Method for constructing an elevator, guide rail installation apparatus, guide rail installation arrangement and method for installing a guide rail of an elevator

A method comprising:

• installing elevator components in a hoistway, the installing comprising installing
• a vertically oriented guide rail line,
• an elevator car mounted on a first side of the guide rail line,
• a counterweight,
• a hoisting machine directly mounted on and detachably fixed to a second side of the guide rail lines above the elevator car independent of landing doors of the hoistway in a first position, the second side of the guide rail line opposite to the first side, and
• a first hoisting roping for being moved by the hoisting machine, the installing further comprising connecting the first hoisting roping to the elevator car and the counterweight;
• and thereafter
• first transporting passengers and/or goods with the elevator car vertically in the hoistway while the hoisting machine is in the first position;
• and thereafter
• stopping the first transporting;
• and thereafter
• removing the hoisting machine from the first position and the first hoisting roping from the hoistway, the removing comprising disconnecting the first hoisting roping from the elevator car and the counterweight;
• installing the hoisting machine directly mounted on and detachably fixed to the guide rail lines above the elevator car independent of landing doors of the hoistway in a second position which is higher than the first position, and a second hoisting roping for being moved by the hoisting machine, the installing comprising after the aforementioned disconnecting the first hoisting roping from the elevator car and the counterweight, connecting the second hoisting roping to the elevator car and the counterweight;
• and thereafter
• second transporting passengers and/or goods with the elevator car vertically in the hoistway while the hoisting machine is in the second position, the second transporting comprising moving the elevator car with the hoisting machine and the second hoisting roping.