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Trevis Lawton
Posted on: 6 Jan 2012, 10:53


Baggage Porter
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Group: Members
Posts: 4
Joined: 28-December 11
From: Perth, Western Australia
Member No.: 11,765


Well I am fairly sure I have identified the problem. Either the worm screw is not sitting low enough, or the cog below is not sitting high enough. They simply are not making significant contact even though the worm is snugly fixed into its housing and the cog seems to be sitting sweetly. If I sit with a little pressure on the worm (carefully with a screwdriver) she takes off and keeps going like a trooper. The question is, how can one consistently apply that pressure once the top of the loco is put back in place.

Any ideas gratefully received - anyone?
  Forum: N & 2mm Scale · Post Preview: #227464 · Replies: 2 · Views: 1,189

Trevis Lawton
Posted on: 3 Jan 2012, 12:09


Baggage Porter
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Group: Members
Posts: 4
Joined: 28-December 11
From: Perth, Western Australia
Member No.: 11,765


Trevor,

I hear you. Unfortunately, while it was working I added a LokSound chip into a dummy wagon behind the tender (speaker simply too big to get it in the tender or loco alongside the decoder), and made a small incision between the top of the tender and the base to allow the wires through from the decoder to the speaker in the trailing wagon. Whilst it is the tiniest of modifications and barely noticeable with the wires removed I can already hear the response in my head. Cheers.
  Forum: N & 2mm Scale · Post Preview: #226743 · Replies: 8 · Views: 1,764

Trevis Lawton
Posted on: 3 Jan 2012, 11:43


Baggage Porter
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Group: Members
Posts: 4
Joined: 28-December 11
From: Perth, Western Australia
Member No.: 11,765


I am hoping someone can provide some suggestions on how to fix my relatively new Dapol B1 steam loco. It just doesn't want to move, other than an occasional spurt here and there.

It is DCC chipped and has run a few times half decently. However now the shaft between the tender and loco spins when power is applied, and is still connected to the loco coupling inside the cab, but no movement from the loco. I have taken the lid off and the worm still seems to be connected and tightly seated and if I manually move the coupling shaft, the cogs and wheels move very incrementally . But then I put it back on the track and the same problem. I can't really understand why the coupler spins when it seems tightly connected to the worm, yet no movement. If it's spinning shouldn't it have to spin the loco wheels? As you can tell I am no engineer in this department...

If I push it I will get the ocassional 10cms of action out of it, but then it stops, while the shaft spins away happily.

Is there anything else to clean or check on the loco side as the tender obviously is providing power as expected?

Any help gratefully received.

  Forum: N & 2mm Scale · Post Preview: #226739 · Replies: 2 · Views: 1,189

Trevis Lawton
Posted on: 2 Jan 2012, 08:44


Baggage Porter
*

Group: Members
Posts: 4
Joined: 28-December 11
From: Perth, Western Australia
Member No.: 11,765


Glad you like your B1. My Dapol B1 is new and hardly runs at all. The little cam shaft spins around, but the loco only jerks every now and then. The cam is in its seat, and after taking it apart the worm seems to be in place and wheels turn, so goodness knows what it's stopping it...

Unlikely I will buy another Dapol with a tender drive, I don't have the money to waste. It's not as if they're a cut price a option.
  Forum: N & 2mm Scale · Post Preview: #226387 · Replies: 8 · Views: 1,764


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