5 Inch Gauge Class 31 Diesel Loco 9
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- Опубліковано 6 жов 2024
- Here we have a video describing cleaning the wheel treads and lubricating the axle boxes.
The locomotive had failed in section at one of our club Birthday Party celebrations.
The loco was hauling a three coach passenger carrying train at the party.
I noted that the wheels were doing a lot more slipping than would be the norm on previous occasions, then there appeared to be a loss of power while climbing the gradient into the station.
When departing the station on this particular occasion there was certainly a loss of power noted, so I decided to call a halt to the departure, and reverse back into the station for the service to be taken forward by another club members marvelous Britannia class locomotive, which was simmering in the steaming bays awaiting it`s turn to thrill the Birthday Party attendees.
The Brit did not fail to impress the guests as it departed on the first of many laps it performed during the rest of the party.
31327 was checked over in the steaming bays and one of the four 10 amp circuit breakers (which protect the four motors individually) had tripped causing one of the motors not to be working, (thereby reducing the loco`s power by 1/4).
It also appeared that a second motor may have been having issues too, but this could not be proven.
The MCB was reset, and when the party had come to a close, 31327 was put back on the track and did several successful laps with the same 3 coach train (but without passengers this time).
This video is a follow up to that incident showing the cleaning of the wheels incase slipping wheels may have been partly to blame for the failure.
Maybe the wheels slipping on the rails, caused the motors to be running at higher speeds than normal, causing a higher current and tripping the circuit breaker.
May be my attempts to hold the controller at a lower speed to avoid wheel slip caused the circuit breaker to trip.
Lets get the wheels cleaned and see if problems are still evident on our next outing.
15:56 the wheel you touch moves seperately to the driven side.
If this happens it will explain the lack of pulling power ect.
You will have all the locos power being sent to that motor as the driven side will slip.
Check all the wheels are tight on their axles and not able to move independant of eachother
Hi Eric, nice to hear from you mate.
Thanks for the comment, I will check out that the axles have both wheels secured on them.
As you say if one wheel is lose on a axle, then you are down to 50% of available traction on the axle.
Cheers.
Andy G.
@@masterpiecesinminiature8299 if you have a loose wheel on one of the axles then the other wheel will slip and due to the way the motors are wired in our locos, the slipping motor will take all the power.
Youll end up with that motor working hard aswell as not actually being able to pull anything.
It almost becomes 1 wheel drive instead of 8.
Have had it happen to my 20 a couple times as i have one wheel which is a poor fit on the axle.
Loctite 638 is very good for sorting it.
Check your footage at the time i stated, you can just see it briefly that you rocked one wheel and the other stayed still.
All the best mate, hopefully see you at a GL5 event again sometime.
hi MiM
well explained, but can't help on the motors, hope you sort it out,👍👍
cheers
Kev
Hi Kev, Thanks for the comment.
Looks like we are both in the same boat with our local football team results.
Lets hope the result of the wheel tread cleaning has a better result with perhaps solving the slipping and MCB tripping issues.
Cheers.
Andy G.
@@masterpiecesinminiature8299
yes football, i went to halifax, expecting them to lose, then getting past halifax i expected them to win at solihull and they lost, it's a funny old game as some past pundit use to say. But if everything was predictable the game would have died many years ago,!!!!
As for the motors, is there a bare wire hiding somewhere and earthing out now and again! Just a thought from my non electrical grey cells!🤣🤣
@@MrFactotum Hi Kev,
Thanks again,
The wiring is the original (as purchased) with recent MCB modification, so the wiring will be changed, but no shorting out wires were found, and the plug together connectors have tie wraps round them to ensure they do not become separated while the loco is in operation.
Cheers again.
Andy G.
Hi Andy I’ve not been able to find your motors anywhere yet as with the motor tripping I think maybe one has got hot which has happened to my Loco because of slipping on my Loco when this has happened I’ve lost all power until the motors have cooled down they only have to get abit hot once cooled down back to normal all ok because you have mcbs on each motors your Loco will still run at reduce power as oiling goes you have oiled the same places as I would not to much as you said in your video i have cleaned my wheel sets by putting the Loco on its side with the batteries upright if you have a look at my video of this might be of help in the future the name on the key ring only brings up flowers there wasn’t a class 31 with that name so probably the owner before liked flowers hope some of my comment makes sense kind regards glen
Thanks Glen.
That does help, as actually upon first inspection imediately upon the failure, we had only 2 motors running, but the next minute it was running again which puzzled us, but only 1 mcb was out and needed resetting to get the fourth motor back in action.
May be a thermal trip in one of the motors ( operated to protect it).
I thought the control box might have been warmer than normal too.
With that in mind, during improving detail I will also include better ventilation.
At least I now know that a similar set up loco, exhibits a similar reaction to what I experienced, during similar conditions.
Cheers
Andy G.
Cheers
@@masterpiecesinminiature8299 hi Andy when my Loco stopped I thought the same control box problem but almost definitely the motors was warm I have notice as well if I turn the control box up eg the speed this is when it trips this maybe to much power going to the motors if I do it slowly little bit at a time no problems at all regards glen
@@mrmrst9020 Thanks again Glen,
Sounds like we are both singing from the same Hymn sheet.
I thought I could smell overheating at the time of the faliure and the cab roof appeared warm so I decided to terminate my session before any further problems were created.
I have a Park Side controller at the moment.
Cheers.
Andy G.
Best