American Lock 747: Difference between revisions

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Among the largest of the American padlocks, the 747 came in two varieties.  This lock is only available with a protected shackle.  From the front, aside from logos which changed over the years, the 747 looks the same.
= American Lock 747 =


[[File:American 747.jpg]]


The difference between the two varieties is in how the lock is taken apart. One version has a sliding piece of metal on the bottom, the other has a screw-retained core retainer and small metal shield.
{{Lock model
| name = American Lock 747
| Img = File:American 747.jpg
| maker = [[American Lock]]
| lock_type = [[Padlock]], [[Cylinder]]
| lock_design = [[Pin-tumbler]]
| years_produced =
| patent =
| related =
}}


Both versions came as default with a 'restricted' keyway.
The '''747''' is a rekeyable [[pin-tumbler]] padlock with a protected [[shackle]] made by [[American Lock]]. Among the largest of the American padlocks, the 747 comes in two types that change the  method of disassembly. The 747 has remained relatively unchanged throughout the years with the exception of the company logo on the face of the padlock.


[[File:American 747 748 Keyway.jpg]]
__TOC__
<br clear=all>


The screw-retained core version comes apart as follows:
== Principles of operation ==


Remove the screw from the shackle toe hole
:''See also [[Pin-tumbler#Principles_of_Operation|Pin-tumbler (Principles of Operation)]]''


[[File:747 breakdown 1.jpg]]
The 747 is a standard pin-tumbler padlock with five pin stacks.


Retainer is now removed.
== Disassembly instructions ==


[[File:747 Breakdown 2.jpg]]
The 747 comes in two types; one has a screw-retained core and the other has  One version has a sliding piece of metal on the bottom, the other has a screw-retained core retainer and small metal shield.


Sliding core protector is next.
* Unlock the padlock and free the shackle.
* Unscrew the screw in the shackle toe hole.
* Remove the core protector
* Remove the core
* Press down on the shackle to ease tension on the locking balls and tap lock on hard surface to remove the cam.
* Remove the locking balls (they will be free once the cam is removed).
* Remove the shackle retaining screw.  This comes from the factory filled with a grey epoxy. Remove the epoxy then use an allen wrench to remove the screw.
* Remove the shackle and shackle spring.


[[File:747 Breakdown 4.jpg]]
<center><gallery>
File:747 breakdown 1.jpg|Removing the screw
File:747 Breakdown 2.jpg|Core retainer
File:747 Breakdown 4.jpg|Sliding core protector
File:747 Breakdown 5.jpg|Removing the core
File:747 Breakdown 7.jpg|Push down on shackle
File:747 Breakdown 8.jpg|Cam removed
File:747 Breakdown 11.jpg|Removing shackle reatiner
File:747 Breakdown 12.jpg|Shackle removed
File:747 Breakdown 13.jpg|Shackle spring removed
</gallery>
</center>


Now the core.
== Gallery ==


[[File:747 Breakdown 5.jpg]]
<center><gallery>
File:American 747 748 Keyway.jpg|Keyway
File:747 Breakdown 9.jpg| Rear-view of [[cam]]
</gallery>
</center>


Press down on the shackle to ease tension on the locking balls, and tap lock on hard surface to remove the cam.  The locking balls will fall out once the cam is removed.
== References ==
<references />


[[File:747 Breakdown 7.jpg]]
== See also ==
* [[Pin-tumbler]]
* [[Padlock]]
* [[American Lock]]


Side view and top view of the locking cam.
[[Category:American Lock|747]]
 
[[Category:Padlocks]]
[[File:747 Breakdown 8.jpg]]
[[Category:Pin-tumbler locks]]
 
[[File:747 Breakdown 9.jpg]]
 
Now remove the shackle retaining screw.  This comes from the factory filled with a grey epoxy (like J.B. Weld).  Use a pointed pick to remove the epoxy, then an allen wrench to remove the screw.
 
[[File:747 Breakdown 11.jpg]]
 
The shackle and spring now can be lifted out of the lock.
 
[[File:747 Breakdown 12.jpg]]
 
[[File:747 Breakdown 13.jpg]]

Revision as of 21:53, 29 January 2015

American Lock 747

American Lock 747
American 747.jpg
Name American Lock 747
Manufacturer American Lock
Lock Type Padlock, Cylinder
Lock Design Pin-tumbler


The 747 is a rekeyable pin-tumbler padlock with a protected shackle made by American Lock. Among the largest of the American padlocks, the 747 comes in two types that change the method of disassembly. The 747 has remained relatively unchanged throughout the years with the exception of the company logo on the face of the padlock.


Principles of operation

See also Pin-tumbler (Principles of Operation)

The 747 is a standard pin-tumbler padlock with five pin stacks.

Disassembly instructions

The 747 comes in two types; one has a screw-retained core and the other has One version has a sliding piece of metal on the bottom, the other has a screw-retained core retainer and small metal shield.

  • Unlock the padlock and free the shackle.
  • Unscrew the screw in the shackle toe hole.
  • Remove the core protector
  • Remove the core
  • Press down on the shackle to ease tension on the locking balls and tap lock on hard surface to remove the cam.
  • Remove the locking balls (they will be free once the cam is removed).
  • Remove the shackle retaining screw. This comes from the factory filled with a grey epoxy. Remove the epoxy then use an allen wrench to remove the screw.
  • Remove the shackle and shackle spring.

  • Removing the screw

  • Core retainer

  • Sliding core protector

  • Removing the core

  • Push down on shackle

  • Cam removed

  • Removing shackle reatiner

  • Shackle removed

  • Shackle spring removed

Gallery

  • Keyway

  • Rear-view of cam

References


See also

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