Asko T721 dryer service manual please. Burning smell. Opened top and back. Belt seems fine. Removed lint from around heating element. Reassembled incorrectly: drum can be turned manually only with effort. Turned motor on just to test, and drum did not budge. Just turning the motor on for a second produced the same burning smell as before. Afterwards, I saw the T720 service manual with instructions to use a "special tool" to fix the drum in place; also saw post in forums about reassemblin