@max a
You may want to contact a local clark dealer in your area to help you resolve your issue. You'll need them to order parts when you start restoring. Go to their website and you can find who they might be - clarkmhc (dot) com. Replace the (dot) with a. & close the spaces. This site will strip out the exact web name. Clark has been rebuild their dealers over the years but there still are some dealers that have a long history with Clark they will probably will be able to help you if you get some one with lots of gray in their hair or the Kojak look, wears bifocals & talks slow but surly - in other words not a mellennial
If the dealer isn't much help you can try to contact the headquarters in Lexington, KY- they may or may not want to help you. Some companies have a policy not to talk directly to an end user.
If you have pictures of this machine that might be of help - not certain how you can post them on this site but someone might be able to to give you instructions on how to.
Would suggest you start a new thread for your specific issue vs. one that was started 12 years ago.