Autumn leaves and wheelslip

karlr42 · 05-10-2011, 10:39

Plenty of trouble on the 22:12 Pearse Maynooth last night. We were following another train to Glasnevin so crawled along there, then we had significant trouble leaving Ashtown. There were massive problems between Castleknock and Coolmine, we never once managed to get going properly , any time we built up some revs the wheels slipped and we lost it. To top it all off, there was an emergency brake application between Coolmine and Porterstown, due to what sounded like a problem with the vigilance device(some frantic pedal stomping was heard). The train was about 10 minutes late into Clonsilla and seemed to have trouble leaving there too.

Interestingly enough, the particular train involved, 29010, for some reason has had the integral retarder (engine-assisted brake) reactivated after it was disabled a few years back on the 29s. It's been this way for a couple of weeks.

Jack O'Neill · 05-10-2011, 11:59

Rail bosses tackle 'leaves on the line' by running trains early to allow for slower journeys

Read more: http://www.dailymail.co.uk/news/arti...#ixzz1ZuLgUoPt

Colm Moore · 05-10-2011, 19:38

Quote:

Originally Posted by Jack O'Neill

Rail bosses tackle 'leaves on the line' by running trains early to allow for slower journeys

Read more: http://www.dailymail.co.uk/news/arti...#ixzz1ZuLgUoPt

In fairness, their headline of "Rail bosses tackle 'leaves on the line' by running trains early to allow for slower journeys" is misleading. It conveys the impression that trains are leaving before the scheduled time, when in reality they have changed the schedule.

Mark Gleeson · 05-10-2011, 12:16

The retarder was disabled as it only worked on one pair of axles so the brake disks did not get worn equally.

I'm guessing someone has done the math and realized that brake disks cost money

NIR has the retarder enabled on all C3K stock which is basically the same under the floor as the 29k

05-10-2011, 11:59	#2
Jack O'Neill Regular Poster Join Date: May 2008 Location: Mornington Crescent Posts: 81	Article in Daily Mail Rail bosses tackle 'leaves on the line' by running trains early to allow for slower journeys Read more: http://www.dailymail.co.uk/news/arti...#ixzz1ZuLgUoPt

05-10-2011, 12:16	#4
Mark Gleeson Technical Officer Join Date: Dec 2005 Location: Coach C, Seat 33 Posts: 12,669	The retarder was disabled as it only worked on one pair of axles so the brake disks did not get worn equally. I'm guessing someone has done the math and realized that brake disks cost money NIR has the retarder enabled on all C3K stock which is basically the same under the floor as the 29k __________________ Unhappy with new timetable - let us know

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05-10-2011, 10:39	#1
karlr42 Member Join Date: Mar 2009 Location: Clonsilla Posts: 340	Plenty of trouble on the 22:12 Pearse Maynooth last night. We were following another train to Glasnevin so crawled along there, then we had significant trouble leaving Ashtown. There were massive problems between Castleknock and Coolmine, we never once managed to get going properly , any time we built up some revs the wheels slipped and we lost it. To top it all off, there was an emergency brake application between Coolmine and Porterstown, due to what sounded like a problem with the vigilance device(some frantic pedal stomping was heard). The train was about 10 minutes late into Clonsilla and seemed to have trouble leaving there too. Interestingly enough, the particular train involved, 29010, for some reason has had the integral retarder (engine-assisted brake) reactivated after it was disabled a few years back on the 29s. It's been this way for a couple of weeks.