O
PERATING MANUAL
DAB530
M
AINTENANCE
/
SERVICE
ThyssenKrupp Aufzugswerke GmbH
7.11.1
Drawing out of the safety gear
If the safety gear on the elevator car or counterweight has triggered, it can
occur that the driving force of the traction sheave is insufficient to move the
elevator; the ropes slip through.
Perform the following measures in this case:
1.
Switch off the drive and control system.
2.
Remove the safety cover on the rotor of the drive.
3.
Use the clamping device to lift the transport carriage of the hoist
downwards onto the machine base frame. Attach the ropes loosely to the
transport carriage. See Fig. 7.11.1+2.
4.
Raise the transport carriage slightly and place the hoist on the machine
base frame in such a way that the transport carriage sliding guides lie at
the hoist. See Fig. 7.11.1+2
5.
Bolt the hoist to the machine base frame.
6.
Place the transport carriage of the hoist in the start position according to
the pulling direction.
b)
Tension upwards, place transport carriage in device downwards.
b)
Tension downwards, attach transport carriage in device upwards.
7.
Use rope clamps to clamp the ropes to the transport carriage. The rope
clamps on the hoist must be open during pulling. Screw on the guide
stirrup bolts in such a way that the transport carriage can still be moved
up and down.
8.
Remove the transport eyebolt, place the lowered hydraulic cylinder on
the pressure side in the hoist.
9.
Pump the jack to move the transport carriage in the desired direction until
the ropes on the pull side are tensioned.
(The drain valve on the hydraulic cylinder must be closed)
Open the shoe brake at the drive with the brake release lever and hold
open during the pumping operation.
10.
Continue pumping until the grip wedge has loosened or the end of the
lifting path on the hoist is reached.
If the safety gear lock is free, close the brake and remove the hoist.
Otherwise continue the sequence.
11.
Use the rope clamps to clamp the ropes to the hoist, then open the rope
clamps on the transport carriage.
12.
Lower the hydraulic cylinder, reset the transport carriage.
13.
Repeat the pulling operation until the safety gear lock is free.
14.
Remove the device; mount the protective device.
15.
Switch on the drive and control system.
NB:
before reconnection
of the installation, ensure that the cause of the
malfunction has been remedied and that the installation is in proper working
order.
53
Version 03/2017
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