Dewalt DCMWP234U2 Instructional Manual - Type 1 - Page 23

12. Secure the blade assembly 47 in a vise 34 . Tighten the four blade nuts 51 clockwise with a 9/16" (14 mm) wrench 44 (not included). Torque the four blade nuts 51 to 13-20 ft-lbs. 13. In this order, install the blade assembly 47 and keyed spacer 45 onto the blade shaft 49 as shown in Fig. CC. NOTE: Align the keys 46 on the keyed spacer 45 with the key slots 60 on the blade shaft 49 as shown in Fig. CC. 14. Install the blade assembly bolt 43 and hand tighten. 15. Position the 2" x 4" wood 42 between the blade assembly 47 and outer lip of deck as shown in Fig. DD to keep the blades from turning. 16. Fully tighten the blade assembly bolt 43 using a 9/16" (14 mm) wrench 44 (not included). Torque the blade assembly bolt 43 to 37-50 ft-lbs. 17. Return the mower to its normal upright position. 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 blades. Ensure that safety key and battery packs are removed. Sharpening the blades 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 BLADES IMMEDIATELY. When Sharpening a Blade: • Make sure blade remains balanced. • Sharpen blades at the original cutting angle. • Sharpen cutting edges on both ends of blade, removing equal amounts of material from both ends. To Sharpen Blade in a Vise (Fig. EE) 1. Be sure the bail handle is released, the blades have stopped and safety key and battery packs are removed before removing the blades. 2. Remove blades from mower. See instructions for Removing and Installing Blades. 3. Secure blade 53 or 52 in a vise 34 . 4. Wear proper eye protection and gloves and be careful not to cut yourself. 5. Carefully file the cutting edges of the blade with a fine tooth file 54 (not included) or sharpening stone (not included), maintaining the angle of the original cutting edge. 6. Check balance of blade. See instructions for Blade Balancing. 7. Replace blades on mower and tighten securely. English Blade Balancing (Fig. FF) Check balance of each blade 53 or 52 by placing the keyed mounting hole 55 over a nail or round screwdriver 59 , clamped horizontally in a vise 34 . If either end of a blade rotates downward, file along the sharp edge of that dropping end. Blade is properly balanced when neither end drops. Cleaning (Fig. A)  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 use ANSI Z87.1 (CAN/CSA Z94.3) approved eye protection and NIOSH/OSHA/MSHA approved respiratory protection when performing this.  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. • Release bail handle 8 to turn mower off, let the blades come to a stop. • Remove the battery packs and safety key. • Clean out any clippings which may have accumulated on the underside of the deck. Do not spray with water or any other liquids. • After several uses, check all exposed fasteners for tightness. Corrosion (Fig. A) Fertilizers and other garden chemicals contain agents which greatly accelerate the corrosion of metals. If you mow in areas where fertilizers or chemicals have been used, the mower should be cleaned immediately afterward as follows: Release bail handle 8 to turn mower off and remove battery packs and safety key. Wipe all exposed parts with a damp cloth.  CAUTION: Do not pour or spray water on the mower in an attempt to clean it. Do not store the tool on or adjacent to fertilizers or chemicals. Such storage can cause rapid corrosion. Meets CPSC Safety Requirements DeWALT mowers conform to the safety standards of the American National Standards Institute, and the U.S. Consumer Product Safety Commission. The blades turn when the blade motor is running. Accessories  WARNING: Since accessories, other than those offered by DeWALT, have not been tested with this product, use of such accessories with this product could be hazardous. To reduce the risk of injury, only DeWALT recommended accessories should be used with this product. Recommended accessories for use with your product are available at extra cost from your local dealer or authorized service center. If you need assistance in locating any accessory, please contact DeWALT. Call 1‑800‑4‑DeWALT (1‑800‑433‑9258) or visit our website: www.dewalt.com. 21