Drilling in Masonry
(TOOLS WITHOUT A HAMMER FEATURE)
Use carbide tipped bits rated for percussion drilling and be certain that the bit is sharp. Use a constant and firm force on the tool to drill most effectively. A smooth, even flow of dust indicates the proper drilling rate.
Operation as a Hammerdrill
Some models have the Hammerdrill feature. To utilize the hammer feature of your tool, rotate the collar to align the hammer symbol with the arrow shown in Figure 3. The hammering position is for hammer drilling in soft concrete and masonry such as brick, mortar and soft ceramics.
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 clog- ging 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.Do not pour water into the hole to settle dust. Water causes clog- ging of bit flutes which will tend to make the bit bind in the hole.
Operation as a Screwdriver
Select the desired speed/torque range using the 3 speed gear shift lever on the top of tool to match the speed and torque to the planned operation. Insert the desired fastener accessory into the chuck as you would any drill bit. Set the torque adjustment collar (Fig. 3). Make a few practice runs in scrap or unseen areas to determine the proper position of the clutch collar.
MAINTENANCE
Cleaning
CAUTION: With the motor running, blow dirt and dust out of all air vents with dry air at least once a week. Wear safety glasses when per- forming this. Exterior plastic parts may be cleaned with a damp cloth and mild detergent. Although these parts are highly solvent resistant, NEVER use solvents.
CHARGER CLEANING INSTRUCTIONS
WARNING: Disconnect the charger from the AC outlet before cleaning. Dirt and grease may be removed from the exterior of the charger using a cloth or soft
Repairs
To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush inspection and replacement) should be performed by certified service centers or other qualified service organizations, always using identical replacement parts.
Accessories
Recommended accessories for use with your tool are available at extra cost from your local service center.
CAUTION: The use of any
If you need any assistance in locating any accessory, please contact DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 or call
MAXIMUM RECOMMENDED CAPACITIES
| Speed 1 | Speed 2 | Speed 3 |
BITS, METAL DRILLING | 1/2" | 1/4" | 1/4" |
WOOD, FLAT BORING | 1 1/2" | 5/8" | 5/8" |
BITS, MASONRY DRILLING | - | 1/4” | 1/4" |
English
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