This document covers the procedure for fitting an Airmaster standard slipring assembly to its dedicated mount plate.
Normally, the slipring is mounted to the spinner backplate, but when a spacer, adapter, or extension assembly is used, it may require fitting to the mount kit assembly instead to contact the sensor-brush block. In these cases, the slipring is fitted to a dedicated mount plate (supplied with the mount kit assembly). Which installers must attach to the mount kit assembly before installing the propeller hub.
Pre-Fit Std Slipring to Plate 