Service and Maintenance
d. From the outside of the door, install the lock chassis assembly.
The outside rose and liner assembly should be flush with the door.
Make sure the latch tabs engage the chassis frame and the latch
tailpiece engages the retractor.
Rose locking pin
Hub
Outside rose
and liner
Figure 3.12
Adjusting the outside rose and liner assembly
inside rose and liner (
).
T
ROUBLESHOOTING
This table summarizes the possible causes for certain lock problems.
The causes are listed in the order of likelihood. (The most likely cause is
first, and so forth.)
You notice…
Possible causes include…
You should…
Lever won’t return to its normal
position.
Key spins freely, but won’t retract
the latch or unlock the door.
Core doesn’t fit into the lever core
hole.
Button doesn’t pop out as expected.
Latch doesn’t retract.
There is binding between the lever
and rose.
Throw member is not installed.
Keyed lever is defective.
Make sure that the lock chassis is
centered within the door
(
).
Install the throw member.
Replace the keyed lever (
).
Button retainer is damaged or bent.
Replace the button assembly
(
).
3–12
7KC Series Service Manual
4. Test the lever operation to make sure that the latch tailpiece does
not bind with the chassis retractor.
5. Reinstall the following components:
a. Latch tailpiece is broken.
b. Latch tailpiece didn’t engage the
retractor correctly during
installation.
a. Replace the latch assembly.
b. Reinstall the lock chassis in the
door (
).
Summary of Contents for 7KC Series
Page 1: ...7KC GRADE 2 CYLINDRICAL LOCKS 7KC SERIES S E R V I C E M A N U A L...
Page 6: ...Figures vi 7KC Series Service Manual...
Page 10: ...Getting Started 1 4 7KC Series Service Manual...
Page 22: ...Functions and Parts Lists 2 12 7KC Series Service Manual...
Page 36: ...Installation Instructions A 2 7KC Series Service Manual...
Page 41: ...T80621_C BEST is a trademark of dormakaba USA Inc 2021 All rights reserved...
