1. The process oil system shall include a 30 second timer.After 30 seconds from the time that the gate is opened, delivery of process oil to the dust rings will be shut off in order to avoid excessive oil accumulation in the mixing chamber.Process oil to the dust rings will restart only when the loading cycle signal is made (e.g.,pellets charging or conveyor charging). 2. Maximum dust ring operating temperature is 150 Deg C as outlined in GPR-E 10104. 3. To maintain proper lubrication to the dust rings, the lube oil system must start prior to starting the Banbury and delivery of the lube oil must continue until the Banbury is shut down.Approved dust ring lube oils are Codes Rickyine and Mixine.