Detailed Maintenance Guide for Keyida Labeling Machines

I. General Maintenance Principles

• Safety First: Disconnect power, hang warning signs, and release air pressure before maintenance; live maintenance is strictly prohibited.
• Prevention Oriented: Adhere to hierarchical maintenance, including daily cleaning, regular upkeep, and timely repairs.
• Specialized Machine Use: Perform maintenance according to corresponding models; do not mix maintenance procedures.
• Recordable Tracking: Fill out maintenance records for each service to track equipment status.

II. Pre-Maintenance Safety Operation Specifications (Mandatory)

• Power Cut: Turn off the main power and air supply of the equipment, and unplug the power cord.
• Warning Sign: Hang a warning sign stating “Equipment Under Maintenance – Do Not Start”.
• Pressure Release: Release residual air pressure to ensure no pressure remains in the pneumatic system.
• Cleaning: Remove adhesive residues and debris from the equipment surface to maintain a clean working environment.
• Tools: Prepare special maintenance tools (lint-free cloth, alcohol, food-grade lubricant, wrenches, etc.).

III. Hierarchical Detailed Maintenance Procedures

(I) Daily / Shift Maintenance (After Each Production Run)

• Wipe the label feeding mechanism, label peeling plate, and pressing roller with a lint-free cloth dampened with alcohol to remove residual adhesive and paper scraps.
• Clean the label path to ensure no wrinkles, jams, or foreign objects.
• Wipe the equipment casing and touch screen to keep the machine clean and tidy.

• Check the label reel and tension for normality, ensuring no looseness or deviation.
• Inspect sensor lenses (SICK / Leuze) for dust or obstructions.
• Check pneumatic lines and hoses for air leaks or damage.
• Inspect the conveyor, chuck, and horizontal mechanism for foreign objects or jams.

• Run the equipment without load to check for abnormal noise or vibration and confirm normal operation.

(II) Weekly Maintenance

• Disassemble the label feeding head, pressing roller, and label peeling plate to thoroughly remove adhesive and oil stains.
• Clean all sensor lenses and calibrate sensitivity.
• Clean the surface of the electrical cabinet to remove dust and oil.

• Check servo motor cables for looseness or damage.
• Inspect timing belt tension; ensure proper tightness without slipping or deviation.
• Drain water and clean the pneumatic filter.
• Calibrate labeling accuracy to ensure deviation ≤ ±0.3mm.

• Apply food-grade lubricant (specially for high-speed models) to guide rails, bearings, and transmission parts.

(III) Monthly Maintenance

• Remove dust inside the electrical cabinet using compressed air (do not blow directly on circuit boards).
• Clean the label reel and transmission gears to remove oil and foreign objects.

• Tighten all screws, bolts, and connectors to prevent looseness or falling off.
• Inspect the equipment structure; ensure 304 stainless steel parts are free of deformation or corrosion.
• Check servo motor operating temperature, which shall not exceed 40℃.

• Calibrate sensor position, labeling position, and label output speed.
• Perform 50 consecutive test labels to verify accuracy and stability.

(IV) Quarterly Maintenance

• Disassemble, clean, inspect, and calibrate the patented label feeding mechanism.
• Check servo motors and drivers for abnormalities or malfunctions.
• Inspect the PLC and touch screen to ensure normal and smooth system operation.

• Check label peeling plates, pressing rollers, and belts for wear, deformation, or cracks.
• Inspect sensors and solenoid valves for normal sensitivity and proper function.

• Fully retest labeling accuracy, speed, and stability, and record data.

(V) Annual Maintenance

• Disassemble all moving parts, transmission parts, and pneumatic components for thorough cleaning and lubrication.
• Inspect the frame, rack, and 304 stainless steel structure for deformation, corrosion, or looseness.

• Replace expired wearing parts (label peeling plate, belt, sensor, etc.).
• Calibrate the servo system, label feeding mechanism, and labeling accuracy.

• Run the machine continuously for 8 hours to test accuracy, speed, stability, and failure rate.
• Issue an annual maintenance report to confirm equipment status.

IV. Special Maintenance for Core Components

1. Patented Label Feeding Mechanism

• Weekly cleaning, monthly calibration, and quarterly disassembly maintenance.
• Impact or scratches on the label peeling plate by hard objects are strictly prohibited; keep the surface smooth.
• Ensure synchronized label feeding, smooth label output, no label drifting, and no label breaking.

2. Sensor (SICK / Leuze) Maintenance

• Clean lenses weekly and calibrate sensitivity monthly.
• Blockage, impact, and oil contamination are strictly prohibited.
• Ensure accurate detection, no misjudgment, and no missed detection.

3. Servo Motor / Driver Maintenance

• Check temperature and cables monthly, calibrate parameters quarterly.
• Overload operation and foreign matter entering the motor are strictly prohibited.
• Ensure stable operation, no vibration, no noise, and consistent accuracy.

4. Touch Screen / PLC Maintenance

• Clean the screen daily and inspect the system monthly.
• Knocking with hard objects, oil contamination, and illegal operations are strictly prohibited.
• Ensure normal system operation, no lag, no crashes, and accurate parameters.

5. Conveyor / Chuck / Horizontal Mechanism Maintenance

• Daily cleaning, weekly lubrication, and monthly fastening inspection.
• Ensure stable operation, no jamming, no vibration, and no deformation.
• Perform special accuracy calibration for horizontal, chuck, and double-side models.

V. Wearing Parts Replacement Cycle Table

VI. Quick Troubleshooting for Common Faults

VII. Maintenance Record Form (Printable Directly)

VIII. Keyida After-Sales Support

• Three-Zero Service: Zero-experience learning, zero-anxiety operation, zero-cost warranty.
• 2-Year Full Machine Warranty: All models enjoy a 2-year free full machine warranty (including wearing parts).
• 7×24 Hour Remote Guidance: Real-time troubleshooting, parameter calibration, and maintenance guidance.
• 36-Hour On-Site Service: On-site maintenance and parts replacement in core areas.
• Lifetime Technical Support: System upgrades, accuracy calibration, and parts supply.