Horrible screeching type noise on my 675

[LL675]

my 675 makes that noise when comming out of one turn, but not the others. And I Lube it regularly.

[3railguy]

I've found the worst screecher on spur gear motors to be the armature shaft bushings. These bearings see the highest RPM. Give them each a shot of oil. Be careful not to over do it on the motor brush side or you risk getting oil on the comutator face.

[Fred Bear]

I had the same exact problem, using a generous amount of good grease whipped the problem. Don't hold back on the lubricant. Jake

[Anonymous]

Check the bearing plate on the opposite side of the armature, you can easily forget to grease it when reassembling it. That will cause a screech. Ive never had driving rods squeal, just squeak intermitently.

[yallaen]

Ok, so I put the 675 back together...I oiled the axles, cleaned everything up. I haven't greased the gears :( Didnt have time to locate it

So, I start running it around the track, and sometimes it makes a horrible screeching noise. Could I have tightened the screws on the drive wheels for the crossbar assemblies too tight? Or do I need to run out to the store before closure today and get some grease quickly?