If your unit is a multi-pulley system, you should find a small set-screw on both the drive pulley and the quill pulley. Most units of this type will have a chart within the head cover that shows the RPM rate for each corresponding set of pulleys. Conversely, using a smaller motor pulley and a larger drive pulley results in a slower RPM rate for the chuck. When you use a larger motor pulley with a smaller quill pulley, the drill chuck spins faster. In the case of the former, to adjust the speed at which you drill, you'll place the belt on different corresponding sets of pulleys. There are two predominant styles of drill presses: those with multiple pulleys fore and aft (for controlling the speed of the chuck), and those with a single pulley on the motor and quill shaft that employ a variable speed control. As with the belt, if a pulley is damaged, it is better to replace it than to continue to use a damaged part. Inspect the pulleys: Next, rotate the belt slightly on the pulleys and inspect each of the pulleys fore and aft for any damage or cracks.If the belt is worn or is displaying cracking or fraying, replace it with a new belt. Begin by visually inspecting the condition of the belt between the two pulleys. Harbor Freight 5 Speed Mini Drill Press Review and use Demonstration - Central Machinery SnapWhole Harbor Freight Reviews 6.18K subscribers Subscribe 20 Share Save 3.7K views 2 years ago. Check the belt: With the electrical cord unplugged, open the head cover on top of the drill press.As with the cord, if it is damaged, the switch should be replaced. There should be no excessive play within the switch, and it should consistently and easily turn the motor on and off.
Check the switch: While you're at it, check the condition of the switch on the front of the drill press.If any damage is present, consider having the cord replaced. Make sure that there are no cracks in the insulation of the cord, and check to see that it is solidly connected to both the plug on the end of the cord and into the motor housing on the back of the drill press.
0 kommentar(er)
