Well I have a good old blue ryobi 18v drill that now runs on the lithiums. The gearbox/speed adjuster seems to be getting crazy hot even if it’s not under heavy load (Eg just using it for screws) I’m guessing arround 60-70 degrees (based on it doesn’t sizzle water and it’s as hot as the valve on my hot water (which is set at 60-70)) Now I do have other ryobi 18v drills but this is my only hammer one. Plus it has 2 built in spirt levels which are supprizing handy. Is it fixable or anything I can have a squizz at. As it stands I have zero to loose.