Power Assisted Steering Pump & Belt
To tighten up the belt slacken off the shaft bolts, located behind the pully, undo the tension securing bolt, then push up the lever adjustment with any device. As seen I used a spanner. Then secure the tension securing bolt.
To remove the belt undo in the reverse order. I found the pump would not move enough to take off the belt. So I had to remove the shaft bolts completely!
Note the crocodile teeth belt