Table of Contents
Overview
There are a total of 89 locks in the library that require their batteries to be changed annually. This includes:
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Four AA batteries are required per door. With a total of 89 rooms, a complete battery change requires 356 batteries. The process takes approximately 8 hours. Rooms do not have to be reprogrammed after a battery change.
Battery replacement for CM Series lock (old locks)
Supplies
- Check-off form
- Philips head screwdriver or cordless drill
- 4 AA batteries per lock
- Study Rooms Master key
Steps to replace batteries
- The battery compartment is located under the interior latch, secured by four Philips head screws, one at each corner.
- Remove all 4 screws while carefully holding on to the back of the lock so it doesn't fall.
- Carefully pull the piece off of the door.
- This is most easily done with the door closed.
- When you do this, you are locking yourself in the room. Don't freak out.
- The piece you are removing will look like this.
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- Remove the old batteries and replace with new ones.
- Fit the back panel back, being careful to line up the peg and spring. Then replace the screws.
- Take care to sink the screws properly; if you don't, the threads inside the panel will be stripped and the screw will not screw in completely. It may also cause damage to the panel.
- A good trick is to put the screw in by hand, turn it counter-clockwise until you feel the screw slip into place. Then carefully turn the screw clockwise by hand a rotation or two to properly thread the screw.
- Finally, pull on the handle to make sure that the latch engages. If it doesn't, remove the back panel again and check whether the batteries and the spring and pin are in correctly.
- Record completion of door.
- When all doors have been completed, record in table at the bottom of this page.
Battery replacement for CO-200 & AD-200 locks (new locks)
These locks need to be changed more often, probably twice per year.
Supplies
- Check-off form
- Philips head screwdriver
- 4 AA batteries per lock
- Master Key card for New locks
Steps to replace batteries
- The battery compartment is located under the interior latch, secured by one Philips head screw.
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