User manual for DEWALT's heavy-duty cordless rotary hammer drills, covering safety, operation, battery care, and technical specs.
This manual provides safety guidelines, operating instructions, and technical specifications for DEWALT’s heavy-duty cordless rotary hammer drills, models DCH143, DCH243, DCH253, and DCH254. It includes details on voltage, no-load speed, impact rate, and vibration emissions. Safety precautions for electrical, mechanical, and battery use are emphasized. The manual also covers proper handling, maintenance, and accessory use to ensure safe and effective operation.
| Voltage | 14.4V, 18V |
|---|---|
| No-load Speed | 1100–1200 min-1 |
| Impact Rate | 4350–4500 min-1 |
| Impact Energy | 2.1 J |
| Chuck Type | SDS Plus® |
| Weight (without battery) | 2.4–2.6 kg |
| Vibration Emission (Drilling Concrete) | 6.6–7.4 m/s² |
| Sound Pressure Level | 86 dB(A) |
| Sound Power Level | 97 dB(A) |
The DCH143 model operates at 14.4V, while the DCH243 model operates at 18V.
The DCH254 model has an impact rate of 4500 min-1.
The vibration emission level for drilling into concrete is 6.6–7.4 m/s², depending on the model.