Bachmann Online Forum

Discussion Boards => HO => Topic started by: oldhhobbyreborn on March 11, 2015, 09:41:42 PM

Title: traction wheels
Post by: oldhhobbyreborn on March 11, 2015, 09:41:42 PM
Ok a little help here    I have a few old Bachman ho diesel locos that the rubber traction wheels have fell apart.....do they still offer these little rubbers and if so how the hell do you find them in the catalogs.....anybody got a part number
Title: Re: traction wheels
Post by: Len on March 11, 2015, 11:32:48 PM
It should be this one: http://estore.bachmanntrains.com/index.php?main_page=product_info&cPath=66_68_91&products_id=5534&zenid=9sksm6kqt44fct39inssb0n4n2 (http://estore.bachmanntrains.com/index.php?main_page=product_info&cPath=66_68_91&products_id=5534&zenid=9sksm6kqt44fct39inssb0n4n2)

Len
Title: Re: traction wheels
Post by: jbrock27 on March 12, 2015, 07:47:07 AM
OHRB, even when they had intact traction tires, did you find these locos ran well?
Title: Re: traction wheels
Post by: oldhhobbyreborn on March 12, 2015, 10:24:09 AM
For what they are they run well......more reliving old memories that anytime else
Title: Re: traction wheels
Post by: electrical whiz kid on March 12, 2015, 10:53:56 AM
Old hobby;
Can I make a suggestion?  Get rid of the traction tires altogether, and get the wheels to level alignment. 
I have never liked those traction tires, pretty much considered them to be more of a maintenance nuisance than anything else.

SGT C.
Title: Re: traction wheels
Post by: oldhhobbyreborn on March 12, 2015, 12:32:06 PM
I did that and.lost all pulling.power.......I have two small grades and they won't even pull 5 cars up the grade......found some 8 mm rubbers for dental braces that I am going to try tonight before I deal with Bachmann backorders
Title: Re: traction wheels
Post by: jbrock27 on March 12, 2015, 07:21:56 PM
I would make a suggestion as well OHRB, but I don't believe you would like it.
Title: Re: traction wheels
Post by: Len on March 12, 2015, 08:51:41 PM
OHRB,

I believe SGT C. was suggesting replacing the wheels with traction tire grooves with flat tread wheels. Not running the grooved wheels with no tire.

Len
Title: Re: traction wheels
Post by: rogertra on March 12, 2015, 09:02:03 PM
Quote from: Len on March 12, 2015, 08:51:41 PM
OHRB,

I believe SGT C. was suggesting replacing the wheels with traction tire grooves with flat tread wheels. Not running the grooved wheels with no tire.

Len


I'm sure that was the suggestion.

Cheers

Roger T.

Title: Re: traction wheels
Post by: oldhhobbyreborn on March 13, 2015, 09:08:08 AM
Ok where do I find those
Title: Re: traction wheels
Post by: jward on March 13, 2015, 10:15:46 AM
due to the differences in gearing you may have to pull the wheels off the axles and replace them with solid wheels. even then you will still have a pancake motored locomotive with poor electrical pickup.

perhaps a better solution would be to look into repowering these locomotives. if they are diesels, the f9 should fit the ft/ f7 chassis, and the u36b should fit the b23-7 chassis. in both cases, you would gain a good running locomotive with the bodies from your past.
Title: Re: traction wheels
Post by: electrical whiz kid on March 16, 2015, 07:18:25 AM
Considering what you will have to go through for this, the end does not justify the means.  The "old stuff" you see or have may not be worth the effort, considering the newer, better detailed, better running, the ease of DCC installation-as well as the quality-are a no-brainer.  I have older dinosaurs sitting in a shelf somewhere-and believe you me, that is just where they are going to stay.
SGT C.
Title: Re: traction wheels
Post by: GN.2-6-8-0 on March 16, 2015, 09:27:33 AM
You could also fill the grove with bull frog snot!
Title: Re: traction wheels
Post by: Joe Satnik on March 16, 2015, 01:19:46 PM
Where does one get bull frog snot?

Bull frog handkerchiefs, of course. 
Title: Re: traction wheels
Post by: rogertra on March 16, 2015, 02:19:49 PM
Quote from: GN.2-6-8-0 on March 16, 2015, 09:27:33 AM
You could also fill the grove with bull frog snot!

No you could not.

BFS is not a solid.

Best thing to do is replace the wheels.  IMNSHO, traction tires are awful things.  As shown in this post they wear out, or get loose, or disintegrate and after a few years, the manufacturer discontinues them so it becomes difficult if not impossible to replace them.  Other major issue with traction tires is they do not permit the wheels to spin if the loco is overloaded and stalls, this leads to early burnout of the motor.

On a quality manufactured locomotive, traction tires are not required.  This is why few of the leading quality model builders rarely offer traction tires and if they do, they also provide replace a set of regular wheels so that the traction tire wheels can easily be replaced.  If traction tires where such a good idea, all models would come equipped with them and they don't.

If a model comes with traction tires, I for one will never buy one.

Cheers

Roger T.
Title: Re: traction wheels
Post by: James in FL on March 16, 2015, 03:18:29 PM
QuoteNo you could not.


Perhaps Roger cannot do this, others have by following the manufacturer's instructions here;
http://www.bullfrogsnot.com/faq.asp

It has been in my case that the wheels do in fact slip within the traction tires, causing the tire to be stretched and thrown. I have yet to burn out a motor from a stalled condition.
Obviously Rogers's mileage varies.

I am not sure why anyone would load a lokie down enough to create a stall condition in the first place.
Seems somewhat foolish to me.

