Broken cable stay, Cat double drum dozer

TexasRanch

New User
Hello all,
I am new to this forum and have a problem with my D7E high horse cable dozer. I have a double drum for the cable winch and one of the stays broke off. This is a small metal loop that secures the end of the cable to the drum. Now the drum is smooth and I do not know where to begin the repair. I assume I do not want the cable end firmly fixed, but that it needs a little play, since that is what the old system allows.
Will I be able to rig a fix to this drum?
Am I going to have to replace the drum?
If so, where would I find another drum?
Anybody else had this problem?
Thanks in advance for taking the time to help me get this machine back in action.
 
I cannot remember any Cat cable control unit having anything else but a pear shaped wedge to hold the cable to the drum,post a picture of yours,the drum has a triangular slot,the cable is pushed in from the narrow end,turned around in a loop and pushed back out,the pear is put in the loop and pull the cable tight,the working pull on the cable keeps the pear in place,if that's not what you are talking about post a picture,you may have a LeTourneau CCU .
AJ
 

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The top drum is intact and rusty (it was not being used at the time). I will take some pictures of the whole unit and get a serial number if that helps.
Again, thank you for looking at this post. http://forums.yesterdaystractors.com/photos/mvphoto18470.jpghttp://forums.yesterdaystractors.com/photos/mvphoto18471.jpg[/img:a4db3ac1e3]
mvphoto18472.jpg
 
A heavy equipment welder will repair that for you,it was a common problem,we used to cut out our own pears from a flat sheet,I forget what thickness,the welder will know if he is experienced he will have come across the problem before,if the other drum works ok you could use it instead,you would only need the two if you are hooking up to a scraper.
AJ
 
AJ,
OK, thanks for the advice.
I will give the welder a call. Hopefully, he has seen it before, although we do not run a lot of these antiques here. (All of the professional operators want an airconditioned cab!).
I did not realize this break was a common problem. It only happened to me recently when the blade dropped off a cliff.
I still have the pear shaped piece and can reuse it, unless you think a newer, heavier piece is preferable. But of course, it was not a failure of the pear, but of the sheet metal part of the drum.
We often need both cables;
We usually run a root plow in back with a rake in front, to help us deal with the ubiquitous mesquite trees in Texas. Currently though, I am building a pond and could switch sides, but I would have to reroute the pulleys, etc. This broken drum is on the same side as the tube that carries the cable to the front of the dozer.
Again, thanks for the direction.
Texas Ranch
 
What happened was that the blade dropped lower than normal and had pulled the cable too far so all the strain was on the pear socket and it broke,in the day we always laced the cable so there would be a couple wraps around the drum when the blade was at its lowest,some people used a short check cable between the blade and the top sheave bracket to stop it going down too far.
AJ
 
Thanks, I will add a check cable. We had a few turns around the drum, but came to a cliff that was lower than a few turns. Operator error "ID10T".
Our motto here is: "We'll be better next time!"
Have not gotten it welded yet; my day job keeps getting in the way of all my fun.
I appreciate your help.
 

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