1995 Massey Ferguson 1235 Compact No Fwd/Reverse

ziametals · Sep 25, 2013

Good Morning Everyone, I have to say this is a top notch forum and a wealth of knowledge for just about any tractor owner.

I have a 95 Massey 1235 Compact with a hydrostatic Tranny and need to see if anyone can give some advice. We were doing some dirt work in the backyard recently over the weekend and Saturday it ran fine.

Sunday it ran for a few hours then after lunch I come back to show my nephew how to run it. Went through everything then when trying to show him how to run it fwd and reverse it would not move except when pushing the fwd/rev lever all the way and then it would sound like the gears were grinding.

One thing that popped into my head is when it was off I pushed in the clutch to show what it was for then after turnin it on the above mentioned happened. I was able to finally get it to move enough to get back to the main yard but going up a small grade it barely had any power. Now it will not move an inch fwd or reverse.

I am hoping someone has ran into this before so I can get a better idea of what to look at once I get the service manuals I ordered. I am thinking it is either transmission or clutch related, let's see what comes about.

Also, if anyone has a good source for parts and or salvage yards I am all ears.

Any help is greatly appreciated. -ZiaMetals

Kernopelli · Sep 25, 2013

Could be a clutch issue. If it is slipping, put the trans in low range and see if it will now pull. Hard to say what could happen "suddenly" when you pushed the pedal in but it's unlikely you wouldn't notice a difference in how the pedal now "feels" if it is a clutch issue.

Basic hydrostat troubleshooting:

If The Machine Loses Power Or Won't Move In Either Direction
1)The oil may be low
2)The wrong kind of oil may have been used
3)The system may have an oil leak
4)There may be a restriction in the oil line
5)The filter may be plugged
6)The drive may be disconnected
7)The control linkage may not be functioning
8)The pump and motor may be damaged or worn out
9)The charge pressure may be too low
10)The check valves may be defective
11)The charge pump relief valve may be malfunctioning
12)The charge pump may be defective
13)The pump drive shaft may be binding
14)The system may have air in it
15)The pressure control valve may be stuck open

ziametals · Sep 25, 2013

Thanks for the input Darryl, I will take a look at all those options and update after I get back to NM in a few weeks. Hopefully I will find out more and be able to post some info in case someone else runs into this issue.