LGB-2-6-0 motor problem - Page 3 - myLargescale.com > Community > Forums


Reply
 
LinkBack Thread Tools
Old 04-09-2017, 07:29 PM   #21 (permalink)
Senior Member
 
Bill Swindell's Avatar
 
Join Date: Jan 2008
Location: Martinez, CA
Posts: 658
Default

I have seen this before. I believe that you might have a problem with the board in the locomotive. Try to temporarily jumper the 2 wires that are next to each other on the motor block. I think you will find that the engine runs properly in oth directions.
__________________

Bill Swindell
Martinez, CA
Bill Swindell is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 04-09-2017, 10:19 PM   #22 (permalink)
Super Modulator
 
Greg Elmassian's Avatar
 
Join Date: Jan 2008
Posts: 20,413
Default

If I understand your suggestion Bill, you want him to short the track pickups to the motor leads, i.e. right pickup to one motor lead and left pickup to the other motor lead.

If there is a decoder in the loco (and we are pretty sure there is), and he jumpers these pins without disconnecting the decoder, he will instantly destroy the DCC decoder.

Greg
__________________
Be sure to visit my site, lots of technical tips & modifications, and a functional search.



Click here for Greg's web site

Note: Please. no private messaging, use regular email: [email protected]
Greg Elmassian is offline   Reply With Quote Quick reply to this message
Old 04-10-2017, 07:37 AM   #23 (permalink)
Senior Member
 
Join Date: Jan 2008
Location: South Eastern MA, USA
Posts: 3,865
Send a message via Yahoo to Dan Pierce
Default

Just unplug the 4 pin connector on the motor block and then tie the pins together with just the motor block.
Outer pins are motor, inner pins are track power. So, on a bench just the outer pins are needed to run the motor and with the cable to the engine disconnected.

Most LGB and all USA motor blocks have this wiring to the pins. LGB exception is the small motor block in the Olmana and Chloe where the outer pins are track and inner pins are motor!!
Dan Pierce is offline   Reply With Quote Quick reply to this message
 
Old 04-10-2017, 11:05 AM   #24 (permalink)
Super Modulator
 
Greg Elmassian's Avatar
 
Join Date: Jan 2008
Posts: 20,413
Default

No offense, but a waste of time to try this. I've been following the thread from the beginning.

The OP states that if he reverses the motor leads, the loco will run in the opposite direction.

Therefore he has proved that the track pickups work and the motor works... the problem is PAST the 4 pin connector.

Think about it for a moment.

Still waiting to hear if the motor on/off switch operates.

(I'm guessing that part of the decoder is damaged)

Greg
__________________
Be sure to visit my site, lots of technical tips & modifications, and a functional search.



Click here for Greg's web site

Note: Please. no private messaging, use regular email: [email protected]
Greg Elmassian is offline   Reply With Quote Quick reply to this message
Old 04-10-2017, 06:22 PM   #25 (permalink)
Senior Member
 
Cougar Rock Rail's Avatar
 
Join Date: Jan 2008
Location: Canada
Posts: 1,520
Default

I'm with Greg on this one. I think as the old motor failed, it drew too much current and fried part of the onboard decoder.
__________________
H&LA#1
SA2695
Cougar Rock Rail is offline   Reply With Quote Quick reply to this message
Old 04-11-2017, 07:47 AM   #26 (permalink)
Senior Member
 
Join Date: Jan 2008
Location: South Eastern MA, USA
Posts: 3,865
Send a message via Yahoo to Dan Pierce
Default

If it is the onboard decoder, they are available but not neccessarily programmed correctly for the mogul.
LGB moguls need the voltages all programmed for 5 volts for the smoke and lights, look at LGB onboard decoders CV 49-60.
Dan Pierce is offline   Reply With Quote Quick reply to this message
Old 04-13-2017, 11:14 AM   #27 (permalink)
Member
 
Join Date: May 2013
Location: Las Vegas
Posts: 67
Default

Thanks to all for responding. Sorry for not responding sooner, work got in the way of my playtime. I'm in the process of trying to find someone local who can help with the CV's. I don't have dcc or I would figure it out myself. All of the above posts help me with my troubleshooting and it does appear the board may have gone bad. As soon as I figure it out I will post with the final conclusion.

Bill
rntfrmme is offline   Reply With Quote Quick reply to this message
Old 02-23-2018, 12:49 PM   #28 (permalink)
Member
 
Join Date: May 2013
Location: Las Vegas
Posts: 67
Default

First off, my apologies for not responding sooner. thank you to all who responded. After much head scratching and trouble shooting I determined that the motor was the problem. The motor had some issues that further testing identified. I replaced the motor and life is good. Forward, backward, fine speed control etc, all improved. Sometimes it can be the simplest things.......;-)
rntfrmme is offline   Reply With Quote Quick reply to this message
Old 02-23-2018, 03:25 PM   #29 (permalink)
Super Modulator
 
Greg Elmassian's Avatar
 
Join Date: Jan 2008
Posts: 20,413
Default

bad brushes? thrust bearing? too much fore aft play in motor shaft?

inquiring minds (still) want to know ;-)

Greg
__________________
Be sure to visit my site, lots of technical tips & modifications, and a functional search.



Click here for Greg's web site

Note: Please. no private messaging, use regular email: [email protected]
Greg Elmassian is offline   Reply With Quote Quick reply to this message
Old 02-24-2018, 07:59 AM   #30 (permalink)
Senior Member
 
Join Date: Jan 2008
Location: South Eastern MA, USA
Posts: 3,865
Send a message via Yahoo to Dan Pierce
Default

Greg, sometimes the lateral play in a motor will allow the end shaft to shift out of place, and LGB moguls have a 'long shaft' motor. Add to that that the axle shifts with a direction change which moves the idler gear also. Now the motor gear can be out of alignment enough to catch the side of the idler gear and stall the motor, and eventually strip the plastic idler gear. This will occur in only one direction.
Dan Pierce is offline   Reply With Quote Quick reply to this message
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the myLargescale.com > Community > Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in


Thread Tools

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
LGB MOTOR 1toppump Beginner's Forum 10 01-12-2020 11:17 PM
LGB Mallet motor riderdan Rolling Stock 7 07-28-2014 05:45 AM
Need LGB parts (motor especially) scoobster28 Model Making 4 11-29-2011 09:42 AM
One motor on Dual Motor LGB trains siezing up bcwa Public Forum 11 02-14-2009 09:13 AM
Help with DC motor problem? lownote Rolling Stock 10 07-10-2008 06:33 PM

Powered by vBadvanced CMPS v3.2.3

All times are GMT -4. The time now is 01:43 AM.



Powered by vBulletin® Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Content Relevant URLs by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.