Brake imbalance

Yes but you don't know the result of your entries on that page. It's the result page that displays the Pass or Fail result and we have no way to add RfR's there anymore.....

Brake figure entry and then results page. Once on results page no RfR's can be added unles you cancel or re-enter the figures.

If the F3 option has been removed there's a reason for it to which we can only speculate. The text referring to additional RfR's has been removed and we even have a new section (paragraph 3) in the introduction telling us that the VTS Device decides what Passes or Fails...

I checked 6 times today baz657 it can't be done. It's been removed. If it has there must be a reason...

This is what should be seen on the screen bearing in mind that the figs are made up to force the device to show both axles fail on imbalance.(Please don't make a meal of it and end up with another 3 pages of speculation or sour grapes for the benefit of other members and guests.)

Looking at photo,The result says fail on 2 axles regards imbalance and rfr 8343, so draw your own conclusions and opinions from what you see and understand.
Again this is whats supposed to happen,but my situation after confirming the results,not changing or cancelling brake efforts,only one axle was seen on the vts device as a fail,although on another part of the screen it could be seen that axle 2 had passed even though the percentage next to it exceeded the fail value.

After informing/reporting the point/problem to VOSA they state they have come across a few instances where this has happened,and ties in with what Atos have said that its possible a problem with the vts device(base unit)itself.

During the same conversation i asked the question in relation to why when 2 axles fail on imbalance that the rfr is not quite specific to state both axles,if this was the case the reply was;WE ARE AWARE OF THIS ISSUE PLUS THE WORDING IS INCORRECT(on the device) IN WHICH THIS ISSUE IS BEING RESOLVED TO INDICATE WHICH AXLES(separate) HAVE FAILED THE IMBALANCE PART OF THE TEST ON THE VTS DEVICE AND IS MADE MORE CLEARER ON THE DOCUMENTATION .This also means that the wording in the im is incorrect also.

Still speaking to vosa,i went on to explain regards the situation yesterday about having to manually select the rfr "imbalance across an axle"
His answer was that in the minority of cases the manually selection of this rfr is the correct way particular in my case where the imbalance on one of the axles was not shown for some reason and is a genuine failure and i must apply the failure rfrs from the component hierarchy,what was meant by this is shown in the other photo which has imbalance across an axle shown.To navigate back to this menu just use the back button once the results are confirmed,that's what its there for,in the meantime just use that,HE SAID.

If it's official I hold my hands up but make it public so no other testers get it wrong. Official requires a source. It could do with a PM being sent to all members too

After reading David's piece in this topic I registered a test in training mode to see what happens when both axles fail on imbalance. The relevant part of the printout is shown below.



I can see where any confusion can occur. The vehicle has failed on both axles brake imbalance yet there is only one fail item (001) showing brakes imbalanced across an axle. This would imply that only one axle has failed. You have to look up to the measurements area to see the imbalance figures of 40% and 47%. The problem is that we know these are a fail but is that clear to any vehicle presenter? Perhaps the fail should show imbalanced across axle 1, axle 2 or both followed by the percentages. That would avoid any possible confusion. Better still would be if a dropdown appeared where we could add the word front or rear - in the case of 2 axles failing 2 dropdown boxes.

It's yet another case where if we can get confused amongst ourselves what chance has the man in the street got?

Agreed that the VYS device works it out - never been an issue. It's the was it's communicated to the end users (us and the vehicle presenter) that needs re-vamping.

baz657/David
I have no problem with the last few recents posts.
The issues that where highlighted in your posts are what should happen and has done as its not the 1st time we've seen a vehicle fail on both axles for imbalance at our place.
We had no problems on that occasion and was aware of the fail percentage at the top of the VT 30 and one rfr covering both axles, although it was on another device.(we have 2)
Any way the atos guy give us a new base unit today,so it looks like its a isolated problem.