I'll start by letting you know my stove has less than one ton of pellets through it since new. Two weeks ago the auger motor, Merkle Korff (MK), started making a rumbling sound with each cycle so I shot some white lithium grease into each end of the motor while it was running and the noise immediately went away. During the next stove cleaning I removed and inspected the bushing but found no wear so I used some high temp grease on it and put it back together. All was quiet up until yesterday when it started it's rumbling again.
I bought a 1RPM GA (Gleason Avery) motor a few months back to eventually replace the 2RPM stirrer motor and try to cut down on some of the fly ash so in it went. Now I swapped out the frame/bushing from the stirrer to the auger and all is quiet again. As soon as the season is over I'm pulling the MK and using another GA motor for the auger. I can't believe how much quieter (almost silent) and smoother the GA motors are and for a bunch less money. Ball bearings make all the difference. Looks like I'll be keeping the MKs only as spares from now on.
Also, slowing the stirrer down has almost eliminated the fly ash and still keeps the burn pot clean.
I bought a 1RPM GA (Gleason Avery) motor a few months back to eventually replace the 2RPM stirrer motor and try to cut down on some of the fly ash so in it went. Now I swapped out the frame/bushing from the stirrer to the auger and all is quiet again. As soon as the season is over I'm pulling the MK and using another GA motor for the auger. I can't believe how much quieter (almost silent) and smoother the GA motors are and for a bunch less money. Ball bearings make all the difference. Looks like I'll be keeping the MKs only as spares from now on.
Also, slowing the stirrer down has almost eliminated the fly ash and still keeps the burn pot clean.
