14
AVANTI Service Lift for Wind Turbines
3.6.10 Maintenance cover
Maintenance cover allows safe and fast inspection of
traction and safety wire ropes from inside the cabin
while travelling.
3.6.11 Bottom hatches
Bottom hatches can be opened from both sides,
thus allowing egress and ingress from underneath.
Bottom cabin hatch opens inwards, and bottom
obstruction device hatch opens outwards.
Each of them has a safety switch that interrupts
control when hatch is opened.
Once top hatches and ladder access door are open,
clear area is at least 500 x 500 mm, and ladder
becomes totally accessible.
3.6.12 Top hatch
Top hatch can be opened from both sides, thus
allowing egress and ingress from above.
It has a safety switch that interrupts control when
hatch is opened.
Top obstruction device hatch opens outwards.
Once top hatches and ladder access door are open,
clear area is at least 500 x 500 mm, and ladder
becomes totally accessible.
3.6.13 Bottom obstruction device
Bottom obstruction device interrupts descent if:
• It encounters an obstacle.
• It reaches the bottom platform.
Ascent will still be possible, for instance to remove
the obstacle. In order to put the service lift on the
ground, the contact plate functionality can be
bypassed with the override bottom obstruction
device switch located on the cabin control box. To
do so, turn the override bottom obstruction switch
key while pressing the down button.
Release the DOWN button as soon as the
rubber bumpers hit the floor. Otherwise
the service lift or the installation may get
damaged.
Direct evacuation to ladder is possible at
any position along the WTG.
