DEFINITION: A noise occurs in the universal joint.

The universal joint bearings are worn.

Replace the universal joint. Refer to Universal Joint Replacement - Nylon Injected Ring or to Universal Joint Replacement - External Snap Ring .

Loss of lubricant

Replace the universal joint. Refer to Universal Joint Replacement - Nylon Injected Ring or to Universal Joint Replacement - External Snap Ring .

Loose flange bolts

Tighten the flange bolts to specifications. Refer to Fastener Tightening Specifications .