27
Breakdown
Cause
Remedy
Platform moves down
DANGER!
but not up.
Thoughtless behaviour
endangers the safety
of the installation!
B1 The platform has become
Move the platform carefully downwards
caught on an obstacle.
and remove the obstacle.
Check platform parts affected for their
operational safety.
Inform the supervisor.
B2 Overload, the load limiting
Check load and if necessary reduce or
device has switched off the hoist. distribute more evenly.
B3 Lifting rope run out
Install lifting rope again.
with platform set down.
Check why it had run out,
avoid repetition, e. g. by installing
longer lifting rope(s).
B4 Upper limit switch:
a)
Limit switch defective
a) Check switch connection/function;
or not connected.
if necessary replace.
b)
Limit switch activated.
b) Move down until the limit switch
is free.
B5 One phase is missing.
Check fuses and leads.
B6 Error in the UP control circuit
Check connections, wiring, contactors
of the central control.
and replace if necessary.
or the TIRAK
®
hoist.
B7 lack of motor power
a)
Defective starting capacitor
a) Have starting capacitor checked/
replaced by an electrician.
b)
Defective centrifugal switch
b) Check the current at the auxiliary
(starting capacitor overloaded)
winding in the terminal box.
Repair by the manufacturer or
a hoist workshop.
Excessive motor noise
C1 Overheating
Individual causes as well as
their correction
or
see page 26 point A5.
hoist is crunching,
C2 Dirt in the rope drive
Attention!
Continuing travel can lead
Replace the TIRAK
®
to damage on the rope
as urgently as possible and
and the rope drive.
have checked/repaired by the
manufacturer or a hoist workshop.
although UP and DOWN
travel are possible.
STOP
On
single phase
motors only
DANGER!
Always pull
the plug out be-
fore opening a
terminal box or
a pendant or
central control!