I had one for a while and pulled it with my M915.....no issues what so ever. Those trailers were configured so that a 20 foot shipping container could be locked onto them for transport. They are duel voltage so they can be pulled with a civy tractor too.
OK....gotcha.....I have my numbers crossed up. You can pull the older trailers with air over hydraulic brakes with an M915. The only issue may be with king pin placement on the trailer. If your M915 has a sliding 5th wheel you should be OK. I pulled several types of older trailers with my M915. You may have to slide the 5th wheel all the way back and remove the mud flaps.
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