Greetings.
My MTD is the 33inch, 13HP. It is nearly 15 years old and I have not had any problems with the chains. It has been a very reliable machine and over the years it has moved incredible amounts of snow. It's had the belts and drive tire changed a couple times. The only real problem I've eve had developed just a year ago. After sitting in the garage for 9 month it would refuse to move. If I grabbed the handlebars and gave it a tug it would take off and then move fine after that. I took it apart and could not find anything wrong with it. As a pre-emptive measure I replaced the drive tire again and tore apart and re-lubed the differential housing. So far it has been moving fine. Since getting the 2720 and 54" blower the MTD has been assigned to "backup" duties.
My MTD is the 33inch, 13HP. It is nearly 15 years old and I have not had any problems with the chains. It has been a very reliable machine and over the years it has moved incredible amounts of snow. It's had the belts and drive tire changed a couple times. The only real problem I've eve had developed just a year ago. After sitting in the garage for 9 month it would refuse to move. If I grabbed the handlebars and gave it a tug it would take off and then move fine after that. I took it apart and could not find anything wrong with it. As a pre-emptive measure I replaced the drive tire again and tore apart and re-lubed the differential housing. So far it has been moving fine. Since getting the 2720 and 54" blower the MTD has been assigned to "backup" duties.