Jump to content
dalez

C-85 jumps out of gear

Recommended Posts

dalez

Jumps out of gear when going downhill and using transmission to hold back tractor.

Cleaned the inside when I got it and nothing slapped me in the face as being wrong when I had it apart. Not that I would spot anything except maybe a broken part. 

Any idea what I'm looking at or where to start.

Thanks

Share this post


Link to post
Share on other sites
 
Pullstart

Let’s get a baseline.  What gear are you in?  Any gear?  Third gear? (Most common) only down hill, or what about up hill with a heavy load?

Share this post


Link to post
Share on other sites
 
The Tuul Crib

I have the same issue up and down 

hill with my 414

Share this post


Link to post
Share on other sites
 
dalez
11 hours ago, pullstart said:

Let’s get a baseline.  What gear are you in?  Any gear?  Third gear? (Most common) only down hill, or what about up hill with a heavy load?

Low range 2nd gear. May do it in other gears but haven't tried to test it. Uphill no.

Share this post


Link to post
Share on other sites
 
Pullstart

Have you made sure the gear shift lever is all the way in gear?  I wonder if moving down hill it is matching the engine rpms with transmission speed and it wants to detent back to neutral?  What kind of shape is your fluid in?  

Share this post


Link to post
Share on other sites
 
dalez
1 hour ago, pullstart said:

I wonder if moving down hill it is matching the engine rpms with transmission speed and it wants to detent back to neutral?  What kind of shape is your fluid in?  

This kinda makes some sense. Like shifting without a clutch when you match the rpm with the tranny. Fluid is new.

  • Like 1

Share this post


Link to post
Share on other sites
 
stevasaurus

Pullstart is on to what is happening.  We are talking a 1/4" ball bearing in a groove in a shift rail holding back 400 to 500 lbs of horse plus about 200 lbs of human with a belt drive.  Popping out of any gear is going to happen.  Question is, is it popping out of low range or is the trans popping out of 2nd gear.  Going down hill is dangerous, try going up in 1st gear.  If it goes up hill OK...the détente balls are the issue.  It is possible that they are worn a little, it could also be a weak détente spring.  Even if you change out those items, you still may have the same problem.  :orcs-cheers:

  • Like 2

Share this post


Link to post
Share on other sites
 

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now

×
×
  • Create New...