A dumper truck driver was told to carry on working with no air con, he later went on the rampage smashing in to police cars, 14 months prison was the final outcome .
He was on drugs apparently hence he was feeling hot!
I’d take it round to the geezers house, to give him the option of fixing it.
I would be amazed if that thing ever had air con.
It is older than time. 
HDL:
I would be amazed if that thing ever had air con.It is older than time.
Not a problem having an old A25 or A30, they run and run and still do the job they were built to do. Early to mid '90s model I’d say, it’s got the more modern front and tipper body than I drove at Sheehans and that was an F reg.
Air con was an option back then so it may’ve had it but long packed up I expect. Obviously being drugged up clouded his judgement but why didn’t he drive with the door open (there’s a locking rubber stop block), and then open the right hand sliding window.
A nice truck to drive those Volvos, way ahead of their time compared to Moxys and Aveling Barfords.