H4-CV26A Roller bearings are designed in accordance with I Helical speed reduction gearboxes H4

Flender/Flender Gear Units/Helical speed reduction gearboxes H4

he oil level at room temperature Correct the oil level if necessary Oil is too old Find out when the last oil change was done Change the oil if necessary Oil supply system defective Check the oil supply system Replace defective components if necessary Follow the operating instructions for the oil supply sys- tem Defective rolling-contact bearings Contact Customer Services Inspect the rolling-contact bearings and replace if neces- sary Defective oil pump Check the oil pump function Repair or replace oil pump if required Elevated temperature at backstopDamaged backstop Contact Customer Services Check the backstop and replace if necessary Increased vibration amplitude at the bear- ing pointsDefective rolling-contact bearings Contact Customer Services Inspect the rolling-contact bearings and replace if neces- sary Gear wheels defective Contact Customer Services Inspect the gear wheels and replace if necessary Contamination indic- ator of the double change-over filter trig- gers an alarmDouble change-over filter clogged Change over the double change-over filter corresponding to the separate operating instructions Clean the filter element Water in the oil Oil supply system or cooling coil defectiveCheck the oil supply system or cooling coil Replace defective components if necessary Follow the operating instructions for the oil supply sys- tem Servicing 8.4 Possible faults 8 Edition 0/2 B5-0 enPossible faults Causes Possible remedies Water in the oil Engine room fan is blowing cold air onto gear unit: Water condensesInstall suitable thermal insulation to protect gear unit housing Close the air outlet or change the direction of the air out- let using structural measures. Climatic conditions Contact Customer Services Use wet-air filter if necessary Oil foams in the oil sump Take test tube sample to examine oil condition for water penetration Have the oil examined by chemical lab Table8-2: Possible faults and their rectification B5-0 en Edition 0/2 8Service & Support 9 9.1 C