Hi everyone, dark charcoal fluid packed with metallic particles indicates that severe worm gear scuffing and bearing race degradation are occurring under heavy batch surges.
Operating an asphalt conveyor drive with excessive shaft endplay forces the worm mesh out of alignment, generating extreme friction and risking total tooth shear. Do not restart the conveyor under load, as metal particles will circulate through internal oil channels and destroy the Cotta gear profiles.
Isolate the drive unit, drain the contaminated oil, and check for mounting flange distortion. Sending the assembly to experienced technicians for a thorough Hub City gearbox repair will restore exact shaft alignment and mechanical tolerances. You will secure uninterrupted plant output with a proper Hub City gearbox repair.
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