How to convert ND44 to ND40?

You will need to purchase the ND40 outside emergency button and plunger, N123-034.

  • Remove the outside lever, for assistance see related solution below
  • Remove the existing ND44 outside button assembly
  • Replace with the N123-034 Emergency Button and Plunger (Z)
  • Replace the outside lever

No change to the Chassis is needed.

Service Manual Screenshot:


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