I'm trying to remove one of the rear brake chamber assemblies from my M931 and I'm having difficulty getting it loose. I tried using a punch to loosen the lock nut (#10 in the diagram) without success. There's not much room to work on the inside of the brake backing plate.
Before I get too aggressive with it and do some damage I thought I'd ask if anyone has a good technique. Is there a special tool for the lock nut? If the tube was a little heavier I'd put a pipe wrench on it but I'm afraid it would just crush it.
I'ts probably been in place for 30 years so there's likely a little rust.
Thanks
![M9310001.jpg M9310001.jpg](https://www.steelsoldiers.com/data/attachments/393/393520-d468995bb3751da8bfccfd79351236a7.jpg)
Before I get too aggressive with it and do some damage I thought I'd ask if anyone has a good technique. Is there a special tool for the lock nut? If the tube was a little heavier I'd put a pipe wrench on it but I'm afraid it would just crush it.
I'ts probably been in place for 30 years so there's likely a little rust.
Thanks
![M9310001.jpg M9310001.jpg](https://www.steelsoldiers.com/data/attachments/393/393520-d468995bb3751da8bfccfd79351236a7.jpg)