Cat 977 Mayday (Blueox/Nige-help please!)

[oarwhat]

OUCH!

 

[jezow2010]

In the magnetic screen, it appears as if something spent some time in the transfer gears and ended up busting the transfer gear housing.

what do you mean transfer gear housing? Can you post more pictures? That does not look like any bolt I have seen come out of the trans...

 

[Nige]

That does not look like any bolt I have seen come out of the trans...

I may be wrong but the shape and depth of the head on it gives me the impression it could be some kind of stop. A shame that the photo doesn't show whether or not the head is domed in some way.

 

[tctractors]

I am not saying it is but it could be a bit off a brake band adjuster??? it looks nothing like anything I have seen in a transmission, there is no stop bolts that I can recall on the valve block??? also that is a big thread size at 7/8"?????

 

[Welder Dave]

Wondering if the other piece in the pic. is related to the bolt? The bolt has a definite groove under the head that might be for a C shaped (fork) piece of metal to fit around. A clip type retainer of some sort that holds something in place like maybe a part of a valve with a spring or spool that can't be directly bolted on?

 

[Dave Neubert]

A machine from that era is not likely to have quick connectors for testing, probably threaded plugs that will most likely be 1/4" either NPT or similar. You'lkl have to whip some of the p;lugs out and take a look. See the attachment. Don't go too far on this just yet, first get into the screen/magnetic filter and see what you find.

The ports on the valve body are 1/8 pipe

 

[Cliffy]

Operator wanted to knock off early?

 

[Cliffy]

Sort of looks like a lock bolt for a shift fork or the like. Its not designed to seat on the head. But 7/8?

 

[Nige]

I am not saying it is but it could be a bit off a brake band adjuster??? it looks nothing like anything I have seen in a transmission, there is no stop bolts that I can recall on the valve block??? also that is a big thread size at 7/8"?????

See #26 in the illustration below. 2M-7188 Screw. 7/8" NC thread x 6" long. If that's what's in your photo then she done broko, which raises the next question - where's the other piece.?

 

[Robert Boggs]

Nailed it Nige!! I can definitively say that’s it. Now I just need to determine where the other 4 inches is and if it’s been riding in there a while, or the root cause of the current tragedy. Thanks all, you’ve been a huge help!

 

[Nige]

Thank Tony (@tctractors). He was the one who suggested to look in the brake adjuster.

 

[Dave Neubert]

could be a old break down does the machine brakes work if so its parts left over from a old repair

 

[Robert Boggs]

Thank Tony (@tctractors). He was the one who suggested to look in the brake adjuster.

Thanks sir, for making me reread the thread, I was in a hurry and over looked tctractors comments. Thanks Tony, much appreciated!!

 

[Robert Boggs]

could be a old break down does the machine brakes work if so its parts left over from a old repair

Thanks for all the help sir, much appreciated. I’m thinking along the same lines. I plan to jerk the covers over the weekend and hope to see both adjustment bolts intact. Looking good so far, we got the trans stripped down to the drums today and everything looks good except the transfer gear housing area. The lubrication system is a brilliant design for the era IMO and I think it protected the remainder at this point. If anyone has some transfer gear parts available please IM me. Most interested in a 9M2060 case. Thanks!

 

[Robert Boggs]

Hoping to help someone else down the road.