I had to replace the coupler between engine and the hydraulic pump, I did not mark the 4 hoses that go to the track drive units, (2 from each side), I'm not sure which hose goes where. The are 2 long fittings toward the back and 2 toward the front of the pump, 2 on top and 2 on bottom. Have tried looking for a hose diagram but have found nothing that shows a good picture. Any suggestions?