i. Improper adjustment of clutch or brake
The clutch or brake may not be fully engaging. Follow the manufacturer's adjustment procedure.
ii. Oil or contaminant on friction surface
Clean or replace the surface.
iii. Worn out friction components
Check the components to see if they are within tolerance. Replace if necessary.
iv. Worn linkage or parts used in engaging clutch or brakes
Sometimes, adjustment is adequate to compensate for wear. Check for obstruction and corrosion on moving parts. Clean or replace the parts as necessary. Check lubrication, and re-lubricate if required.
v. Too much torque
This may be caused by an increased load exceeds design capacity or poor initial selection of a clutch or brake. Check the machine to determine if the increased load is temporary or permanent. Repair or service may reduce the torque to acceptable levels, if not, the clutch or brake should be replaced with appropriate torque load capacity.
vi. High frequency cycling or high-inertia loads
Generally, these cases of excessive heat can be solved only by changing to a clutch or brake with greater heat dissipation ability. Sometimes a fan or blower may be used to increase air flow, thus cooling equipment. Less slipping time reduce heat, but make sure the engagement is not too sudden that severe shock loads are created in the machine.
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