coupler arm parts

The proper parts breakdown was already provided to you here: https://ogrforum.com/...-diesel-u36b-coupler

You have found the following kit which should take care of everything coupler related and remove the need to install the rivet discussed here: https://ogrforum.com/...c/coupler-rivet-tool 

The whole arm dropping down would probably be addressed by replacing the spring and coupler head shaft, but the whole kit would make sense.

As an aside, I feel it would be better forum etiquette for you to have kept these three highly related topics consolidated into one.

thanks for the reply I do have one of these now but would have to take apart another diesel I have to determine if I have the front or rear as they are not the same sorry I did not consolidate this into one post but thought I only needed to replace the coupler head spring

The U36 uses the same coupler kit for the front and rear.

another u36 I fixed couplers on has a different width “T” bar that slips down thru the coupler arm from the top one is wider than the other could it be the result of a different manufacture year?

A simple fix to repair drooping couplers, either stretch out the spring a wee bit for the t bar, or pack a couple extra small washers behind the e clip.....this should be a simple procedure either way.....just don’t get it so stiff the armature won’t release.............Pat

Wait - I think signals have gotten crossed - initially we were looking at an early MPC era U36, now you state that this is the later 1980 6-8061 Chessie System Diesel... The former used 2 axle trucks where as the later used 3 axle trucks. The 3 axle trucks of the 6-8061 used a different setup.

thanks for that info Pat I might try that first before replacing

the first engine needing coupler repair was the u36 two axle I believe to be about a 1970 year production the one i’m working on now is the three axle u36b I believe to be a 1980 year

regarding the coupler arm I believe I could install the coupler arm illustrated by keeping the existing “T” bars as the existing coupler also uses these “T” bars I hope i’m correct if not I appreciate any input

I’m back to square one on the coupler issue trying to find the front and rear coupler assembly to fit a chessie u36d limited edition three axle I compare the limited edition to the earlier u36b and the newer version has couplers about a half inch longer still hoping for the part number that will work any info from anybody?

just the correct coupler arm would work with the existing springs clip washers and “T” bar

rebuilder posted:

...still hoping for the part number that will work any info from anybody?

You're going to have to start using catalog numbers of your locomotives so we won't be guessing as to what you actually have there.

you are correct looking for the catalog/engine numbers so far nothing is turning up other coupler arms readily available are about a half inch too short just putting the feelers out there to find a pair that can fit

I believe your Chessie Limited is 6-8061 and is included in Lionel Supplements 1-10. Your earlier U36 is also included in these same sections.

Here is the part breakdown for the 3 axle motor truck of the Chessie. I would start with replacing the Coupler Armature Plate if it drags the whole coupler head down (provided a details visual inspection reveals another issue)

The U36 breakdown is shown in this service manual in section 1-47 through 1-50. The three axle motor truck is 8872-115 is shown in 15-90 through 15-91

https://www.lionelsupport.com/...nt1to9/1Complete.pdf

thanks a million for that good info  the coupler head is pulling down with the armature that’s why I need to replace it and the knuckle has a broken or missing spring that would be an easy fix I would just hope that if I order a replacement arm and armature I don’t end up with the same problem

rebuilder posted:

thanks a million for that good info  the coupler head is pulling down with the armature that’s why I need to replace it and the knuckle has a broken or missing spring that would be an easy fix I would just hope that if I order a replacement arm and armature I don’t end up with the same problem

Before you go buying a bunch of parts in hopes for a shotgun repair, why not post up pics of the afflicted locomotive......or a short video showing the actual problem....someone may have a better remedy than throwing parts at something and hoping it gets fixed. The knuckle spring and rivet are a simple repair. Some of those arms that are completely plastic, have the spring made on the knuckle as a little plastic tang. The die cast metal arms have a separate wire round spring like postwar type.......again, posting up pics or videos of your problem will yield you a plethora of solutions....there’s a lot of good techs on here that will lend their expertise.............Pat

I would be more interested in reading this thread, since I have similar issues with couplers, if posters didn't make like e e cummings and instead used punctuation and upper and lower case in the proper manner. English is a beautiful language, if only it was used correctly.

this is the coupler I hope to replace so far it is said to be part #2321-86 but it does not appear to be correct this is the three axle truck a different coupler set up than the two axle any input on this?

here is another pic if it can help

As stated before, the 2321-86 is NOT for the 3 axle truck. The parts list, diagrams and everything is included in the 6+ pages in the Lionel Supplement as indicated before. There you can find part numbers and everything you need for both the two and three axle couplers for your U36 engines.

bmoran4 posted:

I believe your Chessie Limited is 6-8061 and is included in Lionel Supplements 1-10. Your earlier U36 is also included in these same sections.

Here is the part breakdown for the 3 axle motor truck of the Chessie. I would start with replacing the Coupler Armature Plate if it drags the whole coupler head down (provided a details visual inspection reveals another issue)

The U36 breakdown is shown in this service manual in section 1-47 through 1-50. The three axle motor truck is 8872-115 is shown in 15-90 through 15-91

https://www.lionelsupport.com/...nt1to9/1Complete.pdf

 

sorry for the mis read on my part and that info took me to what I needed to work on the coupler issue and future parts if needed. I know this engine is a low end but is a great runner and flawless appearence a definite keeper

If you study closely, the documents BMORAN4 provided are not the same as the truck REBUILDER has. The service page is from a earlier version truck. You will notice the centering springs are different, and a screw replaces a palnut. Coupler arms are different.

BTW; this is a pick-up truck, not a motor truck.

@Chuck Sartor, The Lionel Supplement 17 Index points to the supplement 1 pages referenced for the 6-8061. If you have better documents, please share!

Look up 8815-115

A higher quality coupler assembly is 610-8005-650. This has a metal spring and armature, and will direct fit your loco.

thanks for the recent info. I did find a supplier that has 8005-650 no pic available on there site as it sounds like a complete assembly and that would be even better I have the pic included by the previous reply thanks!

is this coupler arm completely compatible with the lionel part number 8850-60 I would be concerned that the metal coupler arm might pull down to far and stop the armeture from releasing all the way if it bottoms against the top of the steps frame here is what I have now

To repeat what member XRAYVIZHEN said, "........ if posters didn't make like e e cummings and instead used punctuation and upper and lower case in the proper manner. English is a beautiful language, if only it was used correctly."  Without mentioning anyone directly, I'll simply say, "if the shoe fits, wear it."