TFAC-04-04
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Minutes of the small group meeting on formulas and test procedure for agricultural towing devices
Description
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Special group meeting to develop proposals for the definition of specific values to be used in the formulas to evaluate the performance of agricultural vehicle towing hitches and related devices under UN R55.
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Document Reference Number: TFAC-04-04
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Document date: 13 Jan 14
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More information
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Related regulations or topics
Related discussions
4th TFAC session (5-6
Feb 2014)
3.1 Review common proposal based on TFAC 03-06 from the small group (Doc. TFAC-04-04 and TFAC-03-06)
The small group held its first meeting on 18 December 2013 (minutes see TFAC-04-04). There are still some open issues which will be discussed and solved during a second meeting on 6 March 2014.
3.5 Review of present R 55.01 including Corr. 1 and Amend. 1–3 and the proposals for amendment and conclusions for these amendments (GRRF/2013/16, GRRF-75-21 and GRRF/2014/14)
The following results of TFAC are presently achieved:
- TFAC 02-13 (Basic document)
- TFAC 03-04 Rev. 1 (CUNA-Couplings, Class q and r)
- TFAC 03-08 Rev. 1 (Drawbar, Class i)
- TFAC 03-10 Rev. 1 (Class j to become a, Class k to become b, Towing brackets)
- TFAC 03-14 (Mounting height of coupling on the tractor)
Still open and further need for discussion concerns:
- TFAC 03-13 (Swedish proposals)
- TFAC 04-09 (Italian Proposal for Annex 5)
- TFAC 04-04 and TFAC … (Results of the small group)
Mr Schauer is asked to prepare a complete document with the agreed changes on the basis on R 55 until End of April (to become TFAC 04-11). Members of TFAC are invited to submit their comments four weeks after submission of that document.
It was agreed to present the results of TFAC to the IWG R 55 in the next meeting to be held in Poznan beginning of June by Mr Schauer and Mr Pagliarani.
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13 Jan 2014
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Informal Subgroup
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Report
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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Special group meeting to develop proposals for the definition of specific values to be used in the formulas to evaluate the performance of agricultural vehicle towing hitches and related devices under UN R55.
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TFAC-04-0004
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TFAC-04-05
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Minutes of the 4th TFAC informal working group session
Document Reference Number: TFAC-04-05
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Document date: 23 Apr 14
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More information
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Related regulations or topics
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23 Apr 2014
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Informal Subgroup
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Report
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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TFAC-04-0005
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TFAC-04-06
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List of participants from the 4th TFAC informal working group session
Document Reference Number: TFAC-04-06
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Document date: 23 Apr 14
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More information
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Related regulations or topics
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23 Apr 2014
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Informal Subgroup
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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TFAC-04-0006
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TFAC-04-07
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Discussion document on Swedish proposal for connector indicator
(Dromone)
Description
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Comments on a Swedish proposal to require an indicator within the operator’s field of vision to confirm whether safety latches are engaged and the system fully locked (or not).
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Document Reference Number: TFAC-04-07
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Submitted by: Dromone
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Document date: 23 Feb 14
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More information
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Related regulations or topics
Related documents
TFAC-03-13 | Proposal of changes to the draft TFAC amendments to Regulation No. 55
Related discussions
4th TFAC session (5-6
Feb 2014)
3.4 Discussion and decision on TFAC-03-13
Mr Duffy explained TFAC 04-07 with regard to the Sewdish proposals (TFAC-03-13). It was decided to continue the discussion in the IWG R55.
5.1 Swedish proposal (Document TFAC-03-13)
Mr Gunneriusson explained the proposal and the background. It was agreed that the participants shall review TFAC-03-13 for discussion and decision at the next meeting.
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23 Apr 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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Comments on a Swedish proposal to require an indicator within the operator's field of vision to confirm whether safety latches are engaged and the system fully locked (or not).
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TFAC-04-0007
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TFAC-04-08
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Agricultural coupling devices: Static or dynamic testing?
(TÜV Süd)
Description
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Presentation opposing static testing of mechanical couplings for agricultural tractors.
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Document Reference Number: TFAC-04-08
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Submitted by: TÜV Süd
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Document date: 23 Feb 14
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More information
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Related regulations or topics
Related discussions
4th TFAC session (5-6
Feb 2014)
5.3 Discussion static versus dynamic testing
With a presentation (TFAC 04-08) Mr Westphäling explained the reasons why according to his opinion a static testing of coupling devices should not be permitted.
Mr Rehm and Mr Pagliarani expressed the opinion that a static testing should be permitted for the “CUNA-Couplings” and the drawbar up to 40 km/h max. speed as these devices are tested statically for decades in Europe and no failures or accidents are known so far.
Mr Gunneriusson supported the opinion of Mr Westphäling.
After a detailed discussion, the majority of the participant could accept the position of Mr Rehm and Mr Pagliarani. It was decided that the IWG R 55 should discuss this topic during one of their next meetings.
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23 Apr 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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Presentation opposing static testing of mechanical couplings for agricultural tractors.
