The adjustment is at the pump, not the 2 bolts on the bars to the sticks. That just changes the position of the steering levers. Its an adjustment ON the pump, not the pumnp its self

Its easy to do.
I don't know how to tell the series, but your dealer should be able to look it up from your serial number. Triangular lights means G or higher. The 2 speed switch is there just as an option, as is bucket positioning and Hi Flow. They are there but aren't always fitted from the factory. Not all machines can even have 2 speed, but its still there, i guess it helps save costs of building separate handles for each machine.
Sorry i can't be of more use....