Locomotive Wheel Slippage on Tracks - Proto 1000s

[RR_Mel]

Check the A unit wheels, if you can easily rotate the wheels with your thumb the axle gears need to be replaced.

I use Athearn ATH60024 gears stocked at my LHS.  Make sure you gauge the wheels properly after replacing the gears.


Mel


 
My Model Railroad   
http://melvineperry.blogspot.com/
 
Bakersfield, California
 
Turned 84 in July, aging is definitely not for wimps.

[Shock Control]

Thanks, and duh, I should have tested them separately before posting.  The B unit is running fine.  The A is stopping and starting.  The slippage was the B trying to push the A while it was stalled. 

I don't have a permanent layout right now, but I do a fairly elaborate winter layout under the tree each year.  The engines have been in my closet since January, and I took them in for routine cleaning and lubrication.  

I have had these for several years.  They typically run great.  

[garya]

Shock Control

I have an HO Proto 1000 F3 A&B unit set that I recently got serviced.  It will run a little bit and then the wheels will apparently start slipping.  I am trying to run it slowly.  When it stops, and I increase the speed, I can hear the motor speeding up, but it stays in place.  This does not occur in uniform places on the track, so I do not think it is a track issue.  It also occurs in both forward and reverse.  

Do you think there is a part that needs to be replaced?  

 

What kind of service was done?  Maybe that will point us in the right direction.

Is it both the A and B unit?  Can you run them separately to see if they both do it?  Are they pulling anything?

Does it make a clicking or clunking noise?  These units were notorious from cracked gears, so that's a possibility.  

You have to take the shells off and watch to see what's going on under the hood, so to speak.

[Shock Control]

I have an HO Proto 1000 F3 A&B unit set that I recently got serviced.  It will run a little bit and then the wheels will apparently start slipping.  I am trying to run it slowly.  When it stops, and I increase the speed, I can hear the motor speeding up, but it stays in place.  This does not occur in uniform places on the track, so I do not think it is a track issue.  It also occurs in both forward and reverse.  

Do you think there is a part that needs to be replaced?