For the whole story, you need something like
https://www.ebay.co.uk/itm/SUPER-MAJOR- ... SwklJa6yKJ
But, assuming the wiring is still complete.. you should see the ignition key below the steering wheel (with a little lever below it, which is the lights switch)
Turn the key, you should see a red light on the instrument panel. The key on mine needs to be turned anti-clockwise, I don't know if they are all like this? Near it, there will be a knob marked 'pull to stop', or it may not be marked at all. Ensure it is pushed in.
Push down the horizontal lever nearest your left ankle. the engine should start.
The throttle lever is on the right immediately below the steering wheel; the clutch pedal works just like a car's; the two brake pedals (one for each back wheel) are side-by-side, and are normally locked together. They can be used separately to help with steering, perhaps on slippery surfaces. The handbrake is just in front of them.
The main gear lever has 3 forward gears + reverse. The other gear lever, horizontal near your right knee, has 'high' and 'low' positions, working with the other lever to give you a total of 6 forward and 2 reverse gears. The positions of the gears are cast into the top of the gearbox, beside the main lever. On some tractors the high-low lever is pulled upwards for low range (gears 1,2 5, and low reverse) and pushed down for high (gears 3,4,6 and high reverse; and on other tractors these positions are the other way round. It depends what type of clutch you have, and there 'should' be a plate beside the lever indicating which you have.
Welcome to the forum, by the way! If you still can't get the thing to start, don't be shy, we will try to help you, The Super Major is a tough old beast, it was becoming somewhat overtaken technically by other brands by 1964 but it is still capable of hard work, it is still reliable even at 50+ years old, and many spares are still readily available if you need them