Try the link Len provided and buy the maximum quantity so you will have spares for many years to come.
p/n appears to be #1997

Good luck
Title: Re: traction wheels
Post by: jward on March 16, 2015, 03:28:45 PM
my experience with these poorly designed locomotives is that, when overloaded, they tend to spin their wheels. the rubber traction tires cause them, to bounce themselves off the rails?

why would anybody overload a lo0comotive? this is obviously a question from a person who has no grades on their layout. if you have upgrades, it is very easy to try to pull more cars than the locomotive can handle. this is especially true if you have many different locomotives, all with different pulling power. on a locomotive without traction tires, this overloading is usually not a problem. solid wheels spin but it causes no damage to them. I'd be much more concerned if they didn't spin as that would indicate a weak motor. if you can't pull the hill, you simply back down, drop off a couple of cars in a siding, and try again. or you add a second locomotive. in both cases, you do what the real ones do.
Title: Re: traction wheels
Post by: rogertra on March 16, 2015, 04:23:40 PM
Quote from: James in FL on March 16, 2015, 03:18:29 PM
QuoteNo you could not.

Perhaps Roger cannot do this, others have by following the manufacturer's instructions here;
http://www.bullfrogsnot.com/faq.asp


I did not know that, I stand corrected.  :)

Pulling power and "overloading" locomotives.  

I realise the modelling experience on this forum ranges from the rank beginner, through the tabletop 4 x 8 layout to the basement sized, prototypical model railroad and everything in between.

As many of you know, I class myself as one the latter with a half basement full model railroad that I like to think is modelled and run in a prototypical manner.  Therefore, I'd say I'm not the typical modeller on this forum.

On my model railroad, 20+ car freights are, or will be, the rule.  It is being built to handle them. Therefore, I need to know what I can expect each class/type of steam loco to haul up the future 2% grades to and from staging and possibly a second level.  I established this on my previous model railroad by the simple expedient of taking a loco, starting off with 12 or so cars and sending it up the 2%+ grade from hidden staging to the modelled part of the railway.  I'd add a few cars at a time until the loco stalled, with its wheels spinning.  I then backed it down into staging, reduced the number of cars until the engine could pull the train up the grade without any wheel spin.  I then removed two freight cars and that number of cars became the tonnage rating for that type/class of steam loco.  I didn't bother with diesels as model diesels usually out pull model steam and I always run at least two powered diesels on every freight train.

As I will have hidden grades, it is important that if a locomotive does stall with an overweight train its wheels will spin as I do not want a burnt out motor.  That's why traction tires are bad.  With traction tires the locomotive will just sit there with it's motor stalled and this increases the odds of the motor overloading and burning out.  As in the real railroads, wheel spin prevents damage.

Of course, on a 4 x 8 you won't need to be able to pull 20 car trains and, in fact, on a 4 x 8 traction tires aren't even required.  Just use some modelling skills and add some weight to the engine but again, not so much weight so the wheels will stall if overloaded, they must still be able to spin.

Cheers

Roger T.

Title: Re: traction wheels
Post by: James in FL on March 16, 2015, 10:47:07 PM

QuoteNo you could not.

Quotethis is obviously a question from a person who has no grades on their layout.

Funny... how what one thinks is what one knows to be true.

To me, stalling and spinning are two different things, but that's opinion for another thread.
The OP asks where, or how, to find replacement traction tires.
Len's reply offers an answer to the questions.

Title: Re: traction wheels
Post by: oldhhobbyreborn on March 17, 2015, 10:06:32 AM
Thank you James from florida....and remind me not to ask anymore questions in here.....these engines mean alot to me.......they may be junk to others but not me.....parts were ordered and they work fine for as much as they get used......Rember someday.....your prized dc will be old also
Title: Re: traction wheels
Post by: electrical whiz kid on March 17, 2015, 12:40:16 PM
...As will the rest of us.  Your sentimentality was not previously mentioned, and anyone writing here did so more from a sense of logic and experience than anything else.  I speak-at least-for my self, and anyone else who wants to join in.
To say [that you] will no longer bother with the site is rather short-sighted-but to each his own.

SGT C.
Title: Re: traction wheels
Post by: James in FL on March 17, 2015, 12:47:58 PM
You're welcome.
The oldest lokie I have that has traction tires is 30 years old still has the original tires on it and runs very well for what it is.  This is an N scale loco mind you.
The first day I owned it, I foolishly overloaded it and it threw a tire.
At that time I didn't know any better.
Was like a teenager driving a car at full speed just to see how fast it will go.
Foolish.
I order spares from Bachmann but have never used them.
This lokie has no monetary value so to speak, but to me it has a special place, as it was a gift from my better half, and will always be treasured.

Don't be discouraged from asking questions here.
Learn to separate the wheat from the chaff.
This has become the norm on this board,
OP asks a question.
A few reply with why you shouldn't do it,
A few reply with what you should do instead,
A few reply with what a piece of junk you have and how mine is so much superior tor yours,
A bunch will go off into thread drift, which has little or nothing to do with the original questions,
A few will brag about what they have, or how smart they perceive themselves to be,
Etc. etc. etc.
And after you have sorted out all that, you will find only a very small few have offered any real help.
Welcome to the boards.

Again don't be discouraged by all this and learn to grow a thick skin.
I wish you the best with those lokies

Good luck and keep posting
Title: Re: traction wheels
Post by: jbrock27 on March 17, 2015, 12:57:06 PM
Nice breakdown Jimmy.
Which category would you put yourself in?

Sarge said it all and best for me and my perspective.  Thank you Sarge.