Can't find the belt adjustment.

[Carl Haymes]

I have a F800 whose alternator belts went off last week. Picked up new belts and I found that there is no adjustment on the air pump? It’s gone. I can't find where it can be moved, to adjust the belt? Anyone knows about the belt adjustment on the air compressor? Or do I have to take it for a truck repair?

[txab]

So you're asking about a Ford F800 on a GM website?