S$ 23-1 OPERATION No. D. 236-0 : Adjusting the pulleys and belts 8. Tension of compressor drive belt (vehicles with air conditioning) NOTE : To perform this operation correctly, a GATES 150 tension-meter, sold under No. 1688-T MUST be used. a) Fit the meter 1668 - T belt as shown in the illustration opposite, the scale «b» against - the lever «a», Without touching the body of the meter, press the lever «a» in the direction indicated by the