1. Incorrect troubleshooting sequence
Skipping fundamental checks-such as reading alarm codes, verifying power and air supplies, and checking the emergency stop status-in favor of immediately dismantling core components wastes time and risks disrupting the equipment's original state, potentially turning minor faults into major issues.
2. Blindly replacing parts without verification
Replacing components like sensors or motors without first testing their functionality (e.g., using a multimeter) leads to wasted parts and risks introducing new installation errors.
3. Completely ignoring process parameter verification
Focusing solely on mechanical structures while overlooking parameter drift-such as tension taper, blade gap, and web-guiding thresholds-means that repeated adjustments fail to resolve issues like ragged edges or uneven winding.
4. Skipping test cuts after troubleshooting
Proceeding directly to full-speed mass production after a repair, without first running low-speed no-load tests or sample cuts, risks overlooking latent precision errors and resulting in the scrapping of entire batches of finished products.
5. Failing to document and track faults
Neglecting to keep a record of faults after resolution allows the same issues to recur, preventing the accumulation of valuable, equipment-specific troubleshooting experience.
