lift the implement via the 3-point links. Smaller or less heavy implements (rake) does not show the same problem. With regards to the more heavy implements (the implements are not too heavy for the tractor and should easily be able to lift the equipment), if we adjust the control lever fast from the down position to the up position the tractor lifts the equipment to the required height and the tractor automatically then lowers it again, with the control lever still in the up position. This happens with both the pressure/position and draft control levers separately. We tried to have the response lever in the fast responding position and slow position but still managed to get the same result of the equipment lifting to a certain point and then quickly lowering to the ground again. We also tried with higher revs on the tractor, but still the same problem persists. The PTO does engage and seems to be working 100%.
We replaced all the O-rings on the pump, replaced the valve chambers with new chambers and vales, replaced the rings on the pistons of the pump with new ones, cleaned the filter, replaced the hydraulic control valve, replaced the hydraulic oil, replaced the lever assembly valve control and roller and pin, replaced the relief valve and replaced the O-rings on the stack pipe.
We are stuck at the moment as to why the lift is responding in this manner. Could it be that some internal setting of adjustment might have been tampered with or what would the next step be in assessing the issue and repairing the hydraulics?