Replacing a FUHR Automatic Roundbolt-Style Multipoint Lock
Replacing a FUHR Automatic Roundbolt-Style Multipoint Lock – All About Doors and Windows
FUHR no longer ships its products to the United States, and direct replacements for FUHR products are not readily available. All About Doors & Windows can help you find a replacement for your FUHR multipoint lock.
This article will guide you in replacing your FUHR automatic multipoint lock with roundbolts. This article specifically details the replacement of parts #499014599 and #499014799 with new HOPPE locks.
The specs of both locks are listed below. The specs of their HOPPE replacement locks are in parenthesis:
499014599 –> Replaced by: 4990246499014799 –> Replaced by: 4990247Backset: 45mm (45mm)Backset: 45mm (45mm)Overall Length: 77″ (72-1/4″ — 78-3/4″)Overall Length: 80″ (72-1/4″ — 85-5/8″)PZ: 92mm (92mm)PZ: 92mm (92mm)Top Roundbolt Position: 31-3/8″ (32-1/8″)Top Roundbolt Position: 32-1/8″ (32-1/8″)Bottom Roundbolt Position: 26-1/4″ (26-5/16″)Bottom Roundbolt Position: 26-1/4″ (26-5/16″)Handle Height: 36″ (36″)Handle Height: 39″ (lock bottom to handle: 36″)
The replacement process for both of these locks is the same, with a few minor details, which will be pointed out in the instructions.
*Note: The HOPPE replacement locks are not automatic like original FUHRs. They will not automatically lock when door is closed. Handle must be cocked up and thumbturn engaged to secure door.
Summary of Replacement Process (Detailed Steps Follow)Remove existing lockTrim new lock to fit door panelInstall lockFor lock #499014599:Move top strike up about 3/4″ or as needed to line up with top roundboltModify or replace deadbolt strikeFor lock #499014799:Fill gap of exposed mortise at bottom of lock with approximately 3″ of extra faceplate trimmed off top of lock in step 2
Detailed Steps of Replacement ProcessUse a pencil to mark height of handle and alignment line on edge of door panel before removing lock. New lock has to be at same handle height for roundbolts to line up with jamb-side strikes.Loosen set screws on base of handles, and remove handles.Remove interior/exterior escutcheon plates.Unscrew cylinder screw on door edge (where latch is located), and remove cylinder.Lock runs entire length of vertical edge of door. Remove all screws.Remove the multipoint lock from the door edge.Connect the top extension of the new HOPPE lock to the bottom gear.Place new lock into mortise in door edge, making sure handle alignment line matches up to line drawn in step 1. *Note: Depending on the year your FUHR lock was made and the exact dimensions of the roundbolt boxes, you may need to chisel the mortises for the roundbolt boxes to slightly englarge them to fit the new HOPPE lock.Measure from handle alignment line to top of door panel, and mark with permanent marker on the lock where it needs to be trimmed to fit in the door.Remove door, lay lock on table, and double-check measurement from handle alignment line before you trim it.Using a hacksaw, carefully trim top of lock where needed. **This step requires caution and knowledge of safety procedures. Have another person help hold the extension or use a clamp and pliers to hold extension while trimming. Extension will be hot during and after cutting.
Use a file or sandpaper to smooth cut edge of trimmed extension piece.Place HOPPE lock back into mortise in door, being careful to align lock with handle alignment mark. Screw loosely in place–install a few screws up and down the length of the lock.Insert a handle and spindle in the handle hole to check lock operation while door is open. *Note: new lock has a mishandling device (between deadbolt and spring latch), which must be pushed down in order to engage locking points. While door is open, push down with fingers.If door functions properly, unlock lock and install and tighten all screws running up and down length of faceplate.With door closed, gently engage locks. Check that strike plates match up with locking points.If your original lock was #499014599:Top roundbolt strike plate will likely need to be moved up about 3/4″ within the door jamb. Unscrew the strike plate, and gently engage the locks so the roundbolt makes a light mark on the door jamb. Mortise out the door jamb where the mark is, and reinstall strike plate.Original deadbolt strike will likely not work for new HOPPE lock due to a different deadbolt location. You can use a rotozip or hacksaw to carefully enlarge the deadbolt hole to modify the original strike to work; alternatively, you can replace the strike with a new HOPPE strike (available on our website as part #8784699).If your original lock was #499014799:Original strike plates should not need to be replaced or removed.Due to the new HOPPE lock being shorter on the bottom than the original FUHR lock, there will be about 3″ of exposed mortise at the bottom of the door edge. Measure this exposed gap and trim to length the excess faceplate trimmed off the top of the lock. Screw or glue this extra piece of faceplate into the door edge to cover the gap.
Replacing a FUHR Automatic Roundbolt-Style Multipoint Lock
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