 Joined: 09/08/2008(UTC) Posts: 1,919 Location: Auckland,
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Hi Guys, I’m looking for an exploded diagram of the TT800. If anyone has a copy it would be much appreciated if it could be posted on the forum.
Cheers…
Mike
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 Joined: 04/02/2011(UTC) Posts: 3,563 Location: Paris, France
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Hi Mike Here is what I have. Sorry my scanner is not available   It is a reprint of a Märklin technical sheet for shops. Cheers Jean |
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 1 user liked this useful post by JohnjeanB
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Joined: 09/08/2008(UTC) Posts: 1,919 Location: Auckland,
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Thanks Jean, much appreciated.
Any chance someone can provide a photo showing the light change over switch behind the reversing unit. Mine is missing a few bits and I need to figure out what i am missing.
Cheers….
Mike
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 Joined: 23/07/2014(UTC) Posts: 8,475 Location: ENGLAND, Didcot
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Originally Posted by: mvd71  Thanks Jean, much appreciated.
Any chance someone can provide a photo showing the light change over switch behind the reversing unit. Mine is missing a few bits and I need to figure out what i am missing.
Cheers….
Mike I'll try and dig out my copy of the same document tomorrow, and see if I can do a better scan.
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Joined: 04/02/2011(UTC) Posts: 3,563 Location: Paris, France
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Hi The early TT800 had a schleppkontakt (trailing contact) to switch on either front or rear lights. Later TT800 had no trailing contact. Instead, lights were connected to each of the inductor coils. I don't have a picture of a TT800 Schleppkontakt but I have one on my DL800 from 1951. Here it is  Principle on a rotating axle, a spring and clutch force a contacting lever to turn in one direction or the other. This was later replaced by a cheaper system connection the headlights to one of the inductor windings (usually wired at the Perfekt reversing unit). Cheers Jean |
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2 users liked this useful post by JohnjeanB
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 Joined: 22/09/2009(UTC) Posts: 2,073 Location: Edinburgh,
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The CCS 800 also had the same type of trailing contact. |
1957 - 1985 era
What's digital? |
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Joined: 04/02/2011(UTC) Posts: 3,563 Location: Paris, France
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All high end locos during 1945-1951 had this trailing switch: CCS800, DL800, ST800, TP800, TT800, RE800, MS800, DT800
All this was replaced around 1951-1952 by using the direction relay to also power the lights.
In one direction, the relay would connect one of the induction coils to the frame thus turning off the corresponding headlights while the other headlights were connected to the studs (B) through the motor and the other induction coils.
So the results were a slighly adverse current in the inductor, reducing a little its magnetic field and providing headlights with a slightly reduced voltage
This is why Märklin did not fitted this light reversing system to smaller motors (SFCMs) both for economy and adverse effects on magnetic field.
Cheers
Jean |
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2 users liked this useful post by JohnjeanB
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Joined: 23/10/2010(UTC) Posts: 2,061 Location: FRANCE
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Originally Posted by: JohnjeanB All high end locos during 1945-1951 had this trailing switch: CCS800, DL800, ST800, TP800, TT800, RE800, MS800, DT800
All this was replaced around 1951-1952 by using the direction relay to also power the lights.
In one direction, the relay would connect one of the induction coils to the frame thus turning off the corresponding headlights while the other headlights were connected to the studs (B) through the motor and the other induction coils.
So the results were a slighly adverse current in the inductor, reducing a little its magnetic field and providing headlights with a slightly reduced voltage
This is why Märklin did not fitted this light reversing system to smaller motors (SFCMs) both for economy and adverse effects on magnetic field.
Cheers
Jean Hi, just to illustrate what was saying Jean, here is the wiring :  Best Regards Joël |
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