Replace a Scratched M188 Rubber Strip When Cutting Becomes Uneven

Replace the rubber strip in the MTB-CUT M188 when its surface is scratched and screen protector cutting becomes inconsistent. A damaged strip can result in some areas being cut through while other areas are not. The rubber strip is located at the bottom of the cutting module and is intended to protect the cutting blade while extending the lifespan of both the blade and the machine.

What the Rubber Strip Does

The rubber strip is part of the MTB-CUT M188 screen protector cutting machine. Its documented purpose is to protect the cutting blade and help extend the lifespan of the blade and the machine. Because the strip supports this protective function at the bottom of the cutting module, scratches on its surface are the documented condition that indicates replacement may be necessary.

When Replacement Is Supported

Replacement applies when the rubber strip surface has become scratched. The associated cutting symptom is inconsistent screen protector production: some areas of the material are cut through, while other areas are not.

This procedure is specifically for the rubber strip. The documented condition concerns scratches on that strip together with inconsistent cutting. Other MTB-CUT M188 component issues are outside the scope of this replacement procedure.

Supported Replacement Procedure

Use the following documented sequence to determine whether to replace the rubber strip and proceed with the supported guidance:

1. Check the rubber strip condition. Determine whether the surface of the rubber strip at the bottom of the cutting module has become scratched.
2. Match the cutting symptom. Confirm that cutting is inconsistent during screen protector production, with some areas cut through and others not cut through.
3. Replace the rubber strip. When the scratched strip is associated with this inconsistent cutting condition, the rubber strip should be replaced.
4. Follow the dedicated replacement guide. The documented MTB-CUT M188 rubber strip replacement video provides the step-by-step replacement guidance.

Documented Scope and Limitation

The available written guidance establishes the strip’s purpose, the condition that calls for replacement, and the related cutting symptom. It does not provide the individual physical replacement actions in text or state a separate post-replacement completion check. Those individual replacement actions are provided in the dedicated step-by-step video guide.