Make sure you verify you have the dormakaba Simplex 1000 lock type before you begin any of the change code procedures. DO NOT use this if you do not know the code to your lock. You will need to call a local locksmith. Simplex 1000 series. CAUTION: The door MUST BE open during this entire procedure.. Ask the Doc Link: https://locdoc.net/security-and-locksmithing-blog/combination-locks-how-to-change-your-code-or-combination-simplex/-----"How can I chan.
Instruction for Simplex Push-Button Combination Lock with Key Over-Ride Troubleshooting If the thumb knob retracts the cam and you have not entered your comb, steps were done our of order and the lock is in zero code. Repeat steps 2-4-5-6-7&8. SETTING/CHANGING YOUR COMBINATION STEP 1. Open Drawer - Remove allen screw from the left side of the.. Changing the Code/Combination Simplex 1000/L1000 The door must be open. On models with the passage feature, make sure the passage feature is disen-gaged: turn knob or key should be in vertical position (A) (see figure 1). 1. Insert the DF-59 control key (B) into the combination change plug assembly (C) and unscrew the cylinder by turning the key