Dewalt DXPW3400PR Instruction Manual - Page 18

English NOTE: When operating the pressure washer in the PRESSUREREADY® system mode the engine ON/OFF switch MUST be in the OFF position to stop the engine. When spray gun trigger is released, the water flow will stop immediately and the engine should shut off in approximately 10 seconds. When the spray gun trigger is squeezed again, the engine will restart and the water flow will begin again. 3. Place the fuel valve lever in the OFF position. Fig. BB 4. PRESSUREREADY® system mode only: Remove the battery pack and store properly. - To remove battery pack (Fig. P): Depress the battery release button 24 on the battery and pull battery pack out from the battery housing.  WARNING: Risk of Damage. DO NOT store battery pack in pressure washer when not in use. Remove battery pack after every use. 5. Turn cold water source off. 6. Pull spray gun trigger to relieve any water pressure in hose or spray gun. 7. Refer to Storage for proper storage procedures. MAINTENANCE  WARNING: Risk of burning. When performing maintenance, you may be exposed to hot surfaces, water pressure or moving parts that can cause serious injury or death.  WARNING: Risk of fire. Always disconnect, spark plug wire, let the engine cool and release all water pressure before performing any maintenance or repair. The engine contains flammable fuel. Do not smoke or work near open flames while performing maintenance. To ensure efficient operation and longer life of your pressure washer, a routine maintenance schedule should be prepared and followed. If the pressure washer is used in unusual conditions, such as high temperatures or dusty conditions, more frequent maintenance checks will be required. Engine Consult the engine instruction manual for the manufacturer's recommendations for any and all maintenance. NOTE: The pressure washer frame is equipped with an oil drain hole to help make changing the engine oil easier. Pump The pump was filled with oil at the factory. The pump on this unit is maintenance free and requires no oil. If there is a problem with the pump contact us at 1-877-362-4271 or reference the Troubleshooting Guide. Nozzle Cleaning (Fig. CC, DD) If the nozzle becomes clogged with foreign materials, such as dirt, excessive pressure may develop. If the nozzle becomes partially clogged or restricted, the pump pressure will pulsate and when operating in PRESSUREREADY® system mode the engine may shut off due to the low water flow. Clean the nozzle immediately using the nozzle kit supplied and the following instructions: 1. Shut down the pressure washer. See Shutting Down for the correct procedure. 2. Disconnect the spray wand from the spray gun. 3. Remove the high pressure nozzle from the spray wand. Remove any obstructions with the nozzle cleaning tool 29 provided and back flush with clean water. Fig. CC 29 4. Direct water supply into spray nozzle to back flush loosened particles for 30 seconds. Fig. DD 5. Reconnect the nozzle to the spray wand. 6. Reconnect spray wand to gun then turn on water supply. 7. Start pressure washer and place spray wand into high pressure setting to test. See Starting for the correct procedure. To Clean the Water Inlet Filter (Fig. EE) This filter screen 14 should be checked periodically and cleaned if necessary. 1. Shut down the pressure washer. See Shutting Down for the correct procedure. 2. Remove the filter screen 14 by grasping the end and removing it from water inlet of pump. 3. Clean filter by flushing it with water on both sides. 4. Reinsert filter into water inlet of pump. If the filter is not flat, convex side should face out. NOTE: Do not operate pressure washer without filter properly installed. 16