I have a 1977 Asplaudh Whisper wood chipper. It has a Ford 320 v8 motor It's a great running Machine. But I can'nt find any info on how to adjust the settings or change the blades. Removing the blades looks simple anuff it's the ajustments that I'm more concerned with. Once I put new blades on I'm sure it will need to be adjusted. Does anyone know where I can find some info on this.