Hitachi TD61-2472 - Manual (Page 50)

1.11.5 Security
Changing the Admin password or User password (keylock password).
1 From the setting menu, select "5. Security".
2 Select "1.KeyLock password".
* Do the same for the "Admin password".
3 When you select "1.KeyLock password", the system asks you for the current
password. Please enter the correct password. The default value is 0000.
4 If you input the wrong password, a screen like that on the right is displayed.
5 When you input the correct password, the system asks you to input the new
password.
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