Allegion Schlage D Series, Manual

Page: 55 / 573

Troubleshooting
Schlage • SFIC service manual • 11
Troubleshooting
If any key fails to operate the core you’ve just combinated,
review the bittings and try to ascertain where the mistake
may be. Hold the core upside down and place the ejector
tool into the hole of the chamber you want to empty. Using
a light plastic mallet, tap the ejector tool until it forces all
material out of the pin chamber. Test all key(s) again.
Ejector Tool
If the problem persists, take your next best guess of where
the error is a repeat with another chamber. When all keys
operate, you know that the remaining chambers are
combinated correctly. Recombinate the empty chambers.
This technique is also used when it is necessary to
decombinate the core for rekeying.
If you find combinating difficult, we recommend completely
finishing one chamber at a time, including the capping
process, leaving the remaining chambers empty. This
allows you to test all keys chamber by chamber until you
build up enough accuracy and confidence to handle all
chambers at once.
If keys fail to operate smoothly and you are positive you
have cut the keys and pinned the core correctly, your key
machine may be out of adjustment or pins may have gotten
mixed up in your pin kit. The A2 system pin lengths and key
bitting specs are shown on these pages. You will need
calipers or a micrometer to check your pins and keys against
the specs.
Non-patented cores may be combinated to A3 or A4 system
specifications, but these would be non-Schlage key systems
and are not within the scope of this manual.
Pin Lengths
Bottom Pins
0A = .110”
1A = .1225”
2A = .135”
3A = .1475”
4A = .160”
5A = .1725”
6A = .185”
7A = .1975”
8A = .210”
9A = .225”
Master, Build-up and Top Pins
2B = .025”
3B = .0375”
4B = .050”
5B = .0625”
6B = .075”
7B = .0875”
8B = .100”
9B = .1125”
10B = .125”
11B = .1375”
12B = .150”
13B = .1625”
14B = .175”
15B = .1875” *
16B = .200”
17B = .2125” *
18B = .225”
19B = .2375”
*Not used in pure 2-step progression.