Service as Required Bleed the Fuel System (Engines with Electronic Fuel Systems and Denso High Pressure Common Rail) (4045HF475, 6068HF475) CAUTION: High-pressure fluid remaining in fuel lines can cause serious injury. Do not disconnect or attempt repair of fuel lines, sensors, or any other components between the high-pressure fuel pump and nozzles on engines with High Pressure Common Rail (HPCR) fuel system. Only technicians familiar with this type of system can perform repairs. (See your John Deere dealer.) TS1343 –UN–18MAR92 High-Pressure Fuel Lines Escaping fluid under pressure can penetrate the skin causing serious injury.
Avoid hazards by relieving pressure before disconnecting hydraulic or other lines. Tighten all connections before applying pressure. Search for leaks with a piece of cardboard. Protect hands and body from high pressure fluids. X9811 –UN–23AUG88 If an accident occurs, see a doctor immediately. Any fluid injected into the skin must be surgically removed within a few hours or gangrene may result. Doctors unfamiliar with this type of injury may call the Deere & Company Medical Department in Moline, Illinois, or other knowledgeable medical source.
High Pressure Fluids Any time the fuel system has been opened up for service (lines disconnected or filters removed), it will be necessary to bleed air from the system. Continued on next page OURGP11,000013E –19–21NOV03–1/3 40-17 021604 PN=190