If stitch quality issues occur only on certain materials, the cause is usually related to setup, consumables, or material handling, rather than a machine fault.
Before escalating:
Confirm the correct needle type and size for the material
Adjust thread tension to suit material thickness
Reduce machine speed during testing
Use scrap material to set up and fine-tune settings
Different materials require different machine settings. Avoid using a single setup across all applications to maintain consistent stitch quality.
Stop operation and contact AE Sewing Machines if:
Safety systems are triggered repeatedly
The machine behaves unpredictably
There is visible damage to the machine or components
Noise, vibration, or heat increases rapidly
Continuing to operate equipment with unresolved issues may:
Cause further damage
Increase downtime
Create safety risks
AE Sewing Machines recommends stopping and seeking guidance whenever safe operation cannot be confirmed.

Important notice
The information provided in this article is intended for general guidance only. Operating procedures, safety requirements, and compliance obligations may vary depending on the specific machine, configuration, application, and working environment. Always follow the instructions supplied with your equipment and ensure work is carried out by suitably trained and competent personnel.
To the fullest extent permitted by law, AE Sewing Machines shall not be liable for any loss, damage, or injury arising from the use of this guidance where equipment is used incorrectly, modified, or operated outside the manufacturer’s recommendations.

Need further support or looking to optimise your setup?
AE Sewing Machines offers technical support, servicing, genuine spare parts, upgrades, and automation solutions to help improve reliability, efficiency, and long-term performance.
If you require professional assistance, training, or would like to discuss service or support options, our team will be happy to help.
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AE Sewing Machines
Advance Enterprises Automation Ltd
Industrial Sewing Machines, Automation & Support