GMV GLT 81-21 - Page 77

10991793EN
-
19.10.2022
4.0
ENG
GLT Ω L IFT
O PERATION M ANUAL
Page | 77
For all other Ropes :
- The suspension ropes that show obvious degradation or wear or excessive number of broken wires
must be replaced, any of the following occur first:
- 26 broken wires within a length of 30 x d
(30 times the diameter of the rope, e.g., Ø 6,5 = 195 mm, Ø 9 = 270 mm, Ø 10 = 300 mm)
- 13 broken wires within a length of 6 x d
(6 times the diameter of the rope, e.g., Ø 6,5 =39 mm)
- The reduction of the diameter of the rope, even if in only one point, exceeds 6% of their nominal
diameter,
- In case of worn or corroded ropes, it is therefore necessary to reduce the time interval between
maintenance controls, and the count shall be considered as broken the wires that have a diameter
reduction, visually valued, 50% less than the original.
Before installing a new rope, verify that the grooves of the pulleys have not been worn or deformed by
the old rope.
 Check during each maintenance, tension and stretching of ropes. In case of anomalies, re-establish the
original condition.
III.f Well lighting
 Check that all the lamps switch on and that the switches and sockets in the well are working
properly.
III.g Flexible cables
 Check visually that the flexible cables do not have excessive abrasions or cuts in the sheath or
have uncovered wires

Check that the half-travel fixing is properly anchored and tightened.
III.h Overspeed governor and tension pulley
 Verify that all the elements are well lubricated and free in their movements and that they are not
damaged.
 Verify that pivots and pulley bearings don’t make noise or abnormal vibrations, otherwise clean
and grease them.
 Verify that the grooves of the pulleys have not been worn or deformed by the old rope.
 Verify the condition of the rope (as indicated in point III.e Ropes)
 Verify fixings to the safety gear

Verify that the overspeed governor and the safety switch are working properly.
IV. H EADROOM , CAR ROOF
IV.a Electrical safety devices
 Check, manually and using a tester, that all installed safety devices and contacts are working,
free in their movements and where necessary lubricated
IV.b Final limit switch
 Check that the final limit switch (SEX) is clean and in good condition
 Check that the final limit switch works properly.
- Exclude the stop device on the higher floor as indicated in the manual of the control panel and
move upward the system
- Few centimeters above the higher floor level, the final limit switch is actuated, open the
contact and must prevents the lift movement.
IV.c Pulleys
 Check that pivots and pulley bearings don’t make noise or abnormal vibrations, otherwise clean
and grease them.
 Check that the grooves of the pulleys have not been worn or deformed by the old rope.
 Check the alignment and the position of the pulleys.

Check that the protection devices are present, properly installed and working