Braking System EBRA20
Operating instruction
Operational reliability of the installation is assured.
The quality and function of individual components
are subject to thorough inspection and is checked
before dispatch from our works. The brake system
should undergo an operational test before com-
missioning or before possible inspection from a
technical institute.
Fir
st test run after installation
Before the first test run:
The protective coating of grease is to be
carefully removed from the guide rails!
Clean the guide rails!
The cleaning of the guide rail must be done
with a disc brake cleaner or a similar fluid.
It is not allowed to do mechanical cleaning
like grinding. If the surface cannot be
cleaned properly contact the manufacturer.
Clear all people and objects from the lift
shaft before commencing the test run
Ri
sk of crushing injuries!
The entire lift travel path should be slowly trav-
elled (in inspection mode) before the functions
tests. Attention should be paid to the clearance of
all fastened parts, especially with regards to the
guide brackets/safety gear devices. Find and
remove any protruding bolts or other dangerous
restrictions well in advance.
Preparations before tests:
The EBRA20 can only be used with sliding
guides shoes. Therefore a thin coating of
the guide rail oil is to be applied to the
guide rails.
The lubrication oil may not include high
pressure additives.
5.1 Static functions test
The function of the safety gear is to be checked
with empty car before the real brake system test is
performed.
The first test should be done as follows:
• Move the car (the car must be empty) to
ground floor
• Switch off the EBRA20 so it brakes the eleva-
tor
• Switch off the power of the elevator
• Release manually the brake of the drive
• The car may move up to 100 mm upwards
• The car must stop
If the retardation is not correct the
EBRA20 must be replaced (please contact
WITTUR).
The real test can be performed when the
above mentioned tests are ok.
THE LMC LIFTCOMPONENTS MANUFACTURING AND COMMERCE COMPANY
Änderungen vorbehalten! Subject to change without notice!
5 Function testing
Blatt/
sheet
D7AJMGB.011
Datum/
date
23.05.2002
Stand/
version
B-24.05.2005
Geprüft/
approved
WAT/MZE
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