can be made with the same twist drills used for metal. These bits may overheat unless pulled out frequently to clear chips from the flutes. For larger holes, use spade bits, power auger bits, or hole saws. Work that is apt to splinter should be backed up with a block of wood.
HAMMERDRILL OPERATION
1.When drilling, use just enough force on the hammer to keep it from bouncing excessively or “rising” off the bit. Too much force will cause slower drilling speeds, overheating, and a lower drilling rate.
2.Drill straight, keeping the bit at a right angle to the work. Do not exert side pressure on the bit when drilling as this will cause clogging of the bit flutes and a slower drilling speed.
3.When drilling deep holes, if the hammer speed starts to drop off, pull the bit partially out of the hole with the tool still running to help clear debris from the hole.
4.For masonry, use
Chipping and Chiselling
1.To switch from hammer drilling to chiselling, first insert the SDS- plus® chisel and check if it is properly locked.
2.When switching from hammer drilling mode to chiselling mode, turn the chisel to the desired position. If you find resistance during mode change, turn the chisel slightly to engage the spindle lock.
Depth Rod (Fig. 4)
TO ADJUST THE DEPTH ROD
1.Push in and hold the depth rod release button (J) on the side handle.
2.Move the depth rod (D) so the distance between the end of the rod and the end of the bit equals the desired drilling depth.
3.Release the button to lock rod into position. When drilling with the depth rod, stop when end of rod reaches surface of material.
FIG. 4 | English |
| |
| J |
| D |
MAINTENANCE
Your DEWALT power tool has been designed to operate over a long period of time with a minimum of maintenance. Continuous satisfactory operation depends upon proper tool care and regular cleaning.
WARNING: To reduce the risk of injury, turn unit off and disconnect tool from power source before installing and removing accessories, before making any adjustments or removing/installing attachments or accessories.
Cleaning
WARNING: Blow dirt and dust out of all air vents with dry air at least once a week. Wear proper ANSI Z87.1 (CAN/CSA Z94.3) eye protection and proper NIOSH/OSHA/MSHA respiratory protection when performing this.
WARNING: Never use solvents or other harsh chemicals for cleaning the
9