Dial is moving very hard

Put gentle pressure on the catch and starting with the combination wheel that is furthest away, turn the dials until you feel it give a little, then move onto the next dial. The final dial will drop into place and open.

There is also a 'shimming' technique, where you insert a thin feeler gauge leaf into the dials and feel for the flat spot. Then you turn all the dials together until the lock pops.

Take a look at the videos from 'The Lock Picking Lawyer'

https://www.youtube.com/@lockpickinglawyer

Hi,

a combination of belts, cranks and power help to move the needle in your machine.

If you're interested in learning more about the mechanics of your device, you can contact Elna by dialing +41 22 884 86 66

Thank you.

You can just buy a new dial.

https://www.safeandlockstore.com/products/Amsec-Star-Floor-Safe-Removable-Dial-B002000-.html

Step 1 Pull the body of the lock and the U-shaped ring away from each other to put pressure on the mechanism inside the lock. Pull the body of the lock away from its attachment, or, if the lock is not attached, apply pressure on the U-shaped ring away from the body of the lock with your fingers. Keep holding a firm, steady pressure.
Step 2 Roll the dial closest to the U-shaped ring slowly, while keeping steady pressure on the mechanism. The dial will get difficult to roll over three consecutive numbers, and one of those numbers will click. You should feel and hear this small click, and that is the first number to your combination.
Step 3 Repeat Step 2 with the middle dial, and then the farthest dial. Leave the dial set when you find the click, moving onto the next dial. The combination will reveal itself, letting you pull the U-ring away from the body of the lock.

Try all the combinations. To save wear on your fingers, use a small screwdriver to dial the numbers. Try to move the little slide after changing each digit. You can try all 1000 combinations in about twice the time it takes you to count to 1000 out loud, but unless you chose a combinations like 998, you will probably open it long before that time.

I suggest taking the machine to a sewing machine shop & let
the technican look at the tension & see if it needs to be replaced

PROCEDURES TO CHANGE THE COMBINATION OF SIMPLEX 1000 SERIES CIPHER LOCKS
1.) ENSURE THE DOOR IS OPEN.
2.) INSERT THE DF-59 CONTROL KEY INTO THE COMBINATION CHANGE PLUG ASSEMBLY (ON THE BACK OF THE
DOOR) AND UNSCREW THE CYLINDER BY TURNING THE KEY COUNTERCLOCKWISE.
3.) TAKE THE CHANGE PLUG ASSEMBLY COMPLETELY OUT OF THE DOOR.
4.) TURN THE OUTSIDE DOOR KNOB CLOCKWISE ALL THE WAY UNTIL IT STOPS, THEN RELEASE THE KNOB.
5.) PRESS IN THE EXISTING COMBINATION FIRMLY.
6.) INSERT THE SPANNER WRENCH IN THE COMBINATION CHANGE SLEEVE. IT SHOULD INSERT AT THE NINE
O'CLOCK POSITION.
7.) TURN THE SPANNER WRENCH GENTLY CLOCKWISE UNTIL IT STOPS AT THE 12 O'CLOCK POSITION. NOTE
THE NOTCHES IN THE COMBINATION CHANGE SLEEVE MOVES AS THE SLEEVE IS MOVED.
8.) TURN THE SPANNER WRENCH COUNTERCLOCKWISE BACK TO THE NINE O'CLOCK POSITION UNTIL IT STOPS.
REMOVE THE SPANNER WRENCH.
9.) TURN THE OUTSIDE DOOR KNOB CLOCKWISE (ALL THE WAY, UNTIL IT STOPS), THEN RELEASE.
10.) INSERT THE NEW COMBINATION BY PRESSING IN THE BUTTONS. USE AT LEAST three numbers and a
maximum of five.
11.) TURN THE DOOR KNOB CLOCKWISE ONCE, ALL THE WAY, UNTIL IT STOPS. HOLD IN THIS POSITION AND
CHECK IF THE LATCH IS RETRACTED.
12.) RELEASE THE DOOR KNOB.
13.) TURN THE DOOR KNOB CLOCKWISE ONE MORE TIME TO THE STOP POSITION. AT THIS POINT, THE LATCH
SHOULD NOT RETRACT UNLESS YOU USE THE NEW COMBINATION.
14.) REINSERT THE CYLINDER INTO THE BACK OF THE DOOR BY SCREWING IT IN CLOCKWISE WITH THE DF-59
CONTROL KEY (DO NOT OVER TIGHTEN!)
REMOVE THE KEY.
A Df-59 key can be purchased at this site:
http://absupply.net/kaba-access-control-lock-1000-series-key-df59.aspx

The spanner wrench (SMPBC201278 Simplex:Spanner Wrench $9.00) referred to can be purchased from this site:
http://www.ckilock.com/Mpage18.asp



You will find a link to download the manual for your model on this page:

http://www.kaba-ilco.com/access_control/literature/literature_grid_mechanical_pushbutton_locks.aspx?id=13

Hover your mouse over "PDF" under the "TIPS" column and the two choices of "Changing the Code/Combination" or "How to Reset a Lost or Unknown Combination" will appear--move your mouse over the appropriate one and click to download the info.

These are PDF files, requiring Adobe Reader to open. There is a link on the same page to download Adobe reader, if the file will not display for you.

Good luck!

Pull the body of the lock and the U-shaped ring away from each other to put pressure on the mechanism inside the lock. Pull the body of the lock away from its attachment, or, if the lock is not attached, apply pressure on the U-shaped ring away from the body of the lock with your fingers. Keep holding a firm, steady pressure.
Step 2 Roll the dial closest to the U-shaped ring slowly, while keeping steady pressure on the mechanism. The dial will get difficult to roll over three consecutive numbers, and one of those numbers will click. You should feel and hear this small click, and that is the first number to your combination.
Step 3 Repeat Step 2 with the middle dial, and then the farthest dial. Leave the dial set when you find the click, moving onto the next dial. The combination will reveal itself, letting you pull the U-ring away from the body of the lock.

the lock is currently set to 000. To set your own combination and with the lock in the 000 position, open the case and on the inside of the lock mechanism you will see a red tab. slide this tab to the left and then move the digits on the front to your desired code. ie 123. then move the red tab back to lock in this new setting as your own personal combination. close the case and then move the digits away from our setting of 123 and this locks the case. only if the digitrs are 123 in this example will the lock now open.