Dewalt DH4240B Instruction Manual - Page 20

English 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 technician or your dealer. Problem Code Engine will not start ...1, 2, 3, 4, 5, 6, 7, 8, 36 (refer to the engine's instruction manual for further engine troubleshooting) No or low pressure (initial use 9, 10, 11, 12, 13, 14, 15, 16 Will not draw chemicals 16, 17, 18, 19, 20, 21 No or low pressure (after period of normal use 22, 23, 24 Water leaking at gun/spray wand connection 25, 26 Water leaking at pump 25, 26, 27, 28 Oil leaking at pump...29, 30, 31, 32, 33, 34, 35 Pump Pulsates...12 Troubleshooting Codes Code 1 2 3 4 5 6 7 possible cause POSSIBLE SOLUTION No fuel. Add fuel. Low oil. Add required amount of oil. Pressure builds up after two pulls on the recoil starter or after initial Squeeze gun trigger to relieve pres­sure. use. Choke lever in the No Choke position. Move choke to the Choke po­sit­ion. Spark plug wire not attached. Engine ON/OFF switch in OFF pos­ i­tion. Choke lever in the Choke position on a hot engine or an engine that has been exposed to thermal heat for a long period of time. Attach spark plug wire. Place engine ON/OFF switch in on position. Move choke to the No Choke po­si­tion. 20