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Question about converting Marklin(Hamo) 2 rail to 3 rail
 Joined: 06/08/2011(UTC) Posts: 95 Location: ft lauderdale
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Hi all I found this beautifull Marklin Hamo #8324 2 rail. I was wondering if it is at all possible to convert this beauty to digital 3 rail. I still have 1 conversionset of #60760 which i think i could use (please correct me if i am wrong).I know you will  . What other part numbers do i need like pickupshoe etc. Could the members please explain to me what other steps i need to take if the conversion is at all possible. As always thank you all in advance for any help you can offer me Roger 
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 Joined: 27/08/2005(UTC) Posts: 11,071 Location: Murrumba Downs QLD
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Conversion is possible, rather easy, solder 4 wires together, fit a Permanant Magnet and Slider and a Decoder.
the wheel pickup wires to be soldered together.
Magnet changed, Slider fitted. FInd the 3 rail version of the loc and use that Slider.
Nev |
NOt wearing the Pink Pinny, which is hard to see and now I have a white Pinny which also is hard to see against MY pure white Skin Still have 2 new shiny tin Hips that is badly in Need of Repair matching rusting tin shoulders
and a hose pipe on the aorta
Junior member of the Banana Club, a reformist and an old Goat with a Bad memory, loafing around |
 1 user liked this useful post by nevw
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Joined: 15/03/2003(UTC) Posts: 9,588 Location: Australia
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If you are going to use computer control or contact tracks then you also need real AC wheels, otherwise the loco will be invisible to the computer and it will stop on contact tracks with the earth missing from the wrong side.. |
Adrian Australia flag by abFlags.com |
1 user liked this useful post by xxup
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 Joined: 16/02/2011(UTC) Posts: 124 Location: Bergamo - italy
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No need for AC wheels: just connect together the cables from wheels pick-ups (2 or 4 depending on the loco).
Eugenio
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1 user liked this useful post by eroncelli
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Joined: 15/03/2003(UTC) Posts: 9,588 Location: Australia
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Originally Posted by: eroncelli  No need for AC wheels: just connect together the cables from wheels pick-ups (2 or 4 depending on the loco).
Eugenio It does not work unless the pickup contact running is on the inside of the wheel.. On some Hamos is is on the axle with one wheel linked to the axle and the other is isolated from the axle.. |
AdrianAustralia flag by abFlags.com |
1 user liked this useful post by xxup
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Joined: 23/08/2006(UTC) Posts: 2,597 Location: Beverly, MA
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1 user liked this useful post by kbvrod
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Joined: 16/02/2011(UTC) Posts: 124 Location: Bergamo - italy
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Just to be simple: in DC operation, 1 wheel (or set of wheels on 1 side) is connected to, say, "plus" and the other (on the other side of the loco) to "minus"; otherwise the motor couldn't run
When you convert to AC operation, you connect both wires from the wheels (both sides) together and the center pick-up (added) is the second connection.
Thus, whatever the isolation on wheels, they are "short-circuited" with this connection and, hence, no need for ac wheels (unless you ave problems with the "shape" of the wheels, that is slightly different in Maerklin system)
Eugenio
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1 user liked this useful post by eroncelli
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 Joined: 31/12/2010(UTC) Posts: 3,994 Location: Paremata, Wellington
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Originally Posted by: eroncelli Just to be simple: in DC operation, 1 wheel (or set of wheels on 1 side) is connected to, say, "plus" and the other (on the other side of the loco) to "minus"; otherwise the motor couldn't run
When you convert to AC operation, you connect both wires from the wheels (both sides) together and the center pick-up (added) is the second connection.
Thus, whatever the isolation on wheels, they are "short-circuited" with this connection and, hence, no need for ac wheels (unless you ave problems with the "shape" of the wheels, that is slightly different in Maerklin system)
Eugenio Hi Eugenio, I wonder if you may be missing a detail here because there are no 'wires' from the wheels to connect. The Hamo version has a wiper which rubs against the inside of the insulated wheels, but this wiper must be removed to fit the pickup shoe, which leaves those wheels electrically isolated from the rest of the loco. The other side is ok because the electrical path is through the wheel/axle, and the chassis. Conductive paint is one option but cannot be applied to the driving wheels, only the non-powered bogie. Just replacing the non-powered bogie with an AC one may be simpler and more reliable Cheers Steve |
Cookee Wellington  |
1 user liked this useful post by cookee_nz
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Joined: 27/08/2005(UTC) Posts: 11,071 Location: Murrumba Downs QLD
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Steve,
The wipers (on each wheel end up being connected to wires, one to each side of the motor. I left them in place. On the centre of the unpowered truck there is a Screwed in bump for switch activation. the slider is screwed there and run the wire up.
Nev |
NOt wearing the Pink Pinny, which is hard to see and now I have a white Pinny which also is hard to see against MY pure white Skin Still have 2 new shiny tin Hips that is badly in Need of Repair matching rusting tin shoulders
and a hose pipe on the aorta
Junior member of the Banana Club, a reformist and an old Goat with a Bad memory, loafing around |
1 user liked this useful post by nevw
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Question about converting Marklin(Hamo) 2 rail to 3 rail
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