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How to Replace a Fuhr Hook Multipoint Lock

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How to Replace a Fuhr Hook Multipoint Lock Powered By Docstoc
					Allaboutdoors.com                                                                   Published 12/6/2011


                    Fuhr Hook Version Multipoint Lock Hardware
                            3-Point Active Door Lock (1 Deadbolt, 2 Hook-bolts)

                For Questions or Concerns, please refer to All About Doors & Windows
                                   http://www.allaboutdoors.com




     Terminology to Understand
     Backset                     Distance from the Faceplate to the center of the Key Cylinder
     Handle Height               Distance from bottom of lock to center of Handle
     Hook-bolt, Tongue           Type of Locking device
     Strike                      Metal Plate on jamb that latch enters to secure door
     Reversing Latch             Necessary to change Handing of door
                                 Adjustment of Automatic Roller and converting to Semi-
     Hardware Adjustment
                                 Automatic System or Manual System


The information in this article is provided by All About Doors & Windows of Kansas City and will
describe the best option for replacing a FUHR Manual Hook-bolt Multipoint Lock with a Backset of 1-
3/8” (35mm). Fuhr is no longer shipping their door lock products to the United States, and locks will
need to be replaced with another brand. The information will apply equally to doors with different
backsets.

As with all Single and Multipoint Locks, it is imperative to understand the important measurements of
your particular lock – they are not all the same. The locations of the Latches, Handles, Overall Lengths
and Backsets will vary among products. Be sure and choose the correct product that is best suited for
your replacement. We try and list all known FUHR Multipoint locks and, with each, the best
replacement.

If you are attempting to replace a Single Point Lock this article is NOT the one you want.

If you are attempting to replace a Manual Hookbolt Multipoint Lock please continue.


Basic Comparison:

Replacing a FUHR Manual Hookbolt Multipoint Lock – 35mm Backset
Best Replacement Option: HOPPE Manual Tongue Multipoint Lock – 35mm Backset

The diagrams and photos in this article show locks with 35mm (1 3/8 inch) Backsets. The Backset is


               All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                         Published 12/6/2011

the distance from the front of the Faceplate to the center of the key or lock cylinder.

Please note that not every Multipoint Lock has a backset of 35mm, and to avoid a major construction
operation you will need to replace your lock with one that has the same Backset.
The diagram below shows a side-by-side comparison of the FUHR Manual Hook-bolt Multipoint Lock
(Below left) and the HOPPE Manual Tongue Multipoint Lock (below right).

Notice that the majority of their measurements are not the same. There are however, some similarities.




               All About Doors & Windows    |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                   Published 12/6/2011



One major difference between the FUHR Manual Hookbolt Multipoint Lock and the HOPPE Manual
Tongue Multipoint Lock is the style of latches. Both latches extend horizontally, approximately 3/4 of
an inch when the locking mechanism is engaged, but they look very different (see above). With only
1/16 of an inch difference, both styles of latches are very similar in width and projection.

Another difference between the two Locks is their Overall Length and Handle Height. This is not a
problem. Notice in the diagram below that when installed in a door properly, the Handle Holes will line
up exactly. This will ensure that the Bottom Tongues and Handle Height will line up exactly. However,
the tops and bottoms of the Locks themselves do NOT line up exactly. Now you just need to score the
Top and Bottom of the HOPPE Faceplate where the FUHR existed and cut the large sections off.
Follow the step-by-step procedure below to properly install the HOPPE Manual Tongue Multipoint
Lock.


Summary of Replacement Process (Detailed Steps Follow on Next Page)

   1. Remove old lock

   2. Trim new lock to match length of old lock

   3. Install new lock

   4. Install trim, handles and keyed cylinder

   5. Check operation of lock

   6. Adjust / relocate strike plates on doorjamb, chiseling as needed, to line up with new lock




              All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                Published 12/6/2011



Detailed Step-by-Step Installation Instructions

   1. Secure the HOPPE Extension Arm to the Gear Box, making sure to connect the Sliding Arm to
      the Sliding Arm Connector. (See below)




   2. Remove the existing FUHR Hook-bolt Multipoint Lock from your door and lay it over the
      Hoppe replacement. Use the square spindle attached to the Handle, and insert it through both
      square Handle Holes. This will align both locks together.

