Proposal to introduce provisions for the approval of replacement brake discs for L-category (motorcycle and related) vehicles, to remove tables specifying general values for replacement discs and drums that are identical to the original, change the maximum permitted thickness variation of discs for medium and heavy vehicles from 0.030 mm to 0.040 mm, and clarify the text in order to avoid additional administrative and financial costs to the applicant due to misinterpretation of the intent of the text.
56. Due to the lack of time, GRVA agreed to postpone the consideration of
GRVA-01-12 and the oral report of the expert from Spain on the activities of the Special Interest Group of experts on UN Regulation No. 90 until the January 2019 session.
25. The expert from CLEPA presented ECE/TRANS/WP.29/2016/22 based on GRRF-80-12 proposing amendments to provisions defined for equivalent brake discs and drums and a relaxation of the requirement on the thickness variation for interchangeable replacement discs or drums. The expert presented a revised proposal GRRF-81-04 limiting the thickness variation requirement modification to vehicles of category O2, O3, N3 and M3. The expert from Italy expressed his concern with the proposed requirement relaxation. After discussion, GRRF agreed on the revised document GRRF-81-04-Rev.1. GRRF adopted the proposal amended by Annex IV to the report and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
26. The expert from Italy presented GRRF-80-31, introducing ECE/TRANS/WP.29/GRRF/2014/23/Rev.2 and GRRF-80-37 and proposing requirements for the approval of replacement brake discs for L‑category vehicles, taking into consideration the latest technologies available in the market as well as comments received during the previous session of GRRF. GRRF adopted the proposal with the following amendments:
(a) the proposed transitional provisions (paras 12.1 to 12.6) shall be deleted;
(b) The note under Table A15/2.9 shall read: “There are no groups…”
27. The expert from CLEPA introduced ECE/TRANS/WP.29/GRRF/2015/22 proposing to enable the approval according to Regulation No. 90 of test groups instead of single variants. GRRF adopted the proposal with an amendment below:
In paragraph 4.2.3.(b), for “approval document” read “communication document”
28. GRRF adopted the proposal as amended and requested the secretariat to submit it to WP.29 and AC.1 for consideration at their June 2016 sessions, as Supplement 3 to the 02 series of amendments to Regulation No. 90.
| GRRF/2015/22 | |
| GRRF/2016/22 | |
| GRRF-81-04/Rev.1 | |
| GRRF-80-37 | |
| GRVA-01-12 |