Daily / Per Shift
- Operational Monitoring: Check motors and reducers for abnormal noise or overheating (motor temperature rise should typically not exceed 80℃). Listen for any unusual sounds from bearings and gears.
- Core Component Inspection: Focus on idlers for seizing or detachment, check drums for excessive material buildup, and ensure cleaning scrapers are not severely worn.
- Belt Condition & Tracking: Observe if the belt is tracking off-center and inspect the belt surface for any new cuts, gouges, or tears.
- Standardized Operation: Strictly follow the "start with no load, feed evenly, stop after emptying" procedure. Never start the belt under load.
Weekly
- Tension & Elongation: Check if the belt tension is appropriate (too loose causes slippage; too tight accelerates wear) and measure belt elongation via the tensioning device.
- Splice Inspection: Closely examine belt splices for any signs of cracking, ply separation, or abnormal wear.
- Fastener Check: Inspect bolts on the frame, drive units, and tensioning devices. Tighten any loose fasteners immediately.
- Loading Point & Sag: Check the loading point for off-center loading or excessive impact, and observe if the belt sag between idlers is within normal limits.
Monthly / Quarterly Lubrication
- Idler Bearings: Under frequent use, clean and grease them every 3 months.
- Reducers/Gearboxes: Check oil levels and top up or replace lubricating oil as per the manual (usually involves a deep check and oil change monthly or quarterly).
- Wear Measurement: Systematically measure the overall wear of the conveyor belt (e.g., cover rubber thickness) and record data to assess service life.
- Electrical & Safety Tests: Test safety devices such as emergency stop buttons, pull-cord switches, and misalignment protection to ensure they are sensitive and effective.
- Inventory Care: If there are spare belts, ensure they are stored in rolls and turned over quarterly to prevent aging and deformation.
Semi-Annual / Annual Overhaul
- Comprehensive Lubrication Update: Thoroughly clean and replace the oil in core transmission components like reducers (typically recommended during a semi-annual minor overhaul).
- In-depth Inspection: Clean and grease drum bearings, inspect the drum lagging for aging and wear, and repair or replace if necessary.
- Precision Calibration: Check and calibrate drum concentricity and frame straightness to prevent long-term tracking issues caused by structural deformation.
- Wear Parts Assessment & Replacement: Based on annual wear records, replace severely worn idlers, cleaner blades, or the entire belt if it has reached its replacement limit.
