User Manual Q&AAnswer
Mar 03, 2025 - 11:26 PM
To change the speed and mode on the DEWALT DWD520 Heavy-Duty Dual Speed Hammer Drill, follow these steps:
1. Locate the speed/mode selector collar (D) on the tool. It is located near the chuck.
2. To change the speed, turn the collar to the drill bit symbol for drilling position 1 (low speed) or to the drill bit symbol for drilling position 2 (high speed).
3. To switch between drilling mode and hammerdrilling mode, turn the collar to the applicable symbol. The drill bit symbol represents drilling mode, and the hammer symbol represents hammerdrilling mode.
Note: The gear train is designed to shift only when the tool is off. If necessary, rotate the chuck slightly by hand to align the gears while turning the collar.
Make sure to refer to the instruction manual for additional safety guidelines and proper usage of the DEWALT DWD520 Heavy-Duty Dual Speed Hammer Drill.
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