DeWalt DH4240B Instruction Manual Page 1

DH4240BPressure WasherINSTRUCTION MANUALIf you have questions or comments, contact us.1-877-FNA-GAS1 (1-877-362-4271)•www.dewaltpw.com

10English WARNING: RISK FROM MOVING PARTSWHAT CAN HAPPEN HOW TO PREVENT IT • Movingpartssuchasthepulley, flywheel, and belt can cause serious

11English 5. Attach high-pressureEP hose (P) to spray gun. Make sure it is secure. 6. Connect wand (E) to spray gun. Make sure connection is

12English 9. The pressure washer is now ready for handling. Make sure to fol-lowtheOwner’sManualinstructionsbeforestartingthepressurewasher.

13EnglishWARNING:  attempt to change nozzles while pressure washer is running. Turn engine of

14EnglishNOTICE: NEVER pull water supply hose to move pres sure washer. This could damage hose and/or pump inlet. 

15EnglishNOTE: If the oil level in the engine is low, the engine will not start. If the engine does not start, check the oil level and add

16EnglishHOW TO CHANGE BBAACC PUMP OIL 1. Loosen pump dipstick/oil plug (BB). 2. Place a container under the oil drain plug (CC). 3. Remove

17Englishexpected. DeWALT winterizer (DP80) is availabe at the store where the pressure washer was purchased. If a pump protector/ wi

18EnglishLimited WarrantyThis pressure washer is warranted for three years from date of pur-chase. We will repair, without charge, any defects due to

19EnglishGlossaryBypass mode: Allows water to re-circulate within pump when the gun trigger is not pulled.Chemical hose: Feeds cleaning agents into th

2English A. Panel assembly B. Nozzle Grommets C. Professional Spray gun D. Wheel E. Quick-connect spray wand F. Frame G. Engine dipstick/oil

20EnglishTroubleshooting GuideThis section provides a list of the more frequently encountered malfunctions, their causes and corrective

21EnglishCODE POSSIBLE CAUSE POSSIBLE SOLUTION8 Fuel valve closed. Move the fuel valve lever to the OPEN position.9 Spray wand not in high pressure. S

22EnglishCODE POSSIBLE CAUSE POSSIBLE SOLUTION29 Oil seals worn. Have replaced by authorized service center30 Loose drain plug. Tighten.31 Worn drain

3EnglishDenitions: Safety Guidelines The definitions below describe the level of severity for each signal word. Please read the manual and pa

4EnglishWARNING: Do not operate this unit until you read this instruction manual and the engine instruction manual for safety, operation and maintenan

5English • Materialsplacedagainstornear the pressure washer can in ter fere with its proper ventilation fea tures caus ing overheating and possi

6English • Donotallowhosetocontactmuf fler. • Neverattachorremovewand or hose fittings while sys tem is pres sur ized. • Whenusingre

7EnglishDANGER: RISK OF INJURY FROM SPRAYWHAT CAN HAPPEN HOW TO PREVENT IT • Highvelocityfluidspraycan cause objects to break, propelling partic

8English • Ifproperstartingprocedureis not followed, engine can kickback causing serious hand and arm injury. • Ifenginedoesnotstartafter

9EnglishWARNING: RISK OF BURSTINGWHAT CAN HAPPEN HOW TO PREVENT IT • Over inflation of tires could result in serious injury and property damage.  •