Slightly, I have the manual and have seen some threads on here but certainly not confident. It rises on its own when the master clutch is pulled back. I assume the clutches in the ccu need adjusted possibly the brake as well. I know not to do adjustments while it's running. At this point I'm hoping something just stuck in the clutch and will break free by raising and lowering it a few times since it didn't have the issue prior to it be hauled to my house but after all my other problems that's probably wishful thinking.

Hi, V14.
First question: How much free travel do you have at the end of the control lever for the blade? If you have the 'more-or-less' standard Cat double drum CCU, you should have about 5 1/2' of free travel

2. Does the blade still come up upon engaging the master clutch is engaged when the blade control lever is pushed all the way out into the float position? If so, and if you have that 5 1/2" free travel mentioned above, the clutch plates in the CCU are probably stuck together.

These videos might help:



This guy DOES NOT know what he is doing. He is "flying blind".



The correct procedure is:
1. Test the brake to see if it will hold the blade in a raised postion. If it will, leave it alone. If it won't, tighten the brake spring via the colletted nut on the front end of the spring until it does.

2. Adjust the brake control lever via the long threaded rod with the two nuts until the index hole in the lever aligns with the center of the roller above it. If said control lever is smothered in grease-n-dust, you will need to scrape that off to see the index hole which is in the section of the arm that the roller contacts, about 1/2-way along it and close to the roller running face. (Note: Adjusting this threaded rod does NOT adjust the brake tension. It ONLY adjusts the 'neutral' position of the control lever.)

3. THEN, adjust the clutch as shown in the video until you have that 5 1/2" of free travel.

Hope this helps.

Just my 0.02

Those steps and videos will be helpful, I have a no. 25 unit so I believe the free travel should be as you stated. As for your questions, I can't answer them yet. I only had the big engine turned over one time to get it off the lowboy, it's been sitting since then. I also did not operate it to get it off, the driver did and neither him nor I are experienced with cable blades. 

I haven't asked about operating it because I have been trying to find a operators manual for the no. 25 but no luck so far and there isn't one in the technical library. It may not even have an issue and could have been operated incorrectly. I have seen some videos, looks like pull and hold once raised to the desired height push all the way out to drop it. If I recall correctly it raised even when the lever was pushed as far as it will go. Could be free travel adjustment. Will note that the blade stayed where it needed to be when the main clutch wasn't pulled in so I think the brake holds fine. I'll hopefully have more info later today after the oil cooler install is wrapped up and can start it again.

Check the serial number but this should work....
www.ebay.com/itm/224456940328?hash=item3...tkp%3ABk9SR5SD7IexYg
Caterpillar no 24 Cable Control Operators Manual & Maintenance Instructions Book | eBay

This one just popped up as well, is there a difference between installation and operating vs operations and maintenance? I was thinking the one you linked wasn't what I needed but they may be the same titled different.

www.ebay.com/itm/334412050870?mkcid=16&m...er=artemis&media=SMS

Yes that will work for the rear unit. Maintenance will have the adjustments in it.

New cooler is on there now way nicer than the old one. I thought my inlet may not be tight enough and after starting it up and running for a few minutes I saw oil pressure drop so I shut her down. Of course the hardest nut to turn need tightened more but I'll get to that tomorrow and should be good. Was happy that the carb issue did not return, pony started up easy and the big engine turned over easy as well after letting it warm up.I attached a couple videos as well of the ccu issue for deas hopefully that can answer the questions you asked earlier. The brake may be a little too tight since the last time I lifted it it went down extremely slow.

Videos didn't attach will see if it works on this post.

Edit: looks like mp4 files aren't supported so I can't add the videos unless someone knows a way.

Edit 2: converted one to a gif still trying the other but it's longer so may not work.

Gif number 2, sorry if they are choppy and small, best I can do without uploading large mp4 files.

Hi, V14.
Is the blade going down without you moving the control lever to lower it? If so, your brake spring is not tight enough - see the instructions above.

If the blade is raising when you engage the master clutch without you moving the control lever, either the CCU clutch is adjusted too tight or the clutch plates are stuck together. If you don't have around 5 1/2" of free travel at the end of the blade control, your CCU clutch is adjusted too tight. Again, see the instructions above and the videos.

Edit - Upon looking at your video again, I saw that hand 'sneaking' out and pushing the control lever all the way to the float position. The blade should drop like a rock. I'd guess that either your CCU clutch is adjusted too tight or the plates are stuck together, maybe with grease and/or oil.

Just my 0.02