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3 CF65/75/85 series ZF intarder DIAGNOSTICS 8-1 8. ZF INTARDER 8.1 FAULT-FINDING TABLE SYMPTOM: NO BRAKING MOMENT Possible cause Remedy Oil level too low Check oil level Intarder is not filled with the specified oil Change the oil No pump pressure Check system No control pressure Check system No intarder pressure Check system SYMPTOM: INSUFFICIENT BRAKING MOMENT Possible cause Remedy Oil level too low Check oil level Intarder is not filled with the specified oil Change the oil Pump pressure too low Check system Control pressure too low Check system Intarder pressure too low Check system Freewheeling turning torque system remains Check the free movement of the plungers in the SYMPTOM: CONSTANT BRAKING MOMENT WHEN INTARDER IS SWITCHED OFF Possible cause Remedy Oil level too high Check oil level Control pressure is independent of the position Check system 1 ᓻ 200337 |