NOTICE
The backstop and the gear unit can be damaged
If you operate the gear unit adversely to the blocking direction of the backstop, the backstop
and the gear unit can be damaged.
Do not operate the gear unit adversely to the blocking direction of the backstop. Observe the
information on the plate attached to the gear unit.
6.1.2 Gear unit with auxiliary drive
Implement the following measures before commissioning the gear unit with auxiliary drive:
• Please observe the information provided in the operating instructions for the auxiliary drive.
• Fill the overrunning clutch with oil via the intermediate ange. Use the same oil type and
viscosity as for the gear unit itself.
• If required, release the brake on the auxiliary motor.
• Check that the overrunning clutch can be easily rotated in the free-wheeling direction
without having to exert excessive force.
To do this, rotate the motor shaft of the auxiliary drive in the opposite direction to the
direction of rotation arrow to the gear unit.
• Before connecting the auxiliary motor, identify the phase sequence of the three-phase mains.
Connect the auxiliary motor corresponding to the dened direction of rotation.
• Electrically interlock the main motor and the auxiliary motor so that only one of the two
motors can be switched on.
• For a maintenance drive: Check the shutdown function of the speed monitoring (Page 107).
Further information
You can nd additional information on the auxiliary drive in the description (Page 44) and in the
auxiliary drive operating instructions, provided in the complete gear unit documentation.
6.1.3 Gear units with cooling coil
Implement the following measures before commissioning the gear unit with cooling coil:
• Check that connecting pipes are rmly seated and tight.
• Open wide the shuto valves in the coolant inow and outow lines of the coolant system.
• Make sure that the pressure in the cooling coil does not exceed the maximum permissible
pressure.
• Make sure that the temperature of the cooling water is not higher than the maximum
permissible value.
Commissioning
6.1 Measures prior to commissioning
Assembly and operating instructions A5051en
96 Edition 06/2020