Thanks for replying.
I’ve used them loads in the past. Replaced tyres on my ISF, RCF, C63 and just this week, my S3.
I got the impression that as the last job of the day (1930), he wanted any excuse to exit. Within seconds of arriving he said “This is going to be the hardest job of the day”..
With that sort of attitude I wasn’t going suggest Google, YouTube or reading the manual.