What is LCN replacement part number for a Dor-O-Matic number 81007-90x?
81007 is the old DOM number for a Sr Swing Motor gearbox. The -90x indicated the Hand, a -901 is RH and a -902 is LH.
If you have a 81007-901 - The LCN replacement part number would be, Series #-3454 X RH motor gearbox. ie.... 9540-3454 X RH
If you have a 81007-902 - The LCN replacement part number would be, Series #-3454 X LH motor gearbox. ie....9540-3454 X LH
Additional information: At one time DOM had two (2) Sr Swing gearboxes. One was DOM part number 81002-90(X) known as the standard force and the second was a reduced force MGB (81007-90(X)).
The standard force had a max opening of approximately 14 pounds of force while the reduced force had had approximately 11 pounds of opening force.
In 2019 LCN went to offering just one Sr. Swing Gearbox. All Senior Swing models made after November of 2009 have the reduced open force spring, and is called the "standard" gearbox .
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