I have an MTH U30C diesel, PS3 and the rear coupler keeps firing whenever going through a curve or when the coupler drops low. It’s a recent development as I’ve run the engine for a while without a problem. I know it is making contact with something but it is not obvious either when the engine is right-side up or when I hook it up to power and view it upside down. Before I take the engine apart, can something point me to a schematic online where I may get an idea of what to look for before disassembling? And has anyone come across this who may be willing to send me off in the right direction? Thanks.
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