Method for installing an elevator

A method for installing an elevator, preferably an elevator without counterweight, in which method the elevator to be installed comprises a number of diverting pulleys in the upper part of an elevator shaft or equivalent, a number of diverting pulleys in the lower part of an elevator shaft or equivalent and a number of diverting pulleys on an elevator car, wherein

• the elevator car or a partially completed elevator car is parked in the upper part of the elevator shaft,
• the rope portions of the hoisting ropes between the elevator car and the diverting pulleys in the upper part of the elevator shaft are rigged so that they pass via the diverting pulleys in the upper part of the elevator shaft and the upwards-directed diverting pulleys on the elevator car,
• the elevator car or the partially completed elevator car is moved to the lower part of the elevator shaft while at the same time supplying ropes from rope reels into the hoisting rope portions between the elevator car and the upper part of the elevator shaft, said rope portions becoming longer due to the movement,
• the rope portions of the hoisting ropes between the elevator car and the diverting pulleys in the lower part of the elevator shaft are rigged so that they pass via the diverting pulleys in the lower part of the elevator shaft and the downwards-directed diverting pulleys on the elevator car.