Olympus FC10 Lock: Hon F24/F28 File Cabinets

Oct. 1, 2009
The Olympus FC10 provides an aftermarket alternative for replacing the factory original lock.

Hon® F24/F28 vertical file cabinets manufactured after 1988 and Series 1000 vertical file cabinets use a rotary style cam lock to secure the two- and four-drawer models. What makes these file cabinets of interest to locksmiths is they are operated with a non-standard, cam style lock that is secured into the face using a spring clip. The lock face is round, ¾” in diameter, not oval like the pushbutton style file cabinet lock. The opening in the file cabinet front has two flat sides 5/8” apart.
Olympus Lock, Inc. introduces the patented FC10 Series replacement lock kit with installation instructions for these Hon file cabinets. The Olympus FC10 locks come with all parts necessary for complete lock replacement including the connecting link. A metal armature connects the cam to the locking mechanism.
The FC10 pin-tumbler housing and plug are manufactured from Zinc die cast material. This pin tumbler lock utilizes the National D4292 (5 pin) keyway.
Olympus FC10 locks use the 001-970 code series. The locks are factory combinated in four pin chambers. They are available in a variety of configurations including Keyed Alike, Keyed Different and master keyed.
FC10 locks are designed with the patented Olympus cylinder retainer staple, and a removable spring retainer to simplify the rekeying process. The cylinder retainer staple has two long legs that slide through the housing through the cutout towards the rear of the plug, securing the plug within the housing. A groove is cut into the threaded portion of the housing for the upper portion of the staple to slide into, permitting a nut to tighten the lock in place.
With the staple removed from the lock, the plug can be slid out of the face of the housing, permitting servicing or the combination changed. As an alternative, after removing the staple, the spring retainer can be slid off providing access to the springs and pin tumblers.

The spaces and depths for the FC10 lock are:
Spaces Cut-to-cut 140” shoulder stop key
1- .150”           2- .290”           3- .430”
4- .570”           5- .710”
Depths Drop - .0125”
0- .270”           1- .257”           2- .245”           3- .232”
4- .220”           5- .207”           6- .195”           7- .182”
8- .170”           9- .157”
Use a 3/8” diameter follower. If no follower is available, a ballpoint pen or handle from a giveaway screwdriver can be used.

Replacement key numbers for the FC10 lock are:
Four pin key blanks: Axxess 107, Barnes NA-14, Ilco 1069L, Ilco EZ NA14, Jet NA14, JMA NTC-1D and National D4291
Five pin key blanks: Axxess 85, Barnes NA-12710, Ilco 1069LB Ilco EZ NA12, Jet NA12, JMA NTR-2D and National D4292
To originate keys for the FC10 lock, use the 1200CM code card C39, the Ilco Universal 1043 code card or the ITL 45.

Once the lock has been serviced and assembled, it is ready to be installed into the file cabinet.
The five-wafer Hon file cabinet lock code series is 101E-225E. The actual key code stamped into the face of the subject file cabinet is 136E, containing cuts X1255. To originate keys for this Hon file cabinet lock, use the HPC 1200CM code card CX32, the Ilco Universal code machine card 1069/CX32 or the ITL number 224.
To remove the Hon lock from the file cabinet, turn the lock to the unlocked position or remove the cylinder from the lock by releasing the retaining wafer at the rear of the keyway. Open the top drawer. Lift the track and slide out the drawer and the track together. Once the drawer has been removed, there is easier access to the lock.
The file cabinet gang bar is connected to the lock’s cam by a metal connecting link. The cam has a hole along the tip into which the link attaches. The tab portion of the link slides into the hole in the gang bar. Detach the connecting link to the cam first. Then slide the link out of the hole in the lock’s cam.
The Hon lock is secured to the front of the file cabinet using a spring clip. Use a small flat screwdriver to lift up the clip in order to remove it. Pull the clip out using a small pair of locking pliers or needle nose pliers.
The FC10 lock cannot be installed into the file cabinet with the cam mechanism attached. The cam mechanism must be attached after the lock has been inserted and secured. Three components make up the cam: inner cam stop, cam and outer cam shifter. These components can be installed as either key retaining or non-key retaining. The Hon lock for this file cabinet was non-key retaining.
To install, slide the lock into the cutout with the keyway point upwards. Place the inner spacer ring onto the rear of the lock. Attach the nut-retaining washer. Thread the brass nut onto the lock and tighten.
The cam assembly is installed by first sliding the inner cam stop onto the rear of the housing by sliding the brass pin into the hole. The inner cam stop is installed in one direction only.
Slide the cam onto the rear of the cylinder with the word “OUT” facing the rear of the lock.
For this article, I installed outer cam shifter with the cam pin in the non-key retained position. The screw was mounted to secure the components in place. I tested the operation of the lock.
I installed the connecting link into the hole in the cam. The tab portion of the connecting link slides into the hole in the gang bar. The tab is bent up slightly to prevent the link from becoming disengaged. Test the operation of the locking mechanism. When the file cabinet is in the locked position, the cam and gang bar are in the up position. Down is the unlocked position.
Important: Do not use the original connecting link with the FC10 lock.   

For more information, contact your local locksmith distributor or Olympus Lock, Inc., 18424 Highway 99, Lynnwood, WA 98037. Telephone: 206-362-3290. Fax: 206-362-3569. Web Site: www.olympus-lock.com.