No. 830 Grinder-Hone Operating Instructions

Operating instructions and parts list for the DeWalt No. 830 Grinder-Hone, a dual-purpose bench sharpening machine that combines grinding and honing in one unit. The machine requires a 1/4 or 1/3 HP motor running at 1725 RPM with a 3½" pulley, which delivers 3000 RPM grinding wheel speed and 110 RPM oilstone speed. The manual covers mounting on bench or stand, motor and grinder alignment, and lubrication using S.A.E. 90 transmission oil. Sharpening follows a three-stage workflow: initial shaping on the grinding wheel, coarse grinding on the oilstone's coarse side, and final finishing on the fine side. You'll find practical guidance on wheel dressing, thermal management to prevent overheating damage, and proper honing technique with sandwich-type oilstones available in 120 and 320 grit grades. Optional finishing attachments for buffing, sanding, and polishing are available with a compatible adapter. Tool rest positioning is critical—the manual specifies 1/16" clearance between rest and wheel for safe operation. The safety section emphasizes proper guard installation and use, eye protection with goggles, pre-use wheel crack detection, and strict warnings against operating damaged wheels. This manual provides complete setup, maintenance, and troubleshooting information for reliable long-term performance.