If there is really an alignment problem (and it sounds like there is), you should get it fixed. Finding somebody who knows what they are doing may be a challenge, but it is important.
An incorrect programming of the Balmar regulator could possibly also put undue stress on the belt.
Formerly: 2005 Airstream Interstate (Sprinter 2500 T1N)
Now!: 2014 Great West Vans Legend SE (Sprinter 3500 NCV3 I4)