1440 won't move

[R Bedell]

Maybe the incorrect filter caused the problem........

[zippy1]

Originally Posted by olds45512

i feel like an idiot. i changed the fluid and filter on my dads 1440 and now it wont move, i let it sit overnight with no fluid in it to let the silicone on the rearend dry good so i assume the pump has air in it and its not picking up the fluid. what should i do?

I don't figure how it could have air in it. When you filled the case with fluid, the fluid is replacing whatever air there would have been, yes?
I've always left every rear end cover sit over night before filling with fluid,

[CubDieselFan]

Originally Posted by R Bedell

Maybe the incorrect filter caused the problem........

Yep, That is what I am thinking.

[Terry C]

Originally Posted by zippy1

I don't figure how it could have air in it. When you filled the case with fluid, the fluid is replacing whatever air there would have been, yes?
I've always left every rear end cover sit over night before filling with fluid,

I've left them sit for a couple of days before even. I put the fluid in and wait for a couple of hrs before I start it, thinking gravity will take a little while to push the fluid thru the filter. I don't know why the loosening of the filter helped though.

[Sam Mac]

Took a look at the suction lines for the 1440. The early 1440 looks like it has a hose from the filter up to the charge pump, the later machine have a steel line. I'm wondering if this is an early machine maybe the hose collapsed? Or if it just got air bound like some of the older Sundstrand's tend to do with the suction line that loops up over the top of the pump. Oil should have poured out no matter when the filter was loosened up because the filter is well below the oil level. I recall another wont prime issue a while back that turned out to be part of a paper towel blocking the suction line after the owner cleaned the case.

[olds45512]

Originally Posted by Terry C

I've left them sit for a couple of days before even. I put the fluid in and wait for a couple of hrs before I start it, thinking gravity will take a little while to push the fluid thru the filter. I don't know why the loosening of the filter helped though.

I'm not sure either but it worked. With both the Purolator filter and the Napa filter the tractor ran for about 10 minutes each and nothing was happening but as soon as we ran it with the filter loose it started to work, I almost got ran over while tightening the filter down. I've used the Purolator filter many times without issue so I'm no convinced it was the problem since the Napa filter did the same, I guess this new to us tractor just wanted to give me a hard time.

[olds45512]

Serial # is 875642

[Sam Mac]

I'm glad it's working but it bugs me that I don't know what caused the problem.

[zippy1]

Originally Posted by Sam Mac

I recall another wont prime issue a while back that turned out to be part of a paper towel blocking the suction line after the owner cleaned the case.

Oh you remember that?
Me to, was a head scratch-er for awhile....