All cable chain brackets included with your machine are shown below:

 

T-nuts are pre-placed into this single t-track.  Two nuts per bracket.

 

The main Y bracket is positioned on the far right side of the machine. 

Note:  It has several oblong holes you can use zip-ties to cleanly secure wires later on.

 

There are multiple mid-placed brackets to support the chain as it travels the gantry.

Note:  You will find brass heat inserts in these but not all of these will be used.

 

The main X bracket is attached to the rear of the Z carriage using 3 screws.

Note:  It has several oblong holes you can use zip-ties to cleanly secure wires later on.

 

 

 

Next you'll want to attach the X cable-chain:

For ease of installation later, be sure to pick the cable chain (to use as your X chain) that allows the chain to open as shown below.

 

Lastly... Set the Y cable chain aside for now as it will make wire installation much easier and go faster if you don't have to deal with two chains.

The Y chain can be installed at a later point.