utt61 Posted February 18, 2011 Share Posted February 18, 2011 There is a discussion going on on another forum (non-MV) which I belong to on the subject of the couplings used on Sankey-type 3/4 ton trailers, specifically which trailers have or had rotating coupling rings (and consequently the potential problem of bending the drawbar - or rear crossmember of the towing vehicle - under conditions of extremem articulation) and which have or had non-rotating rings (and hence require a rotating hook on the towing vehicle). It was my understanding was that:- - All the 'narrow track' trailers had rotating eyes - All the 'wide track' trailers had non-rotating eyes - All the current 'Wolf'/Penman style trailers have non-rotating eyes. However I now understand that many of the late disposal narrow tracks had non-rotating eyes. If so, was this an official service modification, or were the last ones built like this? Quote Link to comment Share on other sites More sharing options...
fv1609 Posted February 18, 2011 Share Posted February 18, 2011 (edited) I'm not sure whether these effect rotatabilty EMER WHEELED VEHICLES U 207 Mod Instr No.13 June 1964 Certain 1/2 Ton trailers "..removing drawbar assembly from trailer, dismantling & modifying draught eye pivot & bracket" "Items effected: Drawbar assembly for FV2300 series trailers, Clas 1 & 2 (ACI 187/62 refers), except the first 8000 Mk 1 chassis (FV2301) which can be identified by the single relay brake lever operating through a slot in the drawbar." EMER WHEELED VEHICLES U 207/8 Mod Instr No.13 Dec 1981 Certain 3/4 Ton trailers including FV2361, FV2363, FV2364, FV2366, FV8368 (possibly typo for FV2368) "This instruction introduces a two piece drawbar eye assembly which is to be fitted on failure of existing one piece drawbar eye assembly." EMER WHEELED VEHICLES U 209/8 Misc Instr No.3 Nov 1974 3/4 Ton trailers FV2360 series "This instruction refers to the fitting of a redesigned draught eye assembly with increased shaft diameter which will be issued as a replacement when existing stocks have been exhausted." Edited February 18, 2011 by fv1609 Quote Link to comment Share on other sites More sharing options...
ruxy Posted February 18, 2011 Share Posted February 18, 2011 You will get differing definative / latest instructions on this , my understanding is that something must turn even on highway ( a rotating 3" draught eye) or the DB Light pintle FV987958 (rated 4.08 tonne). So with a Sankey narrow-track FV2361 the pintle remaind locked upright , BUT possibly there is a need to rotate 360 degree on rough terrain (I do). You can always ask Dixon-Bate (now Bradley Doublelock since late 2010 - who manuf. the fixed draught as used on wide-track) , so they are now the competent authority to answer this question for a wide-track pulled with a DB Light Pintle (that was not the case prior). Something makes me think the Mk.1 Wide-track in fact had the rotating draught (as narrow-track ?? , I don't have this model to have a look). From memory - there is a upgrade to draught (this may have made them a Mk.2)So this is something to be aware of.. Wide-track trailers FV.2381 were manuf. by :- 1. Reynolds Boughton 2. Universal Engineering 3. Viking Trailers (I think Mk.2 only) 4. Arrow Construction Equip (they made the Mk.1 , IIRC some were up-graded to Mk.2 or Mk.3 & 2 struck out) 5. Parotow 6. King (a handfull or more) =========== More of importance to me , there were 3 or 4 locking devices for the top latch of the pintle, long bent stainless split-pins, bent coat hanger hooks etc. I would only set a DB Light pintle to rotate esp. on a public highway with the latest "Nappy Clip" on lanyard ... Quote Link to comment Share on other sites More sharing options...
chevpol Posted February 18, 2011 Share Posted February 18, 2011 My cooks trailer has a fixed towing eye Mark Quote Link to comment Share on other sites More sharing options...
sirhc Posted February 18, 2011 Share Posted February 18, 2011 Something makes me think the Mk.1 Wide-track in fact had the rotating draught (as narrow-track ?? , I don't have this model to have a look). From memory - there is a upgrade to draught (this may have made them a Mk.2)So this is something to be aware of.. Wide-track trailers FV.2381 were manuf. by :- 1. Reynolds Boughton 2. Universal Engineering 3. Viking Trailers (I think Mk.2 only) 4. Arrow Construction Equip (they made the Mk.1 , IIRC some were up-graded to Mk.2 or Mk.3 & 2 struck out) 5. Parotow 6. King (a handfull or more) I had a Mk 1 Widetrack with a rotating eye. I also have a Mk 3 manufactured by Viking. Quote Link to comment Share on other sites More sharing options...
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