d series maintenance

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The 81 service manual can be found here.
DATE and TIME Facts – KC2-Deadbolt, BE-367, PED-500, PED-1000: • The deadbolt clock circuitry directly uses the battery as its power source. If the deadbolt battery is removed, the clock can keep...
The only routine maintenance required on a biometric hand reader is cleaning.  The platen surface upon which the hand is placed, the side mirrors, and the overhead window should be cleaned with rea...
Von Duprin has a maintenance kit part number 050046-00 and maintenance instruction, part number 941079-00 for 98/99 series devices. There are some common parts between 98/99 series and 22...
The 4040(XP) door closer can be used as a temporary replacement in a 4630/4640 operator to provide manual control of the door while the 4630/4640 closer cylinder is being repaired or a replacement ...
The maintenance kit looks like a tackle box containing many service parts for the L9000, see list of components here.