American Dryer Corp. ADH-120 - Manual (Page 31)

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e. Once the connections are ALL made, turn the activating bracket assembly clockwise (CW). The entire
assembly should turn freely without binding or excessive force. The bottom of the damper assemblies
should both meet approximately in the center of the plenum. The damper assemblies should meet almost
flush. Refer to figure 3. If the dampers resist closing or if they DO NOT meet almost flush, it may be
necessary to move either one or both of the linkages up or down on the damper flange depending on the
adjustment required.
f. Once proper adjustment has been accomplished, power up the machine and activate a cycle. Observe
the closing of the damper assembly. Again the dampers must meet. If they DO NOT it may be
necessary to readjust again. The misalignment may also be due to loose setscrews. If proper adjustment
cannot be obtained, contact the technical support department at ADC for assistance.