ABB ACH400 Series Retrofit Manual page 19

R3 and R4 Frame Sizes:
 Prepare the cover by cleaning any dust or oil from the top inside
edge of the cover.
 Apply the supplied gasket material to the inside edges of the cover
at the top by removing the backing and placing the gasket as shown.
Note the top edge of the cover will match the edge of the gasket and
the gasket will be snug against the inside bend of the cover.
 When finished, the gaskets will look as shown.
Mount the cover onto the bypass unit by aligning the mounting

holes. Make sure the disconnect handle is in the "Off" position and
move the handle as needed to engage the disconnect shaft. The tab
on the cover must also engage the bottom of the drive front cover.
 Reinstall the cover screws.
19