Description

Definition:
The Clutch Cover 679995, also known as a clutch pressure plate assembly, is a critical component within the clutch system of a Claas combine harvester. It is a spring-loaded module that bolts directly to the engine’s flywheel, forming the driving member of the clutch assembly.

Primary Functions:

• Clamping Force Generation: Its core role is to generate and apply a powerful, uniform clamping force. Using a heavy-duty diaphragm spring, it presses the clutch disc firmly against the engine’s flywheel. This creates the friction necessary to transmit engine torque to the transmission input shaft.

• Power Transmission Engagement/Disengagement: It is the active component for engaging and disengaging power. When the operator activates the clutch, the release bearing presses against the cover’s spring fingers, which releases the clamping force on the disc. This temporarily interrupts power flow, allowing for gear changes or a temporary halt in propulsion.

• Secure Housing: The cover serves as a robust, sealed housing that protects the internal spring mechanism, pressure plate, and release levers from contamination by dust, chaff, and other abrasive debris common in agricultural environments.

• Heat Management: Designed to withstand intense thermal loads, the cover assembly absorbs and dissipates the significant heat generated by friction during clutch engagement and slippage, preventing damage and maintaining consistent performance.