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18. The Secretary of the IWG on Regulation No. 55 presented (GRRF-83-06) a consolidated proposal (ECE/TRANS/WP.29/GRRF/2017/3) based on the proposals presented at the previous session of GRRF and addressing the comments received.
19. GRRF adopted the proposal [after correcting an equation in Annex 8, para. 3.4., Clevis Coupling D formulae] and requested the secretariat to submit it as part of the draft Supplement 7 to the 01 series of amendments to Regulation No. 55 (Mechanical coupling) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.
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GRRF-83-06/Rev.1 | Comments on the proposal of the Revision of UN R55 informal group to GRRF
GRRF/2017/3 | Proposal for amendments to Regulation No. 55
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Proposal for amendments to Regulation No. 55
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Reference Number: GRRF/2017/3
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UN R55 informal group proposal for: - An amendment for the separation of the procedures to verify towable mass from the procedure of setting and certifying performance values;
- An amendment that adds procedures to verify towable mass for vehicle combinations that have hitherto not been accounted for in the Regulation;
- Amendments that adds integrated fixing points for secondary couplings;
- An amendment that clarifies the procedure to identify worst cases for certification testing;
- Amendments that removes typos in the current Regulation.
Please note that, under paragraph 3.4 regarding “Combination 4”, the Clevis coupling formula should read “DC” rather than “D” as shown.
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Meeting Sessions: 83rd GRRF session (23-27
Jan 2017)
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Document date: 14 Nov 16
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Document status: Superseded
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Relevant to
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View full document file for more information
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20. The Chair of GRRF recalled the purpose of ECE/TRANS/WP.29/GRRF/2016/32, aimed at imposing a new general constraint for granting component type-approval for mechanical coupling devices dedicated to category M1 vehicles only if the vehicle type is designed to tow trailers. An ad hoc group of experts proposed an alternative wording, in GRRF-83-25-Rev.1.
21. GRRF adopted the proposal as reproduced in Annex III and requested the secretariat to submit it as part of the Supplement 7 to the 01 series of amendments to Regulation No. 55 (Mechanical coupling) to WP.29 and AC.1 for consideration and vote at their June 2017 sessions.
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GRRF-83-25 | Proposal for amendments to Regulation No. 55
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Proposal for amendments to Regulation No. 55
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Reference Number: GRRF-83-25
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Proposed addition, based on document GRRF/2016/32, to the package of amendments developed by the informal working group on UN R55 (document GRRF/2017/3). The proposal aims to make clear to Technical Services and Authorities that in cases where no values for the maximum permissible towing vehicle and trailer masses and the maximum permissible static vertical imposed load on the tow ball are declared by a vehicle manufacturer or where the declared maximum vertical value is zero, approval shall be refused.
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Meeting Sessions: 83rd GRRF session (23-27
Jan 2017)
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Document date: 25 Jan 17
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRRF-83-25/Rev.1 | Proposal for amendments to Regulation No. 55
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Proposal for amendments to Regulation No. 55
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Reference Number: GRRF-83-25/Rev.1
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Addition, based on document GRRF/2016/32, to the package of amendments developed by the informal working group on UN R55 (document GRRF/2017/3). The proposal aims to make clear to Technical Services and Authorities that in cases where no values for the maximum permissible towing vehicle and trailer masses and the maximum permissible static vertical imposed load on the tow device are declared by a vehicle manufacturer or where the declared maximum vertical value is zero, approval shall be refused.
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Meeting Sessions: 83rd GRRF session (23-27
Jan 2017)
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Document date: 25 Jan 17
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Document status: Superseded
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Relevant to
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View full document file for more information
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GRRF/2016/32 | Proposal for an amendment to Regulation No. 55
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Proposal for an amendment to Regulation No. 55
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Reference Number: GRRF/2016/32
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Proposal to restrict component type-approval for mechanical coupling devices dedicated to category M1 vehicles to use only on such M1 vehicles as are designed to tow trailers.
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Submitted by: Poland
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Meeting Sessions: 82nd GRRF session (20-23
Sep 2016)
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Document date: 05 Jul 16
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Document status: Superseded
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Relevant to
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View full document file for more information
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