Adjusting belt tension, poly-V belt alternator

Fig 1: Adjusting Drive Belt Tension By Tightening Lock Bolt

Courtesy of VOLVO CARS OF NORTH AMERICA.

Apply a force of 22.5 lbf  .

• Adjustment value: 
  • new  poly-V belt, value 0.28-0.31 in  .
  • used  poly-V belt, value 0.33-0.39 in  .
• Tighten lock bolt (A).

  Torque setting: 17 ft lb 

• Check and re-adjust if necessary.