1、 Daily maintenance (after daily use)

1. cleaning equipment
   • Remove residual materialsUse a brush or compressed air to clean the feed residue in the crushing chamber, sieve, inlet and outlet to avoid mold growth or blockage.
   • Wipe the bodyWipe the device casing with a dry cloth to prevent dust accumulation from affecting heat dissipation.
   • Check for leaksObserve whether there is any leakage or oil leakage in the connecting parts (such as bearings and seals), and tighten or replace the seals in a timely manner.
2. Inspect vulnerable parts
   • Screen stateCheck if the screen mesh is damaged or blocked. Damaged mesh may cause uneven particle size and needs to be replaced immediately.
   • Hammer wearObserve whether the edge of the hammer blade becomes dull or broken. If the wear exceeds the limit (such as reducing the thickness by 1/3), it needs to be replaced, otherwise it will affect the crushing efficiency.
   • Belt tensionCheck if the drive belt is loose or cracked, adjust the tension to the appropriate range (press the belt down by about 1-2cm with your hand).
3. Lubrication maintenance
   • Bearing oilingAdd an appropriate amount of lubricating grease (such as No.3 lithium grease) to the spindle bearings before daily work to reduce wear and heat generation.
   • chain lubricationIf the equipment has a transmission chain, spray oil or chain specific lubricant to prevent jamming.

2、 Regular maintenance (weekly/monthly)

1. deep cleaning
   • Disassemble the screen meshRemove the screen mesh and clean it weekly to remove embedded fibers or hard objects.
   • Clean the air ductCheck if the dust removal duct is blocked, use tools to clean the accumulated dust, and ensure smooth exhaust.
2. Component inspection and replacement
   • Bearing inspectionUse an infrared thermometer to check the bearing temperature every month (normally below 65 ℃). Abnormal temperature rise may require bearing replacement.
   • Motor inspectionCheck if the motor wiring is loose and if the insulation resistance meets the standard (measured with a megohmmeter, it should be ≥ 0.5M Ω).
   • fastening boltCheck if all connecting bolts are loose, especially the fixing bolts of the crushing chamber and the bolts of the motor base.
3. Transmission system maintenance
   • Belt pulley alignmentCheck if the pulley is coaxial, excessive deviation can accelerate belt wear.
   • Gearbox oil changeIf the equipment is equipped with a gearbox, replace the gear oil every 3-6 months (choose the oil according to the instructions).

3、 Seasonal maintenance

1. Summer high temperature protection
   • heat dissipation optimizationClean the dust on the motor cooling fins and ensure that the ventilation openings are unobstructed.
   • Moisture prevention measuresIn a humid environment, wipe the inside of the equipment with a dry cloth after work every day to prevent metal parts from rusting.
2. Winter antifreeze maintenance
   • Drainage treatmentIf the equipment has a water cooling system, drain the cooling water when it is stopped to prevent the pipeline from freezing and cracking.
   • Preheating startUnder low temperature conditions, let the motor idle for 5 minutes before starting, and wait for the lubricating oil to flow before loading the material.

4、 Long term shutdown maintenance

1. clean
   • Disassemble all detachable components (such as screens and hammers), rinse with clean water, air dry, and apply rust proof oil.
   • Clean the interior of the crushing chamber to ensure there are no residual materials.
2. anti-corrosion treatment
   • Spray anti rust paint or apply butter on metal surfaces such as frames and bearing seats to prevent rusting.
   • Store the equipment in a dry and ventilated room, avoiding direct sunlight and rain.
3. Regularly start
   • During long-term shutdown, start the equipment and idle for 10 minutes every 2-3 weeks to maintain component flexibility.

5、 Safety precautions

1. Pre-operation check
   • Ensure that safety devices such as protective covers and safety switches are in good condition, and it is strictly prohibited to operate them with defects.
   • Check if the power cord is damaged and if the grounding wire is reliably connected.
2. Monitoring during operation
   • Do not insert your hands or tools into the feeding port to avoid getting involved in accidents.
   • Equipment abnormal noise, such as metal impact sound, may indicate that the hammer blade has fallen off or the screen mesh is damaged, and the machine should be stopped immediately for inspection.
3. Maintenance standards
   • When replacing the hammer or sieve, the power must be cut off and a "Do not close" warning sign must be hung.
   • Use original accessories to avoid equipment damage or safety accidents caused by mismatches.

6、 Maintenance records and spare parts management

1. Establish and maintain archives
   • Record the maintenance time, replacement component model, and equipment operating parameters (such as current and output) for easy analysis of equipment status.
2. Spare parts inventory management
   • Reserve commonly used vulnerable parts (such as screens, hammers, belts) to avoid production stoppage due to missing parts.
   • Regularly inventory spare parts and replenish consumables in a timely manner.

Common faults and troubleshooting methods

Through systematic maintenance and upkeep, the feed crusher can maintain optimal working conditions, reduce failure rates, and lower energy consumption and maintenance costs. It is recommended to develop a personalized maintenance plan based on the equipment manual and actual usage, and train operators to master basic maintenance skills.