Mounting the screws onto the DCA63.. motor

Observe the following notes when fastening the screws on the motor:

• When fastening, only use the bores on the output end of the motor housing.
• To that end, transfer the bores required for the centering collar of the motor and the pitch circle of the mounting bores onto the mounting plate and drill (see following drawing).
• Secure the drives to a flat surface by using at least 4 screws.
• Use appropriate measures to secure the screws and prevent them from coming loose. A chemical thread locking compound, for example, is suitable here.
• Use self-tapping screws according to DIN 7500 for fastening. SEW-EURODRIVE recommends screw connections consisting of Taptite 2000^® screws.
• Of the 3 available hole circles, always choose the one with the largest diameter. Sequence: M5/FF40, M4/FF49, M4/FF36.
• If you undo and reconnect the screw connection, you can also use a standard metric screw. In this case, replace the thread locking compound to ensure the connection is as strong as it was previously.
• Self-tapping screws can be screwed in again after being undone. To do so, turn the self-tapping screw contrary of the direction of rotation until the thread sets into place. Then manually screw in the self-tapping screw one turn. Then tighten the self-tapping screw using the specified torque. Impulse screwdrivers or impact screwdrivers must not be used. Manual handheld screwdrivers are only permitted in service cases.
• Adhere to the maximum tightening torques of the retaining screws according to DIN 7500.

The following figure shows the fastening bores on the drive.

• Determining the screw length