Related Manuals for DeWalt DH4240B
Summary of Contents for DeWalt DH4240B
- Page 1 If you have questions or comments, contact us. 1-877-FNA-GAS1 (1-877-362-4271)•www.dewaltpw.com InstructIon ManuaL DH4240B Pressure Washer...
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Page 2: Pump Specifications
FIG. 1 DH4240B Pressure WasHer Panel assembly Starter grip Nozzle Grommets Engine Professional Spray gun K. Throttle control lever Wheel L. Choke control Quick-connect Fuel valve lever spray wand Gas cap Frame Handle assembly Engine dipstick/oil plug High-pressure hose Engine switch... -
Page 3: Specifications
Specifications MoDeL WeIGHt HeIGHt WIDtH LenGtH MaX* aVeraGe GPM MaX* aVeraGe enGIne oPeratInG oPeratInG DH4240B 145 lbs 25.5" 28" 45" 4200 4100 HONDA (15.4 L/min) (14.7L/min) (29,958 kPa) (28,269 kPa) 389 cc OHV * Maximum PSI and GPM ratings determined in accordance with the Pressure Washers Manufacturers Association (PWMA) - Page 4 For est Service land and may also be legally required under other WARNING: Do not operate this unit until you read this instruction manual and the engine instruction manual for safety, operation and statutes and or di nanc es. maintenance instructions. WARNING: This product and its exhaust contain chemicals known to the State of California to cause cancer, and birth WARNING: When using this product basic precautions should...
- Page 5 • Materials placed against or • Never operate pressure near the pressure washer wash er in an area can in ter fere with its proper containing dry brush or DANGER: RISk TO BREAThING (ASPhYxIATION) ventilation fea tures caus ing weeds. WHat can HaPPen HoW to PreVent It overheating and possible...
- Page 6 • Do not allow hose to contact muf fler. • Never attach or remove DANGER: RISk Of fLUID INjECTION AND LACERATION wand or hose fittings while WHat can HaPPen HoW to PreVent It sys tem is pres sur ized. • Your pressure washer •...
- Page 7 DANGER: RISk Of UNSAfE OPERATION DANGER: RISk Of INjURY fROM SPRAY WHat can HaPPen HoW to PreVent It WHat can HaPPen HoW to PreVent It • Unsafe operation of your • Do not use chlorine • Highvelocity fluid spray • Always wear ANSIapproved pressure wash er could lead bleach or any other can cause objects to break,...
- Page 8 • If proper starting procedure • If engine does not start after two pulls, squeeze trigger is not followed, engine can kickback causing serious of gun to relieve pump DANGER: RISk Of INjURY OR PROP ER TY DAMAGE hand and arm injury. pressure.
- Page 9 • Highvelocity fluid spray • On pressure washers rated directed at pneumatic tire above 1600 psi (11032 kPa) sidewalls (such as found use the widest fan spray WARNING: RISk Of BURSTING on automobiles, trailers and (40º nozzle) and keep the the like) could damage the spray a minimum of 8"...
- Page 10 WARNING: RISk Of ELEC TRI CAL ShOCk WARNING: RISk fROM MOVING PARTS WHat can HaPPen HoW to PreVent It WHat can HaPPen HoW to PreVent It • Spray directed at electri • Unplug any electrically • Moving parts such as the •...
- Page 11 tools required (not included): 5. Attach high-pressure hose (P) to spray gun. 1/2" (13 mm) open-end wrench Make sure 1/2" (13 mm) socket or 1/2" (13 mm) wrench secure. Hardware (Included with your machine): 6. Connect wand (E) to 1 Handle (F) spray gun.
- Page 12 9. The pressure washer is now ready for handling. Make sure to fol- 15˚ intense metal, concrete low the Owner’s Manual instructions before starting the pressure cleaning of or wood Yellow washer. small areas oPeration Pressure Adjustments ˚ intense metal, concrete cleaning of or wood The pressure setting is preset at the factory to achieve op ti mum...
- Page 13 WARNING: Flying objects could cause risk of serious injury. DO 4. After use of chemicals, place chemical hose into container of clean NOT attempt to change nozzles while pressure washer is running. water and draw clean water through chemical injection system to rinse system thoroughly.
- Page 14 NOTICE: NEVER pull water supply hose to move pres sure washer. WARNING: To reduce the possibility of contamination always pro- tect against backflow when connected to a potable water system. This could damage hose and/or pump inlet. • DO NOT use hot water, use cold water only. 6.
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Page 15: Shutting Down
note: If the oil level in the engine is low, the engine will not start. 4. Turn water source off. If the engine does not start, check the oil level and add oil as 5. Pull trigger on spray gun to relieve any water pressure in hose or needed. - Page 16 HoW to cHanGe 7. Reconnect spray wand to gun then turn on water supply. PuMP oIL 8. Start pressure washer and place spray wand into high pressure 1. Loosen pump dipstick/oil setting to test. plug (BB). To Clean the Water Inlet Filter 2.
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Page 17: Service Information
expected. D WALT winterizer (DP80) is availabe at the store 3. Store chemical hose so it is protected from dam age. CAUTION: Risk of personal injury. Avoid placing hands between where the pressure washer was purchased. If a pump protector/ winterizer is not available, RV antifreeze can be used as outlined in handle and frame when assembling to prevent pinching. -
Page 18: Limited Warranty
Limited Warranty This pressure washer is warranted for three years from date of pur- chase. We will repair, without charge, any defects due to faulty mate- rials or workmanship. This warranty does not cover parts that are damaged through misuse or abuse, or parts which must be replaced from time to time due to normal pressure washer operation. - Page 19 Glossary Bypass mode: Allows water to re-circulate within pump when the gun trigger is not pulled. chemical hose: Feeds cleaning agents into the pump to mix with the water. Refer to chemicals and cleaning solvents. chemical injection system: Mixes cleaners or cleaning solvents with water to improve cleaning effectiveness. choke control: Opens and closes carburetor choke valve.
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Page 20: Troubleshooting Guide
Troubleshooting Guide This section provides a list of the more frequently encountered malfunctions, their causes and corrective actions. The operator or maintenance personnel can perform some corrective actions, and others may require the assistance of a qualified FNA techni- cian or your dealer. Problem code Engine will not start ......................1, 2, 3, 4, 5, 6, 7, 8, 36... - Page 21 (Troubleshooting Codes cont.) coDe PossIBLe cause PossIBLe soLutIon Fuel valve closed. Move the fuel valve lever to the OPEN position. See spray Wand nozzles under Operation. Spray wand not in high pressure. Low water supply. Water supply must be at least 5 GPM @ 20 psi (138 kPa). Leak at high-pressure hose fitting.
- Page 22 (Troubleshooting Codes cont.) coDe PossIBLe cause PossIBLe soLutIon Oil seals worn. Have replaced by authorized service center Loose drain plug. Tighten. Worn drain plug o-ring Check and replace. Worn fill plug o-ring. Check and replace. Pump overfilled. Check for correct amount. Incorrect oil used.