Rather than look at the side view of the gears shown in the manual it i sprobably easier to relate the numbers on the chart to the sides of the gears as you are looking at them.
So if you look at the image below The top pait of numbers relate to the top two gears, left and right
The second pair of numbers relate to teh middle pair left and right agaon
The last line will be a single gear on teh end of teh leadscrew which can be on one or the other side depending on teh gear train.