[sean31]

working on a cart for a friend. Apparently all worked fine until it didn't. I tested all batteries first (which were good) charged the pack and started troubleshooting. I came up with lack of continuity between the A1 and A2 terminals. From searching threads this told me the brushes were bad. Took everything apart and the brushes were almost non-existent. Cleaned everything up free of carbon dust and cleaned the commutator with carb cleaner and hit it with a scotch brite pad. It looked a little beat up, but I reassembled everything anyway. Tested the motor and verified continuity between A1-A2 and F1-F2 and all was well. Re-installed and no go :( . My question is this most likely a motor replacement at this point ? is there anything else I should be checking prior to?
thanks Sean