Does anyone know what happens if a Viking sewing machine was idle for 5 years without maintenance? I have an opportunity to buy one from a friend who hasn’t touch her sewing machine for a long time. Since she had only used it a few times, she didn’t sent it in for maintenance. Is the sewing machine a past history now? Is it safe to buy the sewing machine without falling into the money pit? I’d appreciate for any input you can provide. Thanks!