   3. Compare the Tops and Bottoms of the Locks. The HOPPE should be approximately 8-1/8
      inches longer at the Top, and 6-3/8 inches longer at the Bottom.




             All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                Published 12/6/2011




   4. Score the Faceplate at the top and bottom of the HOPPE Manual Tongue Multipoint Lock for
      cutting. (See above)

   5. Using a Hacksaw cut the large sections off where you scored the Faceplate. Approximately 8-
      1/8 inch from the top and 6-3/8 inch from the bottom.

             All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                   Published 12/6/2011



   6. After you have cut the top and bottom of the HOPPE Manual Tongue Multipoint Lock you can
      install and secure it to the door. Do not over tighten.

   7. Install hardware Trim / plates, handles and keyed cylinder. Do not over tighten. Check
      alignment of shoot-bolt.

   8. Tighten handle-set screws and check lock for proper function. The door should close, and
      Tongue Latch should lock into position when handle is lifted.

   9. Continue with the Article to address the Strike Plates.
      Note: After lock is installed, it may be necessary to relocate strikes or make adjustments to
      them. The deadbolt may not go into the strike on some applications. See Details below if
      needed.




Once you have secured your HOPPE Manual Tongue Multipoint Lock to the door the Bottom Tongue,
Deadbolt and Spring Latches should all line up with the preexisting Strike Plates.

             All About Doors & Windows    |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                  Published 12/6/2011




If for some reason the HOPPE Manual Tongue Multipoint Lock’s Deadbolt and Spring Latch does
NOT line up with the FUHR Strike plate or you are unhappy with the look, you can relocate the strike
or purchase a Hoppe Product suitable to the color or finish desired.

The length of the FUHR and Hoppe strike plates are the same and HOPPE does offer a curved Strike
Plate to reduce damage to the doorjamb. However, notice that the openings of the two Strike Plates are
slightly different. (See below)




              All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                 Published 12/6/2011




Finally, the positioning of the Top Tongue on the HOPPE Lock will not line up exactly with the
preexisting Hook-bolt Strike Plate. It will be slightly higher than the previous latch.


              All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                 Published 12/6/2011

This may require you to chisel out a small portion of the doorjamb.

First you will need to remove the Top Hook-bolt Strike Plate that was used with the FUHR Lock. Then
you can chisel out a small section, extending the mortise in the doorjamb upward by 1/2 inch or less.
When you have found the correct length and depth you can reinstall the Hook-bolt Strike Plate in its
new position.




              All About Doors & Windows   |   1901 Cherry St. Kansas City, MO 64108-1714
Allaboutdoors.com                                                                        Published 12/6/2011



The information in this article may not apply to all Fuhr locks or accessories. However, when followed,
we hope you have no issues with replacing your FUHR lock with your new HOPPE Manual Multipoint
Lock. If you do not understand the information in this article completely, please consult someone who
does.

DO NOT attempt to replace your Multipoint Lock yourself if you are unsure of anything in this article.
Other options may be available, but not listed. All About Doors & Windows believes we have covered
the most important steps required for a do-it-yourself installation. If you find that we have omitted
something of value or have questions please let us know. As with all home improvements be sure and
wear protective eyeglasses and follow the instructions provided with all tools or equipment.




              The staff at All About Doors & Windows spends a considerable amount of time
              creating articles and providing quality parts and hardware. We know you can find
              many of these products elsewhere and we appreciate your business. We thank you for
              your time and hope you will continue being a satisfied customer.




              All About Doors & Windows     |   1901 Cherry St. Kansas City, MO 64108-1714

				
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Description: How to Replace a Fuhr Hook Multipoint Lock