Dewalt DCMWSP244U2 Instruction Manual - Page 17

• If mower should start to vibrate abnormally, release bail handle to turn mower off, remove the safety key and battery packs. Check immediately for cause. Vibration is a warning of trouble. Do not operate mower until a service check has been made. • For best cutting results, keep blade sharpened and balanced. • Inspect and thoroughly clean mower after each use as a deck with caked grass will degrade performance. • Always release bail handle to turn mower off, remove safety key and battery packs when leaving it unattended even for a short period of time. The following suggestions will help you to obtain optimum run time from your cordless mower: • Slow down in areas where the grass is especially long or thick. • Avoid mowing when the grass is wet from rain or dew‑soaked. • Cut your lawn frequently, especially during high growth periods. NOTE: It is recommended that your battery packs be recharged after use to prolong the battery pack life. Frequent charging will not harm your battery pack, and will ensure that the battery pack is fully charged and ready for its next use. Storing battery pack not fully charged will shorten its life. Storage (Fig. A)  DANGER: Rotating blade can cause serious injury. Release bail handle to turn mower off, remove safety key, and remove battery packs before lifting, transporting, or storing the mower. Store in a dry place.  CAUTION: Pinch point. To avoid being pinched, keep fingers away from area around handle brackets when folding down handles. The handle of the mower can be easily folded down for quick and convenient storage. 1. On the lower handle, twist the handle lock knobs 7 a quarter turn. 2. Rotate the handle towards the front of the mower. Take care to not pinch or stress the cord. 3. Twist the handle lock knobs 7 a quarter turn to lock the handle into storage position. 4. The mower can be stored standing up, with the collection bag removed, or flat on its wheels. MAINTENANCE  DANGER: To reduce the risk of serious personal injury, turn unit off and remove the safety key and battery packs before making any adjustments or removing/installing attachments or accessories. An accidental start‑up can cause injury. English Removing and Installing Blade (Fig. N, O)  DANGER: RISK OF INJURY. WHEN REASSEMBLING THE BLADE SYSTEM, ENSURE EACH PART IS REINSTALLED CORRECTLY, AS DESCRIBED BELOW. IMPROPER ASSEMBLY OF THE BLADE OR OTHER PARTS OF THE BLADE SYSTEM MAY CAUSE SERIOUS INJURY.  DANGER: To reduce the risk of serious personal injury, turn unit off, remove safety key and battery packs before making any adjustments or removing/installing attachments or accessories. An accidental start‑up can cause injury. Replacement blades are available from your nearest authorized service center. This mower requires replacement blade DWO1DT233. 1. Cut a piece of 2" x 4" wood 30 (about 2 feet long) (610 mm) to keep blade from turning when removing the blade bolt 26 .  WARNING: Use gloves and proper eye protection. Turn the mower on its side. Be careful of sharp edges of blade. 2. Position wood and unscrew the blade bolt 26 counterclockwise with a 5/8" wrench 27 (not included) as shown in Fig. O. 3. Remove blade bolt 26 , spring plate 28 and blade 29 as shown in Fig. N. Examine all pieces for damage and replace if necessary. 4. Install sharpened or new blade on shoulder of the blade adapter 34 as shown in Fig. N. Blade has a winged cut out which must match and engage the same shaped projection on the blade adapter. NOTE: When replacing sharpened or new blade on shoulder of blade adapter 34 , make sure the bottom of the blade as marked BOTTOM will be facing the ground when the mower is returned to its normal upright position. 5. Install the spring plate 28 on the blade. Be sure to align the bosses on the spring plate with the detents in the blade, rotating the blade and spring plate together as necessary. 6. Position piece of wood to keep blade from turning as shown in Fig. O. Install blade bolt 26 and securely tighten the blade 29 with a 5/8" wrench 27 . Blade Sharpening KEEP BLADE SHARP FOR BEST MOWER PERFORMANCE. A DULL BLADE DOES NOT CUT GRASS CLEANLY.  WARNING: Use gloves and proper eye protection while removing, sharpening, and installing blade. Ensure that safety key and battery pack are removed. Sharpening the blade twice during a mowing season is usually sufficient under normal circumstances. Sand causes the blade to dull quickly. If your lawn has sandy soil, more frequent sharpening may be required. REPLACE BENT OR DAMAGED BLADE IMMEDIATELY. When Sharpening the Blade: • Make sure blade remains balanced. • Sharpen blade at the original cutting angle. 15