Dewalt D25911K Instruction Manual - Page 10

English LED Function Yellow (permanently on) Yellow (flashing) Description Service required The yellow service indicator LED 9 lights up to indicate the tool needs servicing within the next 10 hours of use (new lubrication and hammer mechanism sealing). Service exceeded With the service indicator lit, after a further 10 hours of use the service indicator flashes to indicate the tool has exceeded the required service interval. DeWALT Tool Tag Ready (Fig. F) Optional Accessory Your hammer comes with Tool Tag mounting holes 8 and fasteners 11 or installing a DeWALT Tool Tag. You will need a T15 bit tip to install the tag.  WARNING: Use only original fasteners. Longer screws increase the risk of electrical shock or damage to the tool. The DeWALT Tool Tag is designed for tracking and locating professional power tools, equipment, and machines using the DeWALT Tool Connect™ app. For proper installation of the DeWALT Tool Tag refer to the DeWALT Tool Tag manual. Dust Extraction System (Fig. G) The use of a dust extraction system (DWH053 not included) is recommended to reduce potentially harmful airborne dust and to prolong tool and accessory life. Consult your dealer for further information on suitable dust extraction systems. OPERATION  WARNING: To reduce the risk of serious personal injury, turn unit off and disconnect it from power source before making any adjustments or removing/installing attachments or accessories. An accidental start‑up can cause injury.  WARNING: Always observe the safety instructions and applicable regulations.  WARNING: Be aware of the location of pipework and wiring.  WARNING: Apply a pressure of approx. 44-66 lbs. (20-30 kg) to the tool. Excessive force does not speed up chiseling but decreases tool performance and may shorten tool life. Proper Hand Position (Fig. E1, E2)  WARNING: To reduce the risk of serious personal injury, ALWAYS use proper hand position as shown.  WARNING: To reduce the risk of serious personal injury, ALWAYS hold securely in anticipation of a sudden reaction. IMPORTANT: The tool must be held with two hands at all times when in use. Horizontal Applications (Fig. E1) Proper hand position requires one hand on the bail/ loop style auxiliary handle 5 with the other hand on the main handle 2 . Vertical Applications (Fig. E2) Proper hand position requires both hands on the main handle 2 . Demolition, Chipping and Channeling (Fig. A)  WARNING: Ensure that the cutting edge does not show discoloration caused by too much pressure. This may impair the hardness of the accessory. Various types of chisels are available as an option. 1. Select the appropriate chisel. Clean and grease its shank. 2. Insert the chisel and check whether it is properly locked. 3. Set the desired impact energy level. 4. Fit and adjust the bail/loop style auxiliary handle 5 and make sure it is firmly tightened. 5. Hold the tool with both the main handle and the bail/ loop style auxiliary handle and switch on. The tool now runs in continuous operation. 6. Always switch off the tool when work is finished and before unplugging. MAINTENANCE  WARNING: To reduce the risk of serious personal injury, turn unit off and disconnect it from power source before making any adjustments or removing/installing attachments or accessories. An accidental start‑up can cause injury. 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. Cleaning  WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week. To minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when performing this procedure.  WARNING: Never use solvents or other harsh chemicals for cleaning the non‑metallic parts of the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any part of the tool into a liquid. 8