Bleeding the Fuel System (Dual Filter System)

causym CAUTION: Escaping diesel fuel under pressure can have sufficient force to penetrate the skin, causing serious injury. Before disconnecting lines, be sure to relieve pressure. Before applying pressure to the system, be sure ALL connections are tight and lines, pipes and hoses are not damaged. Keep hands and body away from pinholes and nozzles which eject pressurized fluid. Use a piece of cardboard or wood, rather than hands, to search for suspected leaks.

If ANY fluid is injected into the skin, it must be surgically removed within a few hours by a doctor familiar with this type of injury 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.

1. Turn on electric priming pump and loosen the fuel outlet (A) of the transfer pump until a steady flow of fuel (without bubbles) flows out of connection. If electric priming pump is not used then unlock and operate hand primer (B) until a steady flow of fuel (without bubbles) flows out of connection. This could take 270 - 330 strokes until steady fuel flow is free of air bubbles. Retighