Service and Maintenance
3–10
7KC Series Service Manual
2. Firmly press the button assembly onto the locking bar until it is
seated.
).
L
UBRICATING
THE
CORES
Caution
Do not lubricate cores with oil. Doing so will only attract dirt.
For powdered graphite lubrication:
1. Dip a key in graphite. Insert the key into the keyhole and remove it;
repeat several times.
OR
Spray graphite into the keyhole. Insert the key into the keyhole and
remove it; repeat several times.
2. Allow the graphite to sift into the pin segment holes.
For silicone type lubrication:
1. Clean all existing lubricant out of the core.
Caution
Do not mix graphite with a silicone-type lubricant.
2. With the core inverted, spray the lubricant into the key opening
allowing the spray to penetrate the pin segment holes.
Note:
When cores are installed and exposed to harsh weather
conditions, silicone-type lubricants can help displace moisture as
well as spread into pin segment holes and other surfaces.
