I. Repairing but Not Maintaining: Treating "troubleshooting" as "routine maintenance"
Incorrect Manifestation: Believing "if the machine can still run, there's no need to worry," only addressing issues when abnormal noises, jamming, or even shutdown occur.
Potential Consequences: Problems such as bearing dry friction, chain stretching, and seal aging may not show obvious signs initially, but continued operation accelerates wear and tear, eventually leading to a chain reaction of failures. Repair costs far outweigh prevention investments.
Correct Approach: Establish a "prevention-first" mindset and a proactive maintenance mechanism. Strictly adhere to scheduled lubrication, cleaning, and calibration procedures. Even if the equipment is running smoothly, regular "check-ups" are necessary.
II. Careless Lubrication: Using the wrong type of oil or improper lubrication methods
Incorrect Manifestation: Using ordinary grease instead of specialized grease, or believing "the more oil, the better," leading to spills and fabric contamination; some people neglect lubrication for extended periods due to inconvenience.
Potential Consequences: Inferior grease is prone to emulsification and failure, accelerating wear; excessive lubrication causes oil splatter, resulting in oil stains on the fabric; insufficient lubrication directly leads to bearing burnout. Correct Practice: Use compound calcium-based grease (dropping point 180℃). Lubricate the fabric roll bearings every 6 months and the drive bearings quarterly, ensuring "appropriate amount, fixed location, and fixed time."
III. Incomplete Cleaning: Neglecting Hidden Corners
Incorrect Manifestation: Only cleaning the visible areas of the dyeing tank, neglecting glue and fiber buildup under the chain, on the roller end faces, and inside the filter.
Potential Consequences: Accumulated residues can clog the circulation system, affect tension transmission, and even fall onto the fabric surface, causing color spots or abrasions.
Correct Practice: Clean glue buildup inside the machine weekly and check the stainless steel rollers for yarn knots, ensuring a smooth and unobstructed fabric guide path.
IV. Neglecting Precision Calibration: Allowing Minor Deviations to Accumulate
Incorrect Manifestation: Believing that "once the tension is adjusted, it's done," and neglecting to check roller parallelism, tensioner curvature, or sensor accuracy for extended periods.
Potential Consequences: Small deviations, accumulated over time, can lead to fabric problems such as wrinkles, weft skew, and edge-to-center discrepancies, which are difficult to remedy through process adjustments.
Correct Practice: Use a laser alignment instrument monthly to check roller parallelism; adjustments are required if the deviation exceeds 0.1mm. Check the fabric stretcher curvature quarterly to ensure it is suitable for the current fabric type (e.g., 4-8mm is recommended for silk).
V. Missing Records: Maintenance Process Untraceable
Incorrect Manifestations: Maintenance is performed verbally or from memory, without written records, leading to omissions, duplications, or unclear responsibilities.
Potential Consequences: It becomes impossible to determine the last maintenance time and content, making it difficult to trace the source of malfunctions and hindering scientific maintenance cycle management.
Correct Practice: Establish a paper or electronic maintenance log, recording the specific items, time, and operator for each cleaning, lubrication, and calibration, creating a traceable maintenance record.
VI. Disconnect Between Environment and Operation: Focusing Only on Equipment While Ignoring Coordinating Factors
Incorrect Manifestation: Focusing solely on machine maintenance while neglecting drastic fluctuations in workshop temperature and humidity, or operators failing to follow proper sewing and fabric feeding procedures.
Potential Consequences: Environmental changes cause fabric shrinkage and deformation; improper operation leads to problems such as overlapping marks and loose board marks, which are misdiagnosed as equipment malfunctions.
Correct Practices: Maintain stable workshop temperature and humidity, while simultaneously strengthening personnel training to ensure that pretreatment meets standards, sewing ends are straight, and fabric feeding is neat, achieving coordinated protection of "human-machine-environment."
