HELP Please
I've just bought a new KA 65.
It arrived, upon use, had a horrible grinding sound when the glue plunger was in action. I thought this very non-Festool and queried it with technical. I was told the odd clicking sound was normal, I played him a video and he said that it was normal. I carried on using (two lengths of 18mm) the KA65 then it stopped pushing glue through onto the roller. No glue, no banding. I sent the machine back for repair (new motor mechanism apparently), it arrived back this morning and sounded smooth. Until, I used it on a long length (2100mm) where it stopped pushing glue through again. I've sent it back, again.
My question - is this a common fault? Should I bother persevering?
If this is a common ongoing fault, i'm sending it back permanently.
All thoughts appreciated.