Specifications

26
AVANTI Service Lift for Wind Turbines
6.3 Yearly inspection
6.3.1 Pinions
Check carefully that the pinions are free from
deterioration, damage or abrasion.
Wear limit:
To evaluate the wear of the pinion, “A” dimension
measured on the primitive line shall range between
24.41 and 25.7 mm (see figure)
Pinion replacement criteria is shown on table below:
DIMENSIONS
(mm)
NEW PINION
(mm)
CHANGE PINION
( mm)
A 25.70 < 24.41
6.3.2 Ladder rack
Check carefully that the rack is free from deterioration,
damage or abrasion.
Check that the ladder mast has no cracks, dents or
damages.
6.3.2.1 Wear limit:
Using a calibrated rod of Ø 12 and check that
dimension control “B”, as shown in the picture, is
between 32.69 and 34.59 mm. Measure the rack wear
on each mast section.
Rack replacement criteria is shown on table below:
DIMENSIONS
(mm)
NEW RACK
(mm)
CHANGE RACK
( mm)
B 34.59 < 32.69
PRIMITIVE
LINE
A (minimum)
24,41
A (nominal)
25.70
B
B