You are now able to download a PDF for each product with an exploded view drawing of the product, as well as a spare part list to aid you purchasing what is needed for the repair. In addition to the part lists and drawings, your Heidolph customer service representative is happy to assist you with any questions you may have regarding a spare part on a Heidolph product. Our goal is to make your life and research easier when you choose Heidolph Instruments.