K 2500 Truck 4WD L6-292 4.8L (1985)
Information Label
2.
Place a belt tension gauge J-23600-B or equivalent, midway in the drive belt No. 4 (Figure No.2).
3.
Adjust No. 4 drive belt so that the tension on the belt is 250 Newtons (56 pounds).
4.
Finger tighten the two A.I.R. pump bolts, while maintaining belt tension.
5.
Torque the A.I.R. pump pivot and adjustment bolts to 33 N-m (24 ft.lbs.).
6.
Inspect the belt tension and remove belt tension gauge.