4. Standard operating procedures

The operator’s working methods directly impact both equipment service life and personnel safety, requiring strict adherence to operational protocols. Normal use requirements of air supported belt conveyor：

（1）Always start fan before drive motor. When you stop the machine, please make sure to stop the drive motor before you stop the fan.
（2）After startup, operate empty until system stabilizes, then maintain steady feed rates without sudden increases or overloading.
（3）Unless under special circumstances, do not stop the equipment under load. Typically stop feeding first, then shut down after material clears. For startup after emergency stop during full-load operation, it is necessary to jog the equipment several times or discharge an appropriate amount of materials from the tank first with auxiliary drive motor.
（4）For conveyor systems: Start from final unit → proceed upstream sequentially. Shutdown sequence reverses this order. Electrical interlock control may alternatively be implemented.
（5）Overloading is prohibited.
（6）Strictly prevent ferrous objects, oversized hard materials or foreign matter from entering the conveyor system to prevent equipment damage or accidents.
（7）Maintain proper lubrication for all bearings and drive components.
（8）Ensure safety alarms remain fully functional.
（9）The access to emergency stop switches should be free of obstructions, and these switches should be checked regularly to make sure that they are in good condition.

4.1 Operational precautions

（1）Only qualified personnel may adjust drives, air systems or safety devices.
（2）During the operation of air supported belt conveyor, prohibited activities include: manual cleaning of belt/pulleys/rollers, component replacement/disassembly, and lubrication maintenance.
（3）Unauthorized operation of safety monitoring devices is strictly prohibited.
（4）Operators shall conduct routine patrol inspections during operation, closely monitoring the operating conditions of the air supported belt conveyor. Critical monitoring points: Monitor: drive system operation; motor temperature/noise (drive/fan); reducer oil level/noise; belt runout/damage; bearing temperature/noise; funnel blockages; pulley/roller/cleaner/take-up operation; electrical control status.
（5）Operators must document any abnormal operation of the air supported belt conveyor and execute immediate shutdown in emergency situations.

5. Maintenance requirements

Scheduled maintenance extends conveyor service life, with proper belt tension being critical for safe operation. The user should establish a sound system of regular inspection and maintenance:

Maintenance schedule: monthly minor servicing; semi-annual/annual major overhauls (adjustable based on operating conditions).

5.1. Minor servicing includes:

（1）Inspection of the worn-out situation of belt, and repairing its damage.
（2）Gearbox oil replenishment/replacement (per manufacturer specs).
（3）Inspection of the worn-out situation of pulley rubber surface, and repairing any damage if any.
（4）Check the pulleys’ welding parts to see if there is any crack, and if yes, take measures to repair it.
（5）Replacement of pulley bearing relubrication.
（6）Replace severely worn cleaner scraper and roller rubber rings.
（7）Take-up travel and protection devices inspection/repair.
（8）Replacement of severely worn liners.

5.2. Major overhauls include:

（1）Inspection of each reducer item according to the instruction manual, and disassembling, cleaning and replacing severely worn-out components if any.
（2）Inspect drive pulley rubber surface wear – replace lagging if excessively worn.
（3）Replace those pulleys on which body there is any big crack that is difficult to repair.
（4）Check and clean all bearings and their bases, and repair or replace those damaged parts if any.
（5）Check the deformation of all racks and whether there are any cracks on the welding seams, and repair them according to the situation.
（6）Repair or replace the belting according to the situation.
（7）Replace the liner at the material impact place which is seriously worn.
（8）Worn cleaner scraper replacement.
（9）Conduct comprehensive testing of electrical controls and protection devices – replace any with faulty components.

6. Daily inspection checklist

6.1. Pre-startup checks

（1）First, contact the on-site personnel to confirm that the site is safe and normal.
（2）Check the wear conditions of all parts such as the head and tail wheels and all rollers, and whether there are any loose or missing rack fixing bolts.
（3）Check the lubricant condition of each transmission part, and whether all protection devices are safe, effective and in good condition.
（4）Inspect for: foreign objects on belting; blockages (oversized materials/ferrous objects) at discharge chute; chute wear condition.

6.2. Operational inspections

（1）Monitor uniformity and stability of air cushion beneath belts.
（2）Inspect the feeding point to see if it is in the center of the belt, and check whether the belt has any runout.
（3）Listen for abnormal noises/vibrations and monitor temperatures in motors, reducers and pulleys.
（4）Routinely check whether there are any blockage and caking issues at the feed opening of the rubber belt.
（5）Verify all rollers rotate smoothly.
（6）Inspect skirtboard sealing strips for wear/leakage and adjust promptly when needed.
（7）Verify cleaner integrity and effectiveness – prevent residual material from reaching tail pulleys to avoid belting and pulley surface wear.
（8）Inspect all lubrication points (primarily the reducer) for leaks – report immediately and address during scheduled maintenance.

6.3. Post-operation checks

（1）Check belts for cracking/fraying along edges.
（2）Check the condition of the cleaners and make adjustments as needed.
（3）Inspect all structural connections including frame bolts for looseness.
（4）Replace any rollers that do not run smoothly.