Lionel TMCC Engine Takes off Fast in Command Mode

Since that unit doesn't have cruise control, it's usually a failure of a board that does that.  Since you've programmed them, do you see the light blink when you set the TMCC ID?  Are you SURE they're switched back into RUN mode?  Can you blow the horn under command control?  Do they take off right away or after cracking the throttle?

John, its 18286 UP Dash 9's. They are in run mode. I can use all the features. Its just takes off like a jack rabbit when I ease into the throttle. As for the AC motored switcher, I dont know whats causing that one.

Motor sensor/flywheel?

Over voltage - PW ZW can output more than 18v AC?

WAG - bad battery for railsounds?

It was the Flywheel magnet, it was broke. Ordered a new motor.

Would have been a good opportunity to add ERR Cruise. I had one of my magnets let loose and I installed the ERR myself. (And I'm no expert!) It looked much simpler than replacing the motor!

ZWPOWER13 posted:

It was the Flywheel magnet, it was broke. Ordered a new motor.

There is a rebuild magnet part/kit. You can salvage the motor. Our sorely missed (deceased) forum friend, BoxCar Bill was good at this stuff. Somewhere, I have the kit and fix saved.

The magnets were fragile for some reason and caused weird issues when they cracked.

Glad you discovered the problem. The early Legacy engines have a good feel to them.

Actually, replacing the motor is very easy Jeff.  Unplug the 3-wire plug, unsolder the two motor feeds, drop in the new motor, put it back together.

Carl, getting the flywheel off with out the proper puller is not easy, and it's very easy to wreck the motor trying.  For the small difference in price, I just buy the motor.

gunrunnerjohn posted:

Actually, replacing the motor is very easy Jeff.  Unplug the 3-wire plug, unsolder the two motor feeds, drop in the new motor, put it back together.

Carl, getting the flywheel off with out the proper puller is not easy, and it's very easy to wreck the motor trying.  For the small difference in price, I just buy the motor.

Thanks, John, I forgot about the pulling part. I recall the thread on the Challenger in England. He had to have a machinist friend pull it. yep, new motor it is.

I am still looking for a nice wheel puller that won't break the bank that I can pull these with, but so far no luck.

ZWPOWER13 posted:

It was the Flywheel magnet, it was broke. Ordered a new motor.

how did you know it was a broken magnet , can you see it , my UP 7616 is doing the same thing taking off fast but when i hit the brakes it slows but no  squeaking brakes , thanks Dave

If you look at the motor flywheel, the gray ring around it is the Odyssey magnet ring.  If that's missing, it will take off as soon as you crack the throttle.  If it's just loose, it can take off, or run erratically.  If it's just loose, push it back up against the rim at the top of the flywheel and secure it with CA adhesive.  If it's broken, you need to either get a new motor assembly or buy the flywheel and magnet repair parts and pull the old flywheel and install the new one with the magnet ring.

It would depend on the motor that determines if its better to replace the motor or get an ERR Cruise M. For most diesels with Mabuchis I would just replace the motor. On steam engines with a Pittman I would get a Cruise M. I still have a few flywheel replacements and magnets but after these get used up I will just begin replacing motors.

Not all diesels are that easy to get the motor out either. The Odyssey F3s require removing a boards and light shield in order to get to the screws on top of the truck. Then hope they are not loctitited in. 

Many possible solutions.

Pete

Sometimes it's not possible to get the whole motor assembly, I've run across that several times.  In that case, I keep a couple of the rebuild kits around to do it the hard way.  Since I picked up the Timko wheel puller, the replacement job is pretty easy, that slides the flywheels right off.

gunrunnerjohn posted:

If you look at the motor flywheel, the gray ring around it is the Odyssey magnet ring.  If that's missing, it will take off as soon as you crack the throttle.  If it's just loose, it can take off, or run erratically.  If it's just loose, push it back up against the rim at the top of the flywheel and secure it with CA adhesive.  If it's broken, you need to either get a new motor assembly or buy the flywheel and magnet repair parts and pull the old flywheel and install the new one with the magnet ring.

yes its broke in half its number is 6-28524 chessie 7616 & i really like it , does anyone have the magnet that would be great and the flywheel let me know or can a err cruise commander work ? 

Dave k posted:

gunrunnerjohn posted:

If you look at the motor flywheel, the gray ring around it is the Odyssey magnet ring.  If that's missing, it will take off as soon as you crack the throttle.  If it's just loose, it can take off, or run erratically.  If it's just loose, push it back up against the rim at the top of the flywheel and secure it with CA adhesive.  If it's broken, you need to either get a new motor assembly or buy the flywheel and magnet repair parts and pull the old flywheel and install the new one with the magnet ring.

yes its broke in half its number is 6-28524 chessie 7616 & i really like it , does anyone have the magnet that would be great and the flywheel let me know or can a err cruise commander work ? 

If this is Odyessy then it would be much easier to use an ERR Cruise M which allows you to keep the R2LC and just replace the motor driver board, DCDS.

A magnet and replacement flywheel is less money but you would also have to get or borrow a flywheel puller. Now you are getting close to the cost of the Cruise M especially when adding in shipping costs.

Pete

Thanks Pete,Where’s the best place to get one of theses boards & Since mine is DC I’m assuming I’ll need  err cruise command board 

Dave k posted:

Thanks Pete,Where’s the best place to get one of theses boards & Since mine is DC I’m assuming I’ll need  err cruise command board 

Dave, get them from the source. electricrr.com

They offer a number of cruise products. Send them an email with info about your engine and they will let you know what the best option is for you.

Pete

Electric Railroad co.

Sounds like a job for the Cruise M board. I used this on a Lionel Dreyfuss Hudson, it really improves the engines performance with the extra speed steps.

http://www.electricrr.com

Nick