You already have a walkthrough, read it carefully and everything will work out.
Grandfather goes to the right, stands on a gray piston elevator and communicates by radio with Dizzy, who moves the right red lever down on the remote control to the right of the phone. And then, similarly, we alternately control Grandpa and Dizzy. The platform is moved horizontally by the remote control to the left of the connection, the next gray piston elevator is controlled by the left red slider lever on the remote control to the right of the connection. Grandfather takes the spray and is transported on a platform with both vertical and horizontal movement (controlled by a remote control with x and y signs) to an invisible passage at the bottom right of this shaft (y - do not bring it all the way to the bottom - otherwise he will die). After passing through an invisible passage through the right wall at the bottom of the shaft, we find another battery. Return the Grandfather back to the green transfer device, through which we send the Dizzy spray.
1. The grandfather falls down from the fact that the platform is moving forward, and the press throws him away. Accordingly, it is necessary to cross at the moment when the press is in the maximum upper position.
2. When we connect the wires, the red light starts flashing. We look at her - as soon as she blinked, it means that the press has completely lowered, and now it will rise.
3. Dizzy has the same light blinking on the far right remote control. Accordingly, we proceed as follows: we put the grandfather on the platform, switch to Dizzy, go to the console, wait for the signal, wait for a second and immediately lift the lever all the way up. A little training, and everything is done successfully. Especially for this purpose, the author has placed a save point below the elevator.
4. You don't need to take off your boots, they don't affect anything (except the balls from the previous location), and grandfather successfully crosses with them.