3 Transport, storage, assembly
B 1000 en-3921 21
3.3.7 Installing the oil reservoir tank (Option: OT)
Mount the oil reservoir tank (Option OT) according to document WN 0-521 30.
A pressure vent is optionally available. If available, screw the M12x1.5 pressure relief vent into the oil
reservoir tank.
3.4 Installing the gear unit
Gear unit damage through overheating
• For geared motors, check that the cooling air from the motor fan can circulate around the gear unit
without obstruction.
Damage of bearing and gear wheel
• Do not carry out any welding work on the gear unit.
• Do not use the gear unit as earth connection for welding work.
The following conditions must be met at the installation site in order to prevent overheating during
operation:
• There must be adequate space around the gear unit.
• Air must be able to flow freely past all sides of the gear unit.
• For geared motors, the cooling air from the motor fan must be able to circulate around the gear unit
without obstruction.
• The gear unit must not be enclosed or encased.
• The gear unit must not be exposed to high energy radiation.
• Do not direct warm exhaust air from other units onto the gear unit.
• The base or flange to which the gear unit is attached must not input any heat into the gear unit
during operation.
• Do not allow dust to accumulate in the area of the gear unit
Install the gear unit in the correct mounting position (see chapter 7.1 "Versions and mounting
position"). Oil checking and oil drain screws must be accessible.
The base or flange to which the gear unit is fitted should be vibration-free, torsionally rigid and flat.
The flatness of the bolting surface on the base or flange must comply with DIN ISO 2768-2 tolerance
class K.
Precisely align the gear unit with the drive shaft of the machine in order to prevent additional forces
from being imposed on the gear unit due to distortion.
Fasten the gear unit to all gear unit feet of one side or to all flange holes. Use bolts with a minimum
quality of 8.8. Tighten the bolts with correct torques (see chapter 7.3 "Screw tightening torques").
For foot and flange-mounted gear units (Option XZ or XF), ensure tension-free bolting. The foot
mounting is used to fasten the gear unit. It is designed to absorb the reaction forces from the torque,
radial and axial forces as well as the weight. B5 or B14 flanges are basically not designed to absorb
the reaction forces. In case of doubt, contact Getriebebau NORD for investigation of the particular
case.
Earth the gear unit housing. For geared motors, ensure the earthing via the motor connection.
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