Air Injection: Adjustments

Belt Tension Check:

NOTE: This belt system has a drive belt tensioner that can be mis-installed if the pivot bolt is cross-threaded in the generator mounting bracket or bent. This can result in an out-of-sheave line condition of the belt idler pulley.

^ Check that the end of the tensioner spring is looped around the spring stop in the generator mounting bracket and can provide the 60 pound nominal Output (± 15%).
^ Check that the routing idler bolt is not cross threaded and is tightened to 46-63 Nm (34-46 ft lb).
^ Check that both the drive belt tensioner and belt idler pulley are parallel to each other and the sheave line.

NOTE: The belt tension can be checked as follows:

^ Install a closed end wrench on the tensioner pulley bolt and rotate the tensioner arm to relieve all tension from the drive belt. Slowly return arm to rest against the drive belt and measure belt tension.
^ Rotate arm against drive belt causing the drive belt tensioner to deflect approximately 1/2 inch from its rest position. Slowly release tension from arm and measure belt tension.

Belt Length Indicator:

^ Average the two tensions and verify that result is above the minimum tension. Tension is OK if tensioner is within indicator marks, 418 Newtons (94 lb) Minimum.