How do we retrieve burial policy opening combination safe without combination but we have key?

Normally open the safe, press the red button, and enter the new combination.

https://www.google.com/search?q=sisco+model+the+protector+safe+change+combination

..

notify brinks or a locksmith

There is no way to reset, but they are very insecure and can be opened with the bounce method, banging the top with a rubber mallet whilst turning the lock dial, or by using a rare earth puck magnet in a sock! Or just call a locksmith.

https://www.google.com/search?q=the+protector+safe+lost+key

.

https://www.hunker.com/13419341/how-to-get-a-combination-for-a-brinks-fire-safe

notify manufacturer to assist with troubleshooting

Lock smith

I'm sorry for your loss, but you would need to contact a lawyer in your area for the answer.

You can contact customer service at the Honeywell web page or directly through Sisco at the number below - They might be able to help you recover the original combination for your safe. They can also give you directions for your safe. Else, you might have to cut this safe open from the back or call a locksmith/safe tech. You can open this safe fairly easily with a pair of large screw drivers or pry bars or you can mail a notarized letter, requesting the combination to your safe, and include the model number and serial number to:

Sisco
2835 E. Ana Street
Compton, CA 90221

You can also fax the information to 310-638-3489.

https://www.honeywellsafes.com/
Sisco Products
2835 East Ana Street
Rancho Dominguez, CA 90221
Phone1: (800) 223-8566
Phone2: (310) 638-1182
Fax: (310) 638-6489

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

ive lost my combination to lord safe how do i go about this

To bad you dismantled. Here is the turning sequence:
General Turning Sequence Instruction NOTE SAFE MODEL 5054/5055/5059/5080/5081/5084/5111/5190/5195/5575/5700/5702.

Combinations consist of FOUR (4) positions (numbers).
BEFORE YOU START
Before you begin, please clear all settings by turning the dial CLOCKWISE (to the right)
three times. We also recommend to try the procedure with your safe door open first. Then
follow these steps:
TURNING SEQUENCE
1. Start the dial on 0 (zero).
2. Turn the dial to the RIGHT, passing your first combination number FOUR (4)
times and stopping at that number on the fifth time around.
3. Turn the dial to the LEFT, passing your second combination number TWO (2)
times and stopping at that number the third time around.
4. Turn the dial to the RIGHT, passing your third combination number ONE (1) time
and stopping at that number the second time around.
5. Turn the dial to the LEFT, to the last combination number and STOP.
6. Insert the key in the cylinder lock and turn RIGHT to open.
Your safe should now be opened.