Flender/Flender Gear Units/Bevel-helical gear reducers B4
tating parts from contact 7.4 Removal from service To take the gear unit out of service, first switch off the

drive assembly. Secure the drive unit to prevent it from being started up unintentionally. Attach warning notice to the start

switch. Note: In the case of types fitted with motor pump: The motor pump must be allowed to constantly rotate

fully in order to achieve optimum corrosion prevention when the gear unit is stationary. Additionally, at temperatures below zero the

motor pump assists the heat output of the heating elements. During longer periods of disuse, start the unit up briefly (aaprox. 1 minutes) at intervals of approx. 3 weeks. 8. Operation Observe the "Safety instructions" in section 3, the instructions in section 9, "Faults, causes and remedy", and in section 1, "Maintenance and repair"! 8.1 General operating data During operation the unit must be monitored for: Excessive operating temperature (If synthetic oil is used, the gear unit is suitable for temperature of 9 in continuous operation. Themaximum shortterm operating temperature is 1 . See also section 1.) Changes in gear noise Possible oil leakage at the housing and shaft seals Correct oil level (see section 7, "Startup") Note: To check the oil level, stop operation of gear unit. When the oil is warm it may slightly exceed the top mark of the oil dipstick. It must not be allowed to fall below the lower mark. If necessary, top up to the correct level. If any irregularities are noticed during operation, or if the pressure monitor triggers the alarm, switch the drive assembly off at once. Determine the causeof the fault, using the table in section 9.The troubleshooting table contains list of possible faults, their causes and suggested remedies. If the cause cannot be identified or the unit repaired with the facilities available,you are advised to contact one of our customerservice offices for specialistassistance (see section .Caution! 2 / 3BA 5 EN 1.0. Faults, causes and remedy Obse