M10 Replace Z Axis Motor

Remove any tooling fixtures from the table and tools from the spindle before starting work.

Start the machine and home it ( if possible ). If the Z axis faults, go to service code 505 and try to raise the Z axis. If it faults again, ask the operator or contact person if the Z axis was dropping. If the Z axis drops uncontrollably, the brake may have failed.

If the brake has failed, See the separate guide for replacing the Z axis brake. Use this guide in conjunction to replace or perform motor adjustments.

Caution: The X axis bridge must be supported if the brake has failed before attempting to replace the motor unless the bridge has bottomed out.

Shut down the machine at the main power disconnect switch. Remove the upper rear sheet metal panel to gain access to the motor wires routed in the column.

Disconnect the internal brake cable from the motor located inside the transformer box. Note: Some M 10's have the brake wire connector on the outside of the transformer box. If necessary, remove the top cover of the electrical transformer box to gain access to the connector.

Disconnect the power and encoder cables from the computer module inside the electrical panel.

Carefully remove the cables from the electrical panel up and out of the main column.

The X axis bridge must be supported ( unless it has bottomed out ).

Remove the four (4) 8mm motor mount screws from the motor mount casting. Remove the 5mm belt tension screw from the rear base of the motor.

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