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TFAC-04-0008
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TFAC-04-09
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Italian proposal for Annex 5 of UN R55 concerning Clevis-type drawbar couplings and drawbar eyes
(Italy)
Document Reference Number: TFAC-04-09
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Submitted by: Italy
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Document date: 05 Feb 14
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More information
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Related regulations or topics
Related discussions
4th TFAC session (5-6
Feb 2014)
3.5 Review of present R 55.01 including Corr. 1 and Amend. 1–3 and the proposals for amendment and conclusions for these amendments (GRRF/2013/16, GRRF-75-21 and GRRF/2014/14)
The following results of TFAC are presently achieved:
- TFAC 02-13 (Basic document)
- TFAC 03-04 Rev. 1 (CUNA-Couplings, Class q and r)
- TFAC 03-08 Rev. 1 (Drawbar, Class i)
- TFAC 03-10 Rev. 1 (Class j to become a, Class k to become b, Towing brackets)
- TFAC 03-14 (Mounting height of coupling on the tractor)
Still open and further need for discussion concerns:
- TFAC 03-13 (Swedish proposals)
- TFAC 04-09 (Italian Proposal for Annex 5)
- TFAC 04-04 and TFAC … (Results of the small group)
Mr Schauer is asked to prepare a complete document with the agreed changes on the basis on R 55 until End of April (to become TFAC 04-11). Members of TFAC are invited to submit their comments four weeks after submission of that document.
It was agreed to present the results of TFAC to the IWG R 55 in the next meeting to be held in Poznan beginning of June by Mr Schauer and Mr Pagliarani.
5.2 Italian Proposal for Annex 5 (TFAC 04-09)
Mr Pagliarani explained the background and the Italian proposal on Annex 5. It was agreed to upload the document to the TFAC website and to ask for comments on it by the members of TFAC.
For information, the comments of Italy on the draft EU-Regulation RVFSR are given in TFAC 04-10.
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23 Apr 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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TFAC-04-0009
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TFAC-04-10
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Italian comments on the vehicle functional safety requirements for mechanical couplings
(Italy)
Document Reference Number: TFAC-04-10
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Submitted by: Italy
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Document date: 23 Feb 14
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More information
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Related regulations or topics
Related discussions
4th TFAC session (5-6
Feb 2014)
5.2 Italian Proposal for Annex 5 (TFAC 04-09)
Mr Pagliarani explained the background and the Italian proposal on Annex 5. It was agreed to upload the document to the TFAC website and to ask for comments on it by the members of TFAC.
For information, the comments of Italy on the draft EU-Regulation RVFSR are given in TFAC 04-10.
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23 Apr 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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TFAC-04-0010
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TFAC-04-11
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Working draft of the revised consolidated version of UN R55 introducing provisions for agricultural vehicle couplings
Description
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Working draft prepared by the Task Force on Agricultural Couplings pursuant to the groups 4th session in February 2014.
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Document Reference Number: TFAC-04-11
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Document date: 12 Sep 14
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Document status: Superseded
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More information
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Related regulations or topics
Related documents
GRRF-78-24 | Consolidated working draft of UN R55 introducing provisions for agricultural vehicle couplings
TFAC-05-09 | Working draft of agricultural couplings amendments under UN Regulation No. 55
Related discussions
17. The chair of the IWG on UN Regulation No. 55 introduced GRRF-78-23 explaining the differences between standards ISO 7641:1983 and ISO 7641:2012. He reported on the meeting minutes (GRRF‑78‑25) and on the meetings status on Task Force Agricultural Couplings (TFAC) (GRRF‑78‑26). Finally he presented GRRF‑78-24 as a complete revision of UN Regulation No. 55. GRRF agreed to resume consideration of this proposal at its February 2015 session.
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12 Sep 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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Working draft prepared by the Task Force on Agricultural Couplings pursuant to the groups 4th session in February 2014.
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TFAC-04-0011
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TFAC-04-12
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Minutes of the March meeting of the TFAC Small Group for definition of formulas and test procedures for agricultural towing devices
Document Reference Number: TFAC-04-12
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Document date: 04 Jun 14
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More information
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Related regulations or topics
Related documents
GRRF-78-25 | Minutes of the March session of the R55 Informal Group Task Force Agricultural Couplings (TFAC) Small Group for definition of Formulas and Test procedure for agricultural towing devices
Related discussions
17. The chair of the IWG on UN Regulation No. 55 introduced GRRF-78-23 explaining the differences between standards ISO 7641:1983 and ISO 7641:2012. He reported on the meeting minutes (GRRF‑78‑25) and on the meetings status on Task Force Agricultural Couplings (TFAC) (GRRF‑78‑26). Finally he presented GRRF‑78-24 as a complete revision of UN Regulation No. 55. GRRF agreed to resume consideration of this proposal at its February 2015 session.
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04 Jun 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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TFAC-04-0012
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TFAC-04-13
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Status of topics and documentation following the 4th TFAC session
Description
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Status of topics being discussed within the Task Force on Agricultural Couplings (TFAC).
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Document Reference Number: TFAC-04-13
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Document date: 04 Jun 14
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More information
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Related regulations or topics
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04 Jun 2014
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Informal Subgroup
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Informal Documents
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Mechanical Coupling Components
Mechanical Couplings
Uniform provisions concerning the approval of mechanical coupling components of combinations of vehicles
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Status of topics being discussed within the Task Force on Agricultural Couplings (TFAC).
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TFAC-04-0013
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