Gasboy 9100A - Manual (Page 55)

Start-Up
03/07/03 6-3
On the 9152ATW1 model, the belt can be tightened by loosening the cap screw which holds the
idler arm and sliding the arm to obtain the correct belt tension of 6-3/4 lbs. + 3/4 (30N, +3.3N).
When the adjustment is complete, remember to retighten the cap screw.