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3GZF500725-144 EN 03-2023 | ABB IEC LV MOTORS
water, ensure that water can circulate freely before using the motor again. Remove possible
rust blockages by dissolving them with oxalic acid:
1.
Empty the frame of water.
2.
Fill the frame with water mixed with oxalic acid (100 g/ liter).
3.
Let the acid take effect for approximately 10 minutes.
4.
Empty the frame and wash it with pressurized water.
5.
Repeat the treatment if necessary.
If the motor is equipped with a separate bearing fan, ensure that there is free ventilation air-
flow. Installation of a motor with a bearing fan in a closed flange construction (i.e. flange-
mounted motor) is not recommended.
Cleaning of motor cooling system helps to restore system efficiency. ABB recommends using
regular flushing and cyclonic or magnetic filters, which should be regularly maintained. Flush-
ing can be done as described above.
Check that water in the system is neutral or near neutral pH after flushing.
7.
Lifting
Only the main high strength (360° adjustable in force direction) lifting eyebolts provided with
the motor must be used for lifting the motor. They must not be used to lift the motor when it
is attached to other equipment.
Lifting lugs for auxiliaries (e.g. brakes) or terminal boxes must not be used for lifting the mo-
tor. Because of different output, mounting arrangements and auxiliary equipment, motors
with the same frame may have a different center of gravity.
Damaged lifting lugs must not be used. Check that eyebolts or integrated lifting lugs are un-
damaged before lifting.
Lifting eyebolts must be tightened before lifting. If needed, the position of the eyebolt can be
adjusted using suitable washers as spacers.
Ensure that proper lifting equipment is used and that the sizes of the hooks are suitable for
the lifting lugs.
Care must be taken not to damage auxiliary equipment and cables connected to the motor.
Remove eventual transport jigs fixing the motor to the pallet.
After motor installation protected tapped holes with yellow plugs provided in document
package.
Specific lifting instructions are available from ABB.
During lifting, mounting or maintenance work, all necessary safety considerations shall be in
place and special attention to be taken that nobody will be subject to lifted load.
