Need some help. On my Toyota fork lift there is that round bar stock on the carriage that should stop about 1/4 inch from hitting the mast stop when raising the forks. You Toyota guys know what I'm talking about. Well my round stock is hitting the stop. I'm worried the stop will get broken off. How do I adjust to make a gap between round stock and mast stop? Assuming with free lift chains? Any help would be appreciated.