Installation method for double-wheel slot milling machine

The invention discloses an installation method for a double-wheel slot milling machine. The installation method comprises the following steps of: rotatably installing an upper chassis on a lower chassis, installing a lower mast at one end of the upper chassis, and adjusting an angle of the lower mast through a tower lifting oil cylinder; hoisting a counterweight, and installing the counterweight at the other end of the upper chassis; hoisting a pump station, placing the pump station at the upper end of the counterweight and fixedly connecting the pump station with the counterweight; hoisting double winches to the position above the upper chassis and fixing the double winches; installing a main crown block, a slag pipe winch and a top auxiliary crown block at the end, away from the lower mast, of an upper mast; aligning the lower mast and the upper mast, and inserting a connecting pin shaft; hoisting a rubber tube guide wheel to the position below the upper mast, aligning the rubber tube guide wheel to a pin s