Using the drill, drill out the four holes on the underside of the Y carriage [PP-GP0538].
Then take 2x M3x25 SHCS [HD-BT0196] and slide them through two holes on the Y carriage roller support [PP-GP0657]. Make sure the head of the bolt sits inside the cavity on the Y carriage roller support.
Place 1x M3 washer [HD-WA0040] then 1x V-wheel [HD-MS0582] followed another washer on each bolt.
The order should be Y carriage roller support, washer, V-wheel, and washer. Repeat for the other Y carriage roller support.
Using one of the Y carriage roller support assembles and align the bolts with two of the holes on the underside of the Y carriage.
Then loosely fasten the bolts to the Y carriage and repeat for the other side.
Place the Y carriage jig over the Y carriage making sure bolt heads are align with the holes in the Y carriage jig.
Then take the other drill that has the hex bit and change the torque setting to 7.
Then tighten the four bolts to secure the V-wheels to the Y carriage, make sure to tighten until the drill torques out.