Troubleshooting and Repair Guide for Common Problems in Plastic Bottle Baling Machines
I. Common Problems and Solutions
1. Material Jamming or Poor Feeding
Causes: Foreign object blockage, sensor malfunction, or loose drive belt.
Solution: Clean debris from the conveyor belt after stopping the machine and disconnecting power; check if the photoelectric sensor is misaligned or dusty; adjust the drive belt tension.
2. Insufficient Pressure Leading to Loose Bales
Causes: Insufficient/deteriorated hydraulic oil, aging cylinder seals, or clogged solenoid valve.
Solution: Replenish or replace with 46# anti-wear hydraulic oil; replace cylinder seals; clean the solenoid valve filter.

3. Abnormal Noise
Causes: Bearing wear due to lack of lubrication, poor gear meshing, or loose fasteners.
Solution: Add high-temperature grease to the bearings; adjust gear clearance; check and tighten bolts.
4. Control System Malfunction
Symptoms: Touchscreen unresponsive, program malfunction.
Solution: Check if the PLC wiring terminals are oxidized; restart the system; update the control program. II. Maintenance Recommendations
1. Clean residual material from inside the machine after each day’s work; check the hydraulic oil level weekly.
2. Replace the filter element every 500 hours; change the hydraulic oil every 2000 hours.
3. Regularly lubricate moving parts such as guide rails and chains.
4. During the rainy season, take precautions to prevent moisture damage to the control cabinet and avoid short circuits.
Safety Tips: Always disconnect the power supply and release the hydraulic system pressure before maintenance. Never operate with power on. For complex electrical faults, contact a technician. Proper daily maintenance can reduce the failure rate by more than 60% and significantly extend the equipment’s service life.

Nick mechanical hydraulic baling machine is specially used in the recovery and packaging of loose materials such as waste paper, waste cardboard, carton factory, waste book, waste magazine, plastic film, straw and other loose materials.
https://www.nickbaler.com
Email:Sales@nkbaler.com
WhatsApp:+86 15021631102
Post time: Dec-11-2025