Park the tractor on a level surface and engage the parking brake.
Turn off the engine and allow it to cool down.
Disconnect the battery cables to ensure that the tractor is completely de-energized.
Locate the hydraulic pump on the left side of the engine, just below the fuel injection pump.
Remove the two bolts that secure the hydraulic pump to the engine block.
Remove the discharge line from the pump by loosening the two bolts that secure it to the pump housing.
Remove the suction line from the pump by loosening the two bolts that secure it to the pump housing.
Remove the hydraulic pump from the tractor.
Install a new hydraulic pump by reversing the above steps.
Here are some additional tips for removing the hydraulic pump from a 285 Massey Ferguson tractor:
· Use a floor jack to support the hydraulic pump as you remove it from the tractor.
· Be careful not to damage the hydraulic pump or any of its components.
· If you are unsure of how to remove the hydraulic pump, consult a qualified mechanic.