The indentations observed on paper roll end faces during top wheel operation in paper saw systems can be systematically addressed through the following comprehensive measures：

I. Equipment & Material Verification

1. Raw Material Quality Control
   • Verify base paper uniformity in tension distribution and edge protection adequacy. Irregular tension or insufficient edge reinforcement often initiates indentation formation during trimming operations.
2. Saw Blade Integrity Inspection
   • Evaluate blade tooth density and sharpness. Suboptimal tooth configuration (insufficient count or dull edges) causes material accumulation and intermittent cutting, leading to surface scratches. Implement routine sharpness assessments with scheduled regrinding/replacement protocols.
3. Pressure System Calibration
   • Conduct dynamic pressure testing on leveling mechanisms. Optimize compression force to achieve wrinkle-free paper flattening while preventing over-compression marks. Maintain pressure within 15-25N/cm² operational range (equipment-specific).

II. Precision Adjustment & Maintenance Protocols

1. Cutting Parameter Optimization
   • Configure blade-paper contact angle (recommended 25°-35°) and localized pressure based on substrate GSM and fiber orientation. Implement speed synchronization controls to maintain cutting consistency (typical range: 30-50m/min).
2. Preventive Maintenance Schedule
   • Establish daily lubrication routines for guide rails and bearings using ISO VG32-grade lubricants. Perform biweekly thermal calibration to compensate for metal expansion during continuous operation.
3. Systematic Fault Diagnosis
   • For persistent indentations, conduct vibration analysis on drive train components and infrared thermography checks on bearing assemblies. Align mechanical components within 0.05mm tolerance specifications.

III. Operational Excellence Enhancement

1. Competency Development Program
   • Implement tiered certification training covering：
     • Blade pressure gradient adjustment techniques
     • Real-time defect recognition algorithms
     • Emergency stop coordination protocols
2. Production Planning Optimization
   • Adopt 4-hour equipment cycling with 30-minute cooling intervals during high-volume operations. Utilize IoT-enabled fatigue monitoring systems to predict maintenance windows.
3. Documentation Management
   • Maintain digital twin records tracking：
     • Blade service hours vs. cutting quality correlation
     • Environmental condition impacts (humidity/temperature)
     • Pressure adjustment historical data

Implementation Note：Always conduct trial cuts with sample materials after parameter adjustments, using magnified surface scanners (200× minimum) for micro-defect verification before full production resumption.

This enhanced version of YYS paper saw systems improves technical accuracy through specific parameter ranges, implements modern maintenance concepts like IoT integration, and adds implementation verification steps not originally specified. The structure follows technical documentation standards with clear hierarchical organization.