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Re-trucking with TMW Dalman 2-level
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sctry
In my effort to upgrade my Red Caboose CGW X-29 style boxcars with the new TMW Dalman trucks I have a problem. It appears that the TMW Dalman truck side frame interferes with the carbody bolster by about 0.010". Anyone else with this problem?
Shims between the body and truck bolster will result in the coupler being too high. I am considering removing the modeling draft from the top of the truck sideframe to gain clearance but that may only gain about 0.005". Suggestions please. John Greedy |
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Anthony Thompson <thompson@...>
John Greedy wrote:
In my effort to upgrade my Red Caboose CGW X-29 style boxcars with the new TMW Dalman trucks I have a problem. It appears that the TMW Dalman truck side frame interferes with the carbody bolster by about 0.010". Anyone else with this problem?I'd agree that the draft of the model sideframe is the best thing to remove, as it's usually rather excessive compared to a prototype truck. Tony Thompson Editor, Signature Press, Berkeley, CA 2906 Forest Ave., Berkeley, CA 94705 www.signaturepress.com (510) 540-6538; fax, (510) 540-1937; e-mail, thompson@... Publishers of books on railroad history |
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Brian Carlson <brian@...>
John: I did not have this problem. I had a newer run patch panel CGW X29
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with TMW trucks and code 88 wheels. Are the car body bolsters full seated against the floor on the outer edges? Brian J. Carlson, P.E. Cheektowaga NY -----Original Message-----
From: STMFC@... [mailto:STMFC@...] On Behalf Of sctry Sent: Thursday, August 27, 2009 4:38 PM To: STMFC@... Subject: [STMFC] Re-trucking with TMW Dalman 2-level In my effort to upgrade my Red Caboose CGW X-29 style boxcars with the new TMW Dalman trucks I have a problem. It appears that the TMW Dalman truck side frame interferes with the carbody bolster by about 0.010". Anyone else with this problem? |
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Rob Adams
John;
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I had exactly the same issue, but the solution to be an easy one. I have an early run CGW AAR box, stock # RC-7048-1, and added the TMW trucks with Intermountain semi-scale wheel sets. I solved the problem by adding a red 0.015 thick fiber washer from Kadee to each bolster. With this configuration and Kadee #58 couplers, the car mated perfectly with a Kadee coupler height gauge. Regards, Rob Adams sctry wrote:
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sparachuk <sparachuk@...>
--- In STMFC@..., "sctry" <JGreedy@...> wrote:
John: On a lot of freight car bolsters and freight car trucks there are castings that represent devices intended to keep the car level. I'm sorry I can't recall the name of such things if I ever knew it. However, these castings sometimes meet inconveniently on models and cause interference similiar to what you are describing. Trimming these parts off with some nippers might solve the problem. Stephan Parachuk Toronto |
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tmolsen@...
The devices that you are referring to are side bearings. These devices are mounted to the tops of each side of the truck bolster consisting of a bracket with a roller centered in it and a contact plate mounted on the car body frame over the truck bolster bracket. This is supposed to support the car body to stabilize the car body when running over rough track reducing body rock. You can find photos of these devices in the car builder's cyclopedias. Suckey was one manufacturer that produced these devices and had ads in the CBC's.
Tom Olsen 7 Boundary Road, West Branch Newark, Delaware, 19711-7479 (302) 738-4292 tmolsen@... |
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sctry
Problem solved similar to Rob's solution. I have a couple of RC-37210 factory assembled cars with Accurail sideframes with unknown semi-scale wheel sets (with tapers steel axles which are out of gauge and unable to free whells on the axle).
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My solution: removed draft angle from top of side frame but clearance went from negative to zero. That is when I checked the coupler height against the KD gauge and found the carbody too low. I then added a 0.005 washer to the truck bolster and everything is OK. John Greedy --- In STMFC@..., Rob Adams <steamera@...> wrote:
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