u/Fun-Restaurant-4644

I’m a forestry heavy equipment operator, more precisely on a 1999 cat 16h grader. My ac stopped working and all the heat from hydraulics goes straight in the cab, it can go up to 50 Celsius in there. If i open the doors i get all the dust from the gravel roads in, it’s been three shifts and I already cough like i never have with a lot of secretions. I also been way too close to having a heatstroke yesterday (extreme headache, stopped sweating and shivering in extreme heat) I don’t want to screw my health up because the mechanics don’t want to repair it, they said the machine works fine and I don’t need AC since i’m currently on the night shift(for this week, i do two week on day two weeks on night). I am seriously considering refusing to work, i’ve never missed a shift in 6 years of working here, i used to love my job but this situation makes it hard to appreciate work. So WIBTAH for refusing to work in these conditions?

Edit: I’m on my way to park it, i just saw 6 vehicles full with families inside, I can’t risk to make a mistake and have an accident with someone because i’m not mentally there or if i pass out. A 50k pounds machine doesn’t forgive against a pick up truck, it’s a beautiful weekend, I don’t want to ruin a family vacation or end someone’s life due to my workplace’s blatant ignorance of safety rules. It’s a huge safety concern of mine and every other road users, i’m in a prime spot for outdoors activities so there’s a lot of people on the road, i’m not taking the chance.

So i have been trying to do some sub 6 minutes laps with the group C corvette on the nurb but obviously i need to tune my car. I’ve never really understood how to do it efficiently and on the nordschleife, testing a tune can be extremely time consuming, is there a way to easily tune and see changes for a complete newbie. So far i’ve managed to hit the walls or do a 6:09 at best. I’m stuck and don’t have that much time to put into testing. The world record is a 5:41 so i know it’s possible to go under 6 minutes, i just don’t know how to reach it.
Edit: it wasn’t a 6:09 but a 6:19 a while ago, since then i can’t get under 6:30s, i wasn’t doing time trials but test days, i thought it was the world record with the car that was displayed but it’s the class record, i have so much to learn still… but going under 6 minutes in a group c is and will be my objective.