WITTUR EBRA20 Operating Instruction Download

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Braking System EBRA20

Operating instruction

Braking System EBRA20

Blatt/

sheet

D7AJMGB.000

Datum/

date

23.05.2002

Stand/

version B-24.05.2005

Geprüft/

approved WAT/MZE

D7AJMGB

05.2005

THE LMC LIFTCOMPONENTS MANUFACTURING AND COMMERCE COMPANY

No part of this publication may be reproduced or
translated, even in part, without prior written permis-
sion from WITTUR GmbH.

Änderungen vorbehalten!

We reserve the right to make alterations with respect
to the specifications and figures in this manual.

Subject to change without notice!

WITTUR GmbH

Sowitschstrasse 1 • A-3270 Scheibbs, Austria

Tel. +43 (0) 7482/42542-0 • Fax +43 (0) 7482/42542-232

http://www.wittur.at • E-Mail: [email protected]

Summary of Contents for EBRA20

Page 1: ...COMPANY No part of this publication may be reproduced or translated even in part without prior written permis sion from WITTUR GmbH nderungen vorbehalten We reserve the right to make alterations with...

Page 2: ...inspection D7AJMGB 013 6 1 1 General D7AJMGB 013 6 1 2 Cleaning of guide rails D7AJMGB 013 6 1 3 Returning tests D7AJMGB 014 6 2 Maintenance and inspection check list D7AJMGB 014 6 2 1 Checking and ch...

Page 3: ...e tripping information over speed gover nor switch from the elevator The EBRA20 may be used for electrical operated passenger an goods lifts according EN81 1 The system does not substitute the safety...

Page 4: ...material which has neither been re leased by the WITTUR Company nor consists of original WITTUR spare parts 1 3 Safety precautions WITTUR machine installation or repair engineers are chiefly responsib...

Page 5: ...following should be checked also that the factory and order number correspond that the details on the name plate correspond to those on the order the elevator speed the width and type of guide rail us...

Page 6: ...IFTCOMPONENTS MANUFACTURING AND COMMERCE COMPANY nderungen vorbehalten Subject to change without notice Braking System EBRA20 Operating instruction Braking System EBRA20 Blatt sheet D7AJMGB 000 Datum...

Page 7: ...measured when EBRA20 is on the rail and braking and should be 1 mm from the value given Blatt sheet D7AJMGB 006 Datum date 23 05 2002 Stand version 23 05 2002 Gepr ft approved WAT MZE THE LMC LIFTCOMP...

Page 8: ...1 Fix car sling in position to guide if modern ization 2 Remove the old sliding shoe of the car B and possible other fixings above the car frame crosshead beam 3 Fix the adapter plate s C to the cros...

Page 9: ...to the car roof terminal box E The brake switch contact is wired in series with the safety gear contact in lift safety circuit Blatt sheet D7AJMGB 008 Datum date 23 05 2002 Stand version 23 05 2002 Ge...

Page 10: ...en Subject to change without notice Work involving electrical equipment should only be carried out by an electrical fitter or qualified personnel Before carrying out work switch off all voltage to ins...

Page 11: ...supply 230VAC G is switched OFF and ON Switching the power off resets the time circuit on the board Do not open the overspeed governor con tact switch F shortly after recycling the EBRA20 G because th...

Page 12: ...f 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 Th...

Page 13: ...con tact switch F shortly after recycling the EBRA20 G because there is 200VDC over the overspeed governor contact switch contacts and they may be burned if opened The voltage drops to about 30 VDC in...

Page 14: ...c tional tests e g before T V tests The lift installation must be immediately taken out of use should any damage or irregularities arise which could possibly impair operational safety Please contact u...

Page 15: ...rake shoes are nominally 12mm thick and can be used to thickness of 11 8mm Thickness should be checked after every five emergency braking refer to chapter 6 2 1 Sliding elements are nominally 8 5mm th...

Page 16: ...e hardened steel and may be broken if dropped 5 Take the brake shoe out from the cutting it is positioned in and check its condition Change if needed 6 2 2 Checking and changing the brake fork sliding...

Page 17: ...H OFF the battery 2 and the power of EBRA20 3 before changing the battery NOTE There may be 230 V in wires against the earth 2 Remove the fixing and change the battery 1 Blatt sheet D7AJMGB 016 Datum...

Page 18: ...ts must be carried out locally In other words all procedures involved in initial installation are also included in the repairs and maintenance schedule Such repair work in the safety system must of co...

Page 19: ...llowing the standard procedures given for elevators without this additional brake ALWAYS check first has the OSG switch been operated i e has the car run over speed 1 Power ON and the OSG switch has b...

Page 20: ...the rescue plan given for that specific elevator type to get the car to the door zone Normally open the motor brake and turn the hand wheel Resp if the elevator is equipped with recall drive drive th...

Page 21: ...STOP opening if the car starts to move OR Open the EBRA20 by pressing the brake forks 6 e g by means of a C clamp If the car does not move even if the EBRA20 brake is open follow the rescue plan give...

Page 22: ...n Subject to change without notice Component Spare part used Number Art No Sliding element 4 726762H01 Pos 1 2 Guide rail width 7mm Sliding insert 1 720498H07 3 8mm 1 720498H08 9mm 1 720498H09 10mm 1...

Page 23: ...o change without notice Braking System EBRA20 Operating instruction Component Spare part used Number Art No Electronic board 1 720504G01 Pos 6 7 230 30VAC 50VA 1 604200G01 8 12V 2 1 AH 1 253300 9 Siem...

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