POWER METER: How to install my power meter spider?

1.Remove the chain.
2.Separate the original crank, spider, and chainring.
3.Replace the original spider with the new power meter spider. Pay attention to the torque of the spider screws or lock caps or the chainring bolts.（Please refer to the image below.）
4.After installation, check and adjust the front derailleur travel to avoid scratches.