Installation instructions for lift control cables

SABIX® Lift and SABIX® Lift ST

Application and use in buildings 

  1. In case that the cables are placed in shafts, two different methods are recommended:
    Placement of cables from machine room
    The placement of the cables from the machine room has to be executed in a way that the cable is led into the shaft in winding direction. In order to avoid upsetting deformation, it is advisable that a second person is in the pit and enables a perfect installation with the help of a cord. 
    Placement of the cables from the shank pit or the first stop 
    Herewith, the winding direction for unwinding has to be observed.
    Note: With both methods the pulling-in of the cables has to be done with a minimum of bend. In order to avoid torsion or buckling, the placement of the cable has to be done carefully.
  2. In order to guarantee a torsion-free installation, the cable has to be suspended freely for 12 h in the shaft before being finally fixed. The lower cable end is not allowed to lie on or to be in contact with the pit sole. If the cable is longer, the lower cable end (min. 0.3 m above the sole) must be looped or put up with a weight. Any material can be used as weight but it should not come to more than 15 % of the cable weight. After having been suspended the cables shall be marked parallel towards the shaft wall and on the same side. Thus a twist-free fixing of the cable is afterwards possible. 


Hanging up the cable
  1. If the cables are pulled into the shaft, they have to be unwound tangentially from the drum. An axial unwinding from the drum causes torsions of the cable and finally can lead to operational disturbances.
  2. The free space between lift cabin and shaft bottom shall be big enough and has to be fully used for the loop height of the cable. The cables have to be suspended at the lift cabin in the course of the natural bow. 
  3. A natural hanging diameter of the loop has to be guaranteed. 


Fixing of the cables 
  1. At any rate large-surface clamps have to be used for the fixing of the cable. The sheath shall not be squeezed , the clamp must be seated firmly on a large surface. There should be at least one suspension at the shaft head and at the lift cabin. Additionally the carrying element has to be supported separately (at both cable ends). In case that the suspended cable length is more than 40 m, an additional suspension should be in the middle of the shaft. 
  2. The fixing point at the shaft wall has to be at least 2 m above the middle of the travel. At the same time the fixing points of the cables at the lift or at the shaft wall have to be arranged rectangular towards the runoff plane of the cable and with the same distance parallel to the rail axis.
  3. With unsteady running behaviour that means the cable moves out of the fall line during operation, the control cable has to be slightly twisted at one of the fixing points until a perfect run of the cable is given. 
    Note: Additionally the run of the cable has to be controlled again after the initial operation of the lift.
  4. If the lift installation requires the installation of several control cables, it is recommended due to operational reasons that the individual cables have to be hanged up in a way that the different loops have a level difference of approx. 15 cm ( hang up step-by-step ).  
  5. The cables are not allowed to be tied up over their suspended length, as otherwise their free run is impeded.


General notes
  1. The cables are only allowed to be applied with temperature ranges mentioned in their specifications. 
  2. The inner bending radius is not allowed to be lower than the cable diameter mentioned in the specification. Furthermore, the given bending radius of  the cable (equally mentioned in the cable specification) has to be kept.
  3. The max. hang up length is dependant on the corresponding  carrying element in the cable (mentioned in the cable specification) and is not allowed to be exceeded.
  4. In order to reach a perfect and long service life of the lift control cables, they have to be treated and installed with the utmost care. 

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