Resetting the Code/Combination From a Lost Code
Simplex LP1000
LP1000 Series FAQ
Resetting the Code/Combination From a Lost Code
Important: There is no procedure for nding an unknown combination from the front of the lock. A
lost combination must be cleared by removing the combination chamber from the lock housing, then
a new combination can be set.
1. Remove the back plate from the front lock housing by removing the six
back plate screws.
2. Remove the two Phillips head screws (F) securing the guide bracket (D
to the front housing. Grasp the guide bracket and slide it back to
disengage it from the clutch linkage (see gure 1).
3. Lift the two chamber links (A) o of the control shaft (B) using a small at
blade screwdriver. Mark links to assure proper reassembly (see gure 1).
4. Remove the combination chamber (E) by removing the Phillips head
screws (G) at each end of the chamber (see gure 1).
5. Remove shaft bushing (C) from control shaft (see gure 1).
6. Remove chamber cover marked ILCO UNICAN (A) (see gure 2) by gently
tapping the lip of the chamber cover (A) at the control shaft end of the
chamber (see gure 3) with a screwdriver to detach it from the staked
joints (B).
7. Lay the chamber on its side as shown in gure 4.
8. With tweezers, or other tool, slide the "E" ring (B) o the unlocking slide
stud (A) (see gure 17-4), then gently lift the end of the unlocking slide
(C) over the unlocking slide stud (A) (see gure 5).
Note: The unlocking slide (C) is under spring tension and will be easier to lift if
pushed to the left to ease tension. Swing the unlocking slide (C) suciently to
clear the gears, (D) no further than shown in gure 5.
9. Depress the lockout slide (E) as shown in gure 6. The gears (D) are now
free to rotate.
10. Turn each gear (D) so that the slots (F) are aligned as shown in gure 6.
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