79/RT/E7900/770/E-760/660 Series
PK3678_T 04-18 27
11. The Recodable Cylinder with 3 different keys (for
E-760/770/79/RT Series with override only)
CAUTION
WARNING
IMPORTANT
Read the following instructions before using any of the 3
keys supplied
The E-760/770/79 Series/RT with a recodable cylinder can
be operated with three different keys. The keys are num-
bered 1, 2 & 3, and each key is labeled and supplied in a sepa-
rate plastic bag. It is very important to use them in order.
Always read the label instructions on the label before using
a key.
CAUTION
WARNING
IMPORTANT
The use of key #2 automatically cancels the function of key
#1, and the use of key #3 automatically cancels both keys
#1 and #2.
If key #3 is used first, it will immediately make keys #1 and
#2 unusable.
Once a key is cancelled, it can’t be reactivated unless the cyl-
inder itself is re-pinned.
Fig. 21
Key #1
Key #2
(cancels
key #1)
Key #3
(cancels keys
#1 and #2)
cylinder
How to change lock combination from key #1 to key #2:
34. Insert key #2 into cylinder.
35. Turn the key clockwise until it stops (see Fig. 22) for both
left-handed and right-handed locks.
Right-handed lock
Left-handed lock
Fig. 22
36. Turn the key back counter-clockwise until it is in the hori-
zontal position.
Fig. 23
Right-handed lock
Left-handed lock
37. Remove the key.
Now the lock should work with key #2, and key #1 has been
cancelled.
TEST: Try to use key #1 in the lock. It should no longer work.
How to change lock combination from key #2 to key #3
38. Insert key #3 into cylinder.
39. Turn the key clockwise until it stops.
40. Turn the key back counter-clockwise until it is in the
horizontal position.
41. Remove the key.
Now the lock should work with key #3, and key #2 has been
cancelled.
TEST: Try to use key #2 in the lock. It should no longer work.
9 Installation of Mechanical Override Models
