MF35 Hydraulics

[Justin Mc]

My MF35 had an issue where the 3-point would drop when I depressed the clutch pedal. So doing research it sounded like the O'Rings on the standpipe. I have replaced them and I am certain the standpipe is back down in the hole, but now I have no hyrdaulics at all. 3-point doesn't even move. It was working before, just wouldn't hold up when you pressed the clutch pedal down. Any ideas on what to check now? I've tested it with the small cover off and no oil comes up out of the standpipe when you bump the starter. Thanks for any help.

 

[Justin Mc]

So, I pulled off the side cover with the dipstick. Pulled out the standpipe, then used my finger to locate the standpipe into the hole. Tested it with the cover off and voila, we have pressure, oil comes up out of the standpipe so I must not have had it in the right place before, though looking at it through the side hole I saw no difference in its location before or after.

BUT.... it still drops when depressing clutch pedal to disengage clutch!!!

Any ideas to check simply before tearing off the top cover? It has an aftermarket remote kit on it and one of the lines runs across the top of the plate under the new seat I put on (was on top of the stock seat bracket). I used standoffs for the seat to clear the line.

 

[Bob NY]

You have a leak somewhere in the hydraulic system. Take that side cover off again and look inside with a light while the tractor is running with the 3ph up. You will probably oil running out where it shouldn't.

 

[Dieseltech]

Do you have the SINGLE stage clutch, or two stage dual clutch? The PTO/HYDRAULIC pump drive on single stage tractors WILL drop the lift when the clutch pedal is pushed down. The dual two stage will do the same thine IF the SECOND stage clutch is stopped when pushing the pedal FULLY DOWN. The lift should go down slowly until the pump is running again, that's normal.

 

[Justin Mc]

You nailed it. I figured out I was way to heavy on the clutch pedal. Tractor is a gift from my uncle's widow and I am still figuring it all out, but you are exactly on point. Thank you!!!