4. Whenthe brake-tester rollers have started, · switch the ignition on and press the

4. Whenthe brake-tester rollers have started, switch the ignition on and press the Continue key» of the Porsche System Tester 2. The Tester then returns to the point at which diagnosis was interrupted. 5. Drive front wheels via the rollers of the brake tester (max. 8 kmjh) and measure traction of the front wheels after 20 seconds. Note When measuringwheels individually,the values of the two front wheels must be added. 6. The viscous clutch functions properly if the traction of the front wheels lies within the limit curves in the diagram. At the same time, the ground speed of the front axle (can be read off on the Porsche System Tester 2) must be taken into account. Example~ At 5 km/h ground speed, the traction of an intact viscous clutch must lie between approx. 600 Nand 1450 N (refer to diagram). 8 8 39 -118 39 60 01 Checking function of installed viscous clutch C4S39117 Printed in Gennany -14, 1998