HELP 1750 oliver

(1)Reservoir pan which holds hydraulic fluid has hole in it . Remove top , fill pan with gasoline or some other light fluid and set over bucket and see if it leaks .

(2) Gaskets which go on top and underneath hydraulic reservoir pan have gone bad and are leaking . There is an area between bell shaped cover or housing for hydraulic filter and gear shift where gasket could go bad and let fluid leak from hydraulic reservoir into transmission without you seeing leaking fluid on outside . Difficult to test this since removing top usually tears up gaskets anyway .

(3) Front seal on hydraulic pump has gone bad letting fluid go up through pump from reservoir and leak from front of pump down into transmission . My problem on 1555 was here and I was able to get a pump seal kit from AGCO and get pump rebuilt by local hydraulics shop . Cost about $100 not including gaskets to reseal the top and new hydraulic fluid and filter . If pump is bad and cannot be fixed simply by replacing seals you are talking big money for new pump . How is it steering and how are hydraulics working otherwise ? Fact three point hitch arms will not lift causes me to worry may have a bad pump but others may say different .

Someone else may have a different opinion or other suggestions .

Be sure to not operate the tractor until it's fixed and to replace the gear oil when fixed. Hydraulic fluid won't properly lubricate the gears in the T/FD.

You might want to search the archives. A post within the last month or so covered this in excellent detail.