Voumard Type 3 Internal Grinder Operation & Maintenance Manual VOUMARD Type 3 (3ACH,3APCH, 3-32 and 3A, etc.) Internal Grinding Machines:Highly Detailed Operator's Instruction and Maintenance Manual with Sectional Drawings and large Hydraulic and Electrical Schematics. Manufacturers: Voumard Models: 3-32 3A 3ACH 3APCH 3 Contents: Operators Manual Maintenance Manual Technical Drawings