Gearless Lift Machine
WSG-08
with caliper disk brake
Operating Instructions
Seite/page
27
Datum/date
12.08.2016
Stand/version
0.18
Änderungen vorbehalten! Subject to changes without notice!
9.10. Testing the brake system to EN 81
Ringschrauben M
8
eyebolts M
8
Hebel
lever
The brake system should be tested with the
car about halfway down the shaft. If any
motor short-circuit connections have been
made, these should be deactivated so that
the brake effect can be tested indepen-
dently.
Overload
The brake system should be tested by interrupting the
power supply to the motor and brake system with the car
moving downward at rated speed and 1.25 times the
rated load. The brake system must be capable of deceler-
ating the car.
Failure of a brake
If one brake fails, the brake system must still be capable
of decelerating the car sufficiently during its downward
travel at rated load and rated speed.
When simulating the failure of one brake, the other
brakes must be kept open separately, even if the safety
circuit is open. This should preferably be done using suit-
able electric circuitry, but can also be performed manual-
ly.
This state must not be maintained in the long term.
Observe the lift during this test. If it does
not decelerate, close the open brake circuit
immediately.
Monitoring the brakes
Check the brake monitoring switches individually. No car
travel must be permitted if a micro switch signal is miss-
ing or a wrong signal operates.
Note
Separate operation of the individual brakes
There are several possible ways of operating the brakes
separately:
•
The preferred method is separate electrical control of
the brakes. The individual brakes can be activated/deac-
tivated quickly by individual control buttons.
•
Remote control by Bowden cable as described in sec-
tion 9.4. (The other Bowden cables must be removed.
The Bowden cable of the brake to be tested should be
attached to the central hole in the lever support to
avoid diagonal tension.)
•
Use of two M8 eyebolts and a lever (see picture "Manu-
al release").
Manual release
Note
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