Pancake Motor Tips
Here's the tips for Aurora/AFX, JLTO/XT, AWTjet/AWXT:
Disassemble chassis.
Check for bent axles, untrue rims/tires, nubs on tires/rims (sand them off until smooth).
Put a drop of oil where metal goes through plastic (Axles, arm shaft, rear gear shaft), spin the wheel/arm to work the oil in.
Adjust pickup shoes for better contact with rails.
Adjust comm brush holders (Tjets/TO's/Afx nonmag) / Make sure comm brush holders are parallel with chassis (Afx MT/XTs).
If needed, gently stretch any compressed springs.
Put some grease on the gears.
Reassemble chassis.
Put a little oil where the arm shaft comes through the bottom of the chassis.
Run the car on a 9V battery for 10 minutes.......reverse polarity for another 10 minutes.
Ready to run.