03.2020
18/20
H39.MFVRS012EN-01
KFV – Assembly instructions
Multi-point locks, key operated, main lock set
6
Troubleshooting
6.1
Functional disorder of the lever handle
The lever handle does not return to its original position by itself.
f
Check that the lever handle is correctly seated.
•
The lever handle must not have any contact with the rose or the plate or the gear box.
f
Check the tightening torque of the screwing of the handle set.
•
If the screwing is too tight, the routed pocket could be distorted and exercise lateral pressure on the gear box,
causing sluggishness.
f
Check the dimensions of the routed pocket of the main lock.
•
If, in spite of the specified dimensions being observed, the lever handle does not return to its original position
by itself, the multi-point lock must be checked by KFV.
•
If the routed pocket does not comply with the specified dimensions, it must be reworked.
f
Repeat the test step with the reworked routed pocket.
•
If the lever handle continues to fail to return to its original position by itself, the multi-point lock must be
checked by KFV.
6.2
Functional disorder of the profile cylinder
The key cannot be pulled out.
f
Dismount the cylinder lock and check for functional disorders.
•
The cylinder lock must be replaced if it does not function properly.
f
Repeat the test step with the new cylinder lock.
•
If the key still cannot be pulled out, the main lock must be checked by KFV.
6.3
Functional disorder of the main lock bolt
f
Check the adjustments of the AT piece.
•
Adjust the AT piece in the direction of the door leaf to reduce the lateral contact pressure.
f
Repeat the test step with the readjusted AT piece.
•
If this sluggishness persists, the dimensions of the routed pocket of the main lock must be checked.
•
When the routed pocket is compliant with the specified dimensions and the sluggishness persists,
the main lock must be checked by KFV.
•
If the routed pocket does not comply with the specified dimensions, it must be reworked.
f
Repeat the test step with the reworked routed pocket.
f
Check that the drive rods are correctly seated in the fastenings.
f
Remove any contamination from the running surfaces and drive rods.
•
Remove any contamination.
f
Check the tightening torque of the plates and rosette fittings.
f
Check that the cylinder lock is correctly seated.
6.4
Functional disorder of the latch
The latch runs with difficulty, does not extend completely, or does not extend at all
f
Check the specified dimensions of the routed pocket of the main lock.
•
When the routed pocket is compliant with the specified dimensions and the sluggishness persists,
the main lock must be checked by KFV.
f
If the routed pocket does not comply with the specified dimensions, it must be reworked.
f
Adjust the frame part.
