How do I assemble the Alpha+ highchair? For a successful assembly of the hauck Alpha+ grow-along highchair, we recommend watching our video: Related articles Where do I find the instruction manual for my hauck product? Where can I order a new harness or safety belt? My new wooden highchair is wobbling. Did I assemble it incorrectly? How do I order a spare part? How can I use the Alpha+ highchair right from birth?