23
User’s Manual
STOP
STOP
Breakdown
Cause
Solution
Service lift will
go up but not
down!
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
rope.
a) Excessive hoist speed
b) Too low release speed on
fall arrrest device.
A defective fall arrest device
will threaten the safety of the
service lift!
Replace immediately!
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.
D3 Fault in down controller circuit
on traction system
Insert brake lever into the traction
system and lower lift manually.
Test, and if necessary have connec-
tions, wiring, and relays repaired.
D4 Bottom obstruction switch:
a) Bottom obstruction switch is
defective or not connected properly.
b) Bottom obstruction switch is
activated.
a) Test the bottom obstruction
switch connection/function. Replace
if necessary.
b) Move lift up until the bottom
obstruction switch is released.
Button lamp
not lit although
operation is
normal.
E A lamp is defective
Have an electrician replace it.
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 2 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.
4.12 Out of service
1. Securing the service lift:
Bring the service lift all the way down, until the
bottom obstruction device stops the cabin.
2. Turn off the main switch to prevent
inadvertent operation of the lift:
Turn the main switch to the OFF position.
Power supply is now interrupted. Mark the lift
“OUT OF SERVICE”. Contact the service
technician for repair.
