U-Tec Ultraloq UL3 Serie Guia De Instalacion página 5

Preparing Lock
If your door thickness is over 1.65"(42mm), please install this spring.
Interior
Spring ×1
Before installing the lock on the door
1. Slide the battery cover up and out (note the two tabs at the bottom of the battery cover).
2. Remove the inside mounting plate (with gasket) from the back (door side)
of the interior assembly.
STEP
2
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