I just picked up this M101A2 trailer. The handbrake needs adjustment, I looked up the procedure online and my handbrakes appear to be different. The knobs at the end of the levers are not knurled, they don't seem to rotate. I checked for a lock screw buried under the paint, none. I tried searching these forums but no luck. I sprayed Kroil on all the internals in the lever, still no luck. Is anyone familiar with these that can help me figure this out. Thank you.
https://flic.kr/p/2k9nQdk https://flic.kr/p/2k9nRPM https://flic.kr/p/2k9nSNa
https://flic.kr/p/2k9nQdk https://flic.kr/p/2k9nRPM https://flic.kr/p/2k9nSNa