Installing alternator

Fig 1: Identifying Alternator And Screws

Courtesy of VOLVO CARS OF NORTH AMERICA.

Install: 

• the generator in the correct position
• the upper screw, but do not tighten
• both screws common to the generator and A/C compressor, but do not tighten.

Tighten: 

• the upper screw
• the lower screws for the A/C compressor
• the screws common to the generator and the A/C compressor.