How to adjust the wheeled tractor front beam
Both ends of the chain just touch the ground, move the ruler, so that '0, point to the pointer.
And then turn the two front wheels (or push the car forward), so that the front beam with the wheel to the back, to reach the height of the front, then the chain ends just touch the ground.
The vehicle parked in the flat ground, the front wheel in the direction of direct drive, the front beam on the front wheel between the two (placed in the front axle axis height), both ends of the people, the contact arrived in two rounds
Check and adjust the front wheel before the beam, the main knuckle and the bushing with the wheel bearings and tire tension and tire pressure should be normal.