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I got one of these several months back and have been having a blast with it.

 

I wanted to pass on something I found out and since all the old topics have been locked, I thought I'd start a new one.

 

I recall folks having issues with the TT stalling periodically and I had the same problem.  Mine seemed to be stalling only in certain locations, but not every time.

 

I'm using a variable/selectable DC voltage wall-wart to power mine and had it set on 9vdc.  I turned it down to 7.5vdc and so far have not had any stalling occur at that speed.  I read the instructions but I never saw if there was a maximum voltage recommended (other than max for the 12vdc motor).

 

I can also run it at 6vdc, but it's fairly slow even at 7.5vdc and works fine at that speed.

 

If any of you are having problems try reducing the voltage to the motor and see if that solves the issue.

 

Next step for me is to weather the TT.

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Bob,

I finally got mine running smooth last night.  When I looked real close at the TT rails I noticed that on one side the outer rails had bits of plastic on them.  I disengaged the motor and mounted the manual turning piece on the center shaft.  As I slowly turned it manually I found that the outer rails were hitting the raised blocks at certain locations, causing it to stall or force the cog out of the channel.  I unscrewed the rotating top and lightly filed down the problem rails with a Dremmel.  While apart I lubed the gears and cog ever so lightly.  I then reassembled the TT upside down.  Several points here:

1. be careful to insert the small barrel connectors in the right spot.  One is a hare longer than the other.

2. if you are laying track to the TT it helps to use 6'' pieces screwed down for future removal and maintenance.

3. put a drop of CA or similar on the bottom nut the center screw fastens to.

4. use 5 or more light pressure clamps to keep the top and bottom together while inserting and tightening the center screw.

I found no way to reassemble this right side up because of the barrel connectors which must ride free.  These connect the outer and center rail to the power ring inside the TT.

I reassembled the motor and it worked flawlessly both CC and CWise.  It was really quiet.  I'm using a variable DC HO Tech transformer set at 5 - 6 vdc.

Hope this helps.

John

Choochoopaul, I don't think a limit switch is needed.  The TT comes with a switch to control the direction and power shutoff.  There is a cog on the gear wheel which will enter a slot in the underside of the pit and cause it to rotate to the next stopping position.  At this point the cog exits the slot and rotates free of the pit until it grabs the nest slot and begins the rotation again moving the pit to the next track location.  It is at the point prior to the cog reentering the pit that you shut off the motor.  It's really a simple system that works well.  Obviously, the greater the power the faster the pit moves to the next location.  Hope this helps.

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