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1 YES NO Inefficient lever operation. Replace the lever. Inefficient electronic control unit operation. Check and if necessary replace the control unit. Inefficient electric system operation. Determine the trouble and restore the system. (continues) 4 - Poor or no retarder disengagement. 5 - Indicator light comes on intermittently 6 - Temperature control trips early. Main retarder operating trouble: - No braking effect. 2 - Poor braking effect. 3 - Irregular braking effect. YES NO YES NO BRAKING EFFECT 2 YES NO Incorrect use of the retarder. Use the retarder properly, keeping to the instructions Low oil level. Top up the oil level. POOR BRAKING EFFECT YES 14 INTARDER - ZF HYDRAULIC RETARDER S TRALIS AT/AD Base - January 2003 |