Note: In general situation, there is no need to adjust the shims aer changing the mount. If you still need to adjust the flange back distance, please refer to the next section Flange Back Adjustment.

1.Mount Installation

Step One : Please make sure that the Lock Lever Socket is at the top le side (see in the picture).

Step Two : Align the breach under the mount to the embossed screw on the mount plane, lay down the mount.

2.Mount Installation

Step One : Please make sure that the Lock Lever Socket is at the top le side (see in the picture).

Step Two : Align the breach under the mount to the embossed screw on the mount plane, lay down the mount.

Step Three : Press the Lock Buon and rotate clockwise till hear a sound of "claer".

Step Four : Rotate the Lock Ring clockwise to the top. The mount is locked. 

3.Install / Disassemble the Rear Filter

Hold the handle of the rear filter and you can pull in or out the filter.