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  • Asia-Africa-Latin America Sample Catalog (Digital Version)
    Oct 21, 2026 Download
  • Asia-Africa-Latin America Sample Catalog (Digital Version)
    Oct 21, 2026 Download
  • Asia-Africa-Latin America Sample Catalog (Digital Version)
    Oct 21, 2026 Download
  • Asia-Africa-Latin America Sample Catalog (Digital Version)
    Oct 21, 2026 Download

Technical Support

From installation manuals and datasheets to design tools and troubleshooting guides – everything your team needs to install, maintain, and optimize Lever solar mounting systems with confidence.

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FAQ

Installation-related issues
What is the recommended torque for M10 bolts?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

Can Lever mounting systems be installed on standing seam metal roofs without drilling?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

What is the minimum spacing between rails?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

How do I handle thermal expansion in long rail runs?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

Product Selection Issues
Which system is suitable for a coastal project with high salt spray?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

What is the maximum wind speed your systems can withstand?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

Can your ground mount systems be adjusted for seasonal tilt angles?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

Do you offer custom sizes for non-standard roof pitches?

The recommended torque for M10 bolts in our solar mounting systems depends on the bolt material and application. For standard A2 stainless steel (DIN 933) M10 bolts used in general PV mounting connections, we recommend a torque of 30–35 Nm.


Important Notes:

  • Always use a calibrated torque wrench for final tightening. Never use an impact driver.

  • If the bolt is lubricated, reduce the torque by approximately 10–20%.

  • For specific structural connections (e.g., rail splices or ground-mount post connections), always refer to the project-specific installation manual provided with your order.

  • Over-torquing can crush aluminum profiles or damage module frames; under-torquing can lead to loosening and wind uplift failure.

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