1997 940 B230FK
The belt is a genuine Volvo one but I don't know how old.
Here are some photos of the belt and adjuster.
Volvo 940 power steering by
Luke Ryland -
Flickr2BBcode LITE
Volvo 940 power steering by
Luke Ryland -
Flickr2BBcode LITE
Volvo 940 power steering by
Luke Ryland -
Flickr2BBcode LITE
Volvo 940 power steering by
Luke Ryland -
Flickr2BBcode LITE
The adjuster works so far as that once the mounting bolts are slackened I can see the adjuster winding the alternator in/out.
This one has me stumped as I can't understand how it is moving as once the securing bolts are tightened it shouldn't move and if it did move I would have thought it would go loose not tighten!