{"id":2120,"date":"2013-04-07T11:03:59","date_gmt":"2013-04-07T15:03:59","guid":{"rendered":"http:\/\/192.168.50.23\/wordpress\/blog\/?p=2120"},"modified":"2018-04-07T17:09:28","modified_gmt":"2018-04-07T21:09:28","slug":"next-project-hilti-5-angle-grinder","status":"publish","type":"post","link":"https:\/\/forths.com\/index.php\/2013\/04\/07\/next-project-hilti-5-angle-grinder\/","title":{"rendered":"Next Project: Hilti 5″ Angle Grinder"},"content":{"rendered":"

Today the snow fell again as winter refused to leave. \u00a0The slushy snow was mixed with rain, so it would be another day indoors. \u00a0A year ago, Ryan gave me a dead power tool, thinking it might make for a good repair project. \u00a0Given the icy weather, I fetched the dead tool from the garage and began the autopsy.<\/p>\n

The tool is a German-made\u00a0Hilti DEG 500-D Angle Grinder. \u00a0This tool retails for $200 on Home Depot’s web page, so it’s a better quality tool than I’d normally buy for myself. \u00a0I plugged it in, pulled the trigger – and nothing happened. \u00a0The grinder came apart quickly, held together with those 6-point Torx-head screws. \u00a0My small wrenches were at the other house, so I had to defer the removal of the roller bearings for another week.<\/p>\n

I found a parts manual on-line for the tool, which is helpful. \u00a0The tool’s trigger switch tests ok, and the motor’s armature tests good too. \u00a0The motor has a pair of brushes, one of which is highly worn. \u00a0Brushes are cheap, so I can replace those. \u00a0I haven’t inspected bearings yet, but those tend to be inexpensive, too. \u00a0The bevel gears are in good condition and should only require cleaning and lubrication.<\/p>\n

I won’t spend a lot of money fixing this old tool, so I challenged myself to diagnose the problem and fix the tool for less than $40 in parts. It’ll be a fun little indoor project in case winter decides to stay a while longer.<\/p>\n