For Model 560 pellet mill as an example

To ensure stable operation of the transmission system, reduce gear wear failure rate and extend the pellet mill service life, follow these professional specifications strictly:

Oil Selection & Filling Quantity Control

Use CTC320 industrial enclosed gear oil only. Never mix oils of different grades or types, which may cause tooth surface scuffing, pitting corrosion and other faults due to mismatched viscosity and extreme-pressure anti-wear performance. The rated filling quantity of the pellet mill is 80kg. Ensure accurate filling: insufficient oil leads to inadequate lubrication and gear dry grinding; excessive oil increases transmission resistance, causing abnormal oil temperature rise and seal leakage.

Accurate Oil Change Interval

Change oil for the first time after 500h of cumulative operation for a new pellet mill to remove metal debris and iron filings generated during running-in. After the first oil change, change oil every 1500h of cumulative operation thereafter. Establish an equipment operation record to track the pellet mill running hours accurately. Never use oil beyond the service period.

Cleaning Requirements for Oil Circuit & Filter System

Thoroughly clean the oil circuit and filter system of the pellet mill before each oil change. Dismantle the oil passage filter screen and hydraulic filter element, and flush residual impurities in the oil passage with clean gear oil of the same model. Replace blocked, deformed or damaged filter elements with new ones immediately; reuse is prohibited. Confirm no blockage or residual impurities in the oil circuit after cleaning to prevent secondary pollution of new oil.

Standard Oil Change Operation

Perform oil change after the pellet mill stops and cools down to below 40℃ to avoid scalding from high-temperature oil splashing. Drain all used oil completely with no residue left in the oil sump. Use a dedicated oil filling device with an oil filter screen to add new oil, preventing external impurities from mixing into the oil.

Regular Oil Condition Monitoring

Check oil level, color and impurity content regularly during the pellet mill daily operation. Quantitatively test oil viscosity, acid value and metal content with an oil detector if possible. Stop the pellet mill immediately for inspection if the oil turns turbid and black, emits pungent odor or has metal debris deposits at the bottom. Change oil in advance and check the transmission system for abnormal wear.

Proper Disposal of Waste Oil

Waste gear oil of the pellet mill is industrial hazardous waste. Collect it in sealed containers and hand it over to qualified professional institutions for disposal. Never dump it randomly or mix it with other waste.