Release Brakes On Pzb60 On Obb 1020

Discussion in 'TSW Troubleshooting & Issues Discussion' started by Volvo B10M, Feb 14, 2025.

  1. Volvo B10M

    Volvo B10M Active Member

    Joined:
    Apr 21, 2022
    Messages:
    339
    Likes Received:
    48
    I ended up passing the 60 supervising speed limit as the speed limit went up to 70 which caused the brakes to apply, I followed the steps in the manual which says stop and hold release when the brakes are applied and yet it will not release. How am I supposed to get the brakes to release?

    Edit: What else I also found with this loco is that if you open the circuit breaker for a neutral section, it simply will not close again and all electrics go off. What am I supposed to do with this happening? It seems to not be possible to complete a full run with it like this.
     
    Last edited: Feb 14, 2025
  2. DominusEdwardius

    DominusEdwardius Well-Known Member

    Joined:
    Dec 8, 2016
    Messages:
    370
    Likes Received:
    583
    Sounds very much like you've lost all your air to such an extent you can't even close the MCB. Assuming it was Indusi that brought you to a stop you have to make sure the brake pipe is vented before pressing the release button and the yellow light should go out. if however it was the lack of air preventing the brake release, then its likely you haven't switched the compressor on.

    However with air pressure being so low, there is a chance you won't be able to keep the panto raised and close the MCB. Should that be the case you'll have to run the auxilliary compressor in the machine room and let that build air pressure in its reservoir, before then being able to close the MCB and have the main air compressor run to build up the brake tanks.

    Also always worth posting a screenshot of any predicament you get into, as it helps with diagnosis.
     
    • Like Like x 2
    • Helpful Helpful x 1
  3. Volvo B10M

    Volvo B10M Active Member

    Joined:
    Apr 21, 2022
    Messages:
    339
    Likes Received:
    48
    The problem with the MCB was on a completely different attempt at a different timetable scenario, there is air in the system but no power to close the MCB relay. How do I reset the PZB as it will not release to what the manual is stating?
     
  4. DominusEdwardius

    DominusEdwardius Well-Known Member

    Joined:
    Dec 8, 2016
    Messages:
    370
    Likes Received:
    583
    largley just move the brake handle to emergency one indusi trips and Indusi Acknowledge (Page down), then when you come to a stand, press Indusi Release (end), thats pretty much it, once the constant tone stops indusi is no longer venting the brake pipe
     
  5. Volvo B10M

    Volvo B10M Active Member

    Joined:
    Apr 21, 2022
    Messages:
    339
    Likes Received:
    48
    I have done this and it doesn't let be recreate brake pressure, the only thing that shows is the flashing yellow light above the acknowledge. I have the same happen again after I passed 60km/h now the other issue with the breaker is happening because I tried turning it off and on again. There's no power to turn on the power and the brakes. Also what is the warning cabinet switch for, it seems to not do anything and there is also no mention of it in the manual. It also doesn't make sense that the loco has a 90km/h top speed label in the cab but trips the brakes if you pass 60km/h, this does not seem to end start program after any amount of time so I can only assume that is supposed to say 60km/h.

    I have all switches on and held close MCB but absolutely no power is coming on so I can't do anything with this again.
     
  6. DominusEdwardius

    DominusEdwardius Well-Known Member

    Joined:
    Dec 8, 2016
    Messages:
    370
    Likes Received:
    583
    i have no idea frankly, you're clearly doing something wrong! You are going to have to video it.

    the warming cabinet, is a warm cabinet for keeping your lunch warm.
     
  7. Volvo B10M

    Volvo B10M Active Member

    Joined:
    Apr 21, 2022
    Messages:
    339
    Likes Received:
    48
    I misread that switch, it makes sense now.

    I can't use video capture anymore, when I download the software I used before OB Studio it is not in a format that can be installed easily to make it more OS universal. Apparently I need to load it on with code commands which makes it work correctly to the specific OS, problem is I can't code so it's not possible for me to do. If I go to any other brand they claim I can record but then as soon as I try it out I have to "unlock" the record facility by paying a membership fee. I am pretty sure Steam had a record feature once but it seems that no longer exists as it's possible to screenshot only now.
    20250215014253_1.jpg 20250215014544_1.jpg 20250215014811_1.jpg 20250215014826_1.jpg
     
  8. DominusEdwardius

    DominusEdwardius Well-Known Member

    Joined:
    Dec 8, 2016
    Messages:
    370
    Likes Received:
    583
    Your main reservoir is almost entirely drained which explains why you cannot get a brake release. I would suggest turning on the auxiliary compressor and letting that run, then try the main circuit breaker again.

    As for how you got into that mess in the first place I'm not entirely certain. There is no speed check at 60-65kph unless you're in mode U for some odd reason and get 1000Hz
     
  9. DominusEdwardius

    DominusEdwardius Well-Known Member

    Joined:
    Dec 8, 2016
    Messages:
    370
    Likes Received:
    583
    The only thing I can think of is you missed the Vorsignal/1000Hz magnet for that signal you are approaching, didn't immediatley move the brake handle to emergency or kept trying to use it to release the brake before releasing the indusi demand and so lost you're main reservoir pressure. At some stage maybe you dropped and raised the pantograph by mistake which used up that air supply which then prevents you from reclosing the MCB and running the main compressor. If that is the case, the only recourse is to run the auxiliary compressor.
     
  10. Volvo B10M

    Volvo B10M Active Member

    Joined:
    Apr 21, 2022
    Messages:
    339
    Likes Received:
    48
    I couldn't turn on the compressor because there is no power after I tried to restart it. I tried going from running to emergency and pressing release multiple times before restarting it but it would not release. The compressor did not kick in before I shut it down to restart so I don't know what the brake res pressure was at. Isn't there only one mode with the 1020? I can't find a mode selector switch like on the 111. I have it on a timetable passenger service so I would assume it is already set to the equivalent of the passenger mode on PZB90.
     
    • Helpful Helpful x 1
  11. roysto25

    roysto25 Well-Known Member

    Joined:
    May 1, 2019
    Messages:
    354
    Likes Received:
    382
    One question not addressed - where is the auxiliary compressor switch?
     
  12. Lamplight

    Lamplight Well-Known Member

    Joined:
    Aug 20, 2020
    Messages:
    4,378
    Likes Received:
    7,588
    It’s a small switch near to the valves that let you cut-off brakes per bogies and select P or G brake modes. Opposite end of the machine room corridor from the fuse panel.
     
    • Helpful Helpful x 1
  13. Volvo B10M

    Volvo B10M Active Member

    Joined:
    Apr 21, 2022
    Messages:
    339
    Likes Received:
    48
    Would it run without power? I though the auxiliary controls would be fed from the main air res which needs power to work, or is there a diesel/petrol fired compressor to cold start the air system.
     
  14. Lamplight

    Lamplight Well-Known Member

    Joined:
    Aug 20, 2020
    Messages:
    4,378
    Likes Received:
    7,588
    Runs on battery power. The auxiliary compressor is specifically for cold starting engines without enough air pressure in the main reservoir to lift the panto and close the MCB.
     

Share This Page