Checking & Adjusting Drive Belt Tension

Prepare Special Tool (9574) for test. Push indicator arm into tester and hold tester with thumb and index finger. See Fig 1.
Install tester on the V-belt, between pulleys. The guide rail of the tester must be on the side of the V-belt.
Apply even vertical pressure on the pressure button until the snap spring is heard or felt. DO NOT apply additional pressure after the snap spring has been heard or felt. This will result in incorrect readings.
Carefully remove the tension tester. Read out measured values on the ridge between indicator arm and top scale. See DRIVE BELT TENSION SPECIFICATIONS table for specifications.
CAUTION: When removing, the tester MUST NOT make contact with components in the V-belt area. This would move the indicator arm and result in incorrect readings.

Fig 1: Identifying Special Tool (9574) - (1 Of 2)
Courtesy of PORSCHE OF NORTH AMERICA, INC.

Fig 2: Procedure For Using Special Tool (9574) - (2 Of 2)
Courtesy of PORSCHE OF NORTH AMERICA, INC.