584

Access the tool life management screen on the FANUC control (MENU > TOOL LIFE or similar path depending on control model).

Verify which tool or spindle component has exceeded its life count by checking the tool life display for the affected spindle tool number.

If the tool requires replacement, replace the spindle tool according to manufacturer specifications and document the replacement.

Ensure spindle is stopped and locked out before any tool changes.

Reset the tool life counter for the replaced tool or spindle component through the tool life management screen, then clear alarm 584 and verify normal operation.

Check battery voltage on the control unit (normal is 3.0V or higher). Replace battery if voltage is low or battery alarm is present.

Parameter data may be lost during battery replacement; ensure backup exists.

Review tool life parameters (typically parameters 6800-6899 range) to verify correct settings for life count type, limits, and tool number assignments.

Compare current tool life data with maintenance records to identify discrepancies or unrealistic life count values.

If data is corrupted, restore tool life data from backup or manually re-enter correct values, then reset the alarm and test spindle operation.

Access spindle parameters and check parameter 3794 (spindle motor time limit) and compare to current accumulated time in diagnosis screen or parameter 3795.

Review spindle motor maintenance records to determine if scheduled maintenance (bearing replacement, cleaning, inspection) is due based on accumulated hours.

Perform required spindle motor maintenance per FANUC and machine manufacturer specifications, including bearing inspection, lubrication check, and thermal sensor verification.

Spindle maintenance requires qualified personnel; improper service can cause catastrophic failure.

After completing maintenance, reset the spindle hour meter by clearing parameter 3795 or using the dedicated reset function, clear alarm 584, and document maintenance performed.