26
STOP
STOP
AVANTI Service Lift for Wind Turbines
Breakdown
Cause
Solution
Service lift will
go up but not
down!
DANGER!
Irresponsible behaviour
jeopardizes system safety!
D1 The service lift has
encountered or is stuck
on an obstacle.
Carefully take the service lift up and
remove the obstacle.
Test the operational safety of affected
platform components.
Inform the supervisor.
D2 The fall arrest device is
holding the service lift on the
wire.
a) Excessive hoist speed
b) Too low release speed on
fall arrest device.
a) + b) Take the service lift upwards to
relieve the safety wire rope.
unlock the fall arrest device
by turning the unlocking lever,
and test its function
Functional test when the
lift is back on the ground:
Replace the hoist and fall
arrest device and return
them for testing.
DANGER!
A defective fall arrest device will threaten the safety of the service lift!
Replace immediately!
D3 Fault in down controller circuit
on traction hoist
Pull the lever upwards.
The service lift moves
downwards.
(See details in section 7)
Test, and if necessary
have connections,
wiring, and relays
repaired.
Green lamp
not lit although
operation is
normal
E The lamp is defective
Have an electrician replace the bulb.
Hoist goes down
when up button is
pressed and up
when down button
is pressed.
F Two phases changed
in the supply
Have an electrician switch the two
phases in the plug
Loud noise and /
or smoke coming
from hoist motor
G Brake closed or partially closed
WARNING !
Damage of hoist brake leading to brake
function lost.
Stop work immediately!
Call supervisor for advice and potential
repair of hoist.
If these steps do not identify the cause and rectify the fault:
Consult a certified technician or contact the manufacturer.
DANGER!
Unplug the power
supply before
opening the power
cabinet.
AT00016288 Shark L AECO EN update.indd 26
11/14/2018 4:02:47 PM