Abstract: An adjusting tool by which the adjusting ring of a clutch assembly can be rotated respective to the clutch cover. The tool is attached to the clutch cover at the access hole. Part of the tool engages the circumferentially extending spaced lugs formed near the outer periphery of the adjusting ring. The tool has gear teeth of a configuration to mesh with the spaced lugs on the ring and to drivingly engage and rotate the ring when the shaft is rotated about the longitudinal axis thereof. A mounting fixture is removably attached the cover access hole with the drive gear device extending into the access hole and into engagement with the lugs of the ring so that the wrench engaging means can be engaged with a suitable wrench and the ring rotated respective to the housing to thereby adjust the spring tension on the clutch assembly.