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Lionel 6-11104 Intermittent Fan Smoke

Need some help on this Legacy Big Boy 6-11104; trying to fix intermittent chuff and fan smoke; opened it up; took out chuff switch and adjusted the lever down; installed again and have 4 chuffs/revolution from the tender.  Did not do this before; however the fan pulses one time/revolution; the 4 chuffs/revolution  are good but fan motor pulses only once.  Replaced the fan motor; replaced element from 6 to 8 ohms; swapped R4LC to a new R4LC S03; no help.  Thinking I have to replace the chuff switch; the good serial data to tender is and not to smoke unit to match is the curve I did not expect; wonder if I need a serial buffer to the smoke unit; will try to the new chuff switch (PITA to install!)  Any input from the wizards here is appreciated; Falcon70

 

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OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

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