1070 broke powershift cable

jonesrj

New User
Hello, I am posting this for my uncle who has been having trouble with his 1070. I want to apologize in advance since I don't know all the details about the problem myself, but maybe its common enough that some of the experts here can give their advice. Here is what my uncle told me.

When the tractor is cold the clutch pedal doesn't kick the powershift down like it is supposed to. He said then it broke the powershift cable -- now I don't know if pushing the pedal broke the cable or if it just happened over time. He's got a new PS cable, but wants to know if there is something else that caused the previous cable to break that we need to fix beforehand. In other words, if he just puts the new cable on how liable is it to break premature?

Thank you very much. I haven't posted much on here before but my Dad did. He passed on late last year pretty suddenly -- I'm still trying to cope, but he talked about several of the folks on YT like he had known them his whole life and he always liked to follow progress on a good restoration project posted on the site.
 
Sorry to hear of the lose of your father. As for the problem at had I have been servicing these tractors for years and have yet to see a PS cable break, but perhaps
someone has. Normally they get so darn tight you can not hardly move them. All this clutch and PS linkage is very simple mechanical links. By removing the floor board
cover from the platform and operating the clutch and PS lever you will be able to see things move or not move. With a buddy moving the linkage and you watching how things
are operating on the trans one should be able to determine the cause of the problem, Rod.
 
Rod, out here in the rust belt, they are a 10-15 year item before they swell, get tight and ultimately brake.

Just like you hadn't seen a rusted out platform... Rust, high humidity, manure on boots all take their toll.
 
just a thought here but guys is he talking about a issue when the platform mounts wear and the stop bolt needs adjusted for proper spool travel? I have seen them act like what he describes if the pedal does not go full stroke due to iso-mount wear,, thinking out loud
cnt
 
(quoted from post at 07:27:27 03/24/17) Sorry to hear of the lose of your father. As for the problem at had I have been servicing these tractors for years and have yet to see a PS cable break, but perhaps
someone has. Normally they get so darn tight you can not hardly move them. All this clutch and PS linkage is very simple mechanical links. By removing the floor board
cover from the platform and operating the clutch and PS lever you will be able to see things move or not move. With a buddy moving the linkage and you watching how things
are operating on the trans one should be able to determine the cause of the problem, Rod.

Thank you Rod. You are one of the one's that Dad mentioned a lot.

To be perfectly honest I haven't even looked at the parts breakdown to see if I can see how it operates but I understand what you're saying. And to go a step further, it seems like the inching pedal should not cause the cable to break. I do know there has been problems with the throttle pedal sticking on that tractor, so I guess it could be a lot of debris in there causing problems.

We will pull the floorboard and look for slop and play in the linkage and give it a good cleaning. I imagine you have to do that much just to replace the broke cable anyway.

Thanks, Rory
 

Thanks CaseNutty, you have helped Dad in the past too.

I read through some archives last night before I posted the question and saw some talk about the cab mounts being wore out and letting the clutch pedal get out of adjustment. It wasn't related to a broken PS cable, but that thought crossed my mind when I was reading some old posts. I guess we'll check that too.

Seems like something about working the pedal and watching for proper travel of the spool valve...I think?

My uncle hasn't made mention of the range selector being any harder to operate by hand or anything like that...so I don't guess the cable itself was rusting up internally but maybe on the end.

We got a couple things to check while we are replacing the cable, I imagine the problem will show itself then.

Thanks, Rory
 
If the cable "broke" it will not do anything,, I also did not mention that I would do as you state first and pull the floor plate and pressure wash the whole top of the transmission as I have seen dirt/grease build up and stop the linkage from working freely and moving full stroke,, your throttle being sticky may just be the pin in the yoke on the throttle lever end in the RH console being seized in the yoke seen it here before
cnt
 
Thanks. The sticking throttle was the pedal sticking after getting packed with dirt and such over the years. I mentioned it because I can see how grime could get in under the floor board and start to cause mechanisms and such to freeze up...

Good advice by all. Thanks.
 

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