Ford Focus 1.8 TD timing belt replacement

Hi, I'm back after a long break. Now, regarding my request. My friend wants me to help him with the timing belt replacement on his Ford Focus 1.8 TD, which I believe is from around '99. I'm missing some information about the replacement. Has anyone had experience with this on a Ford before, or does anyone know the details for the replacement (e.g., torque specifications, special features, special tools, etc.)? I would appreciate any information.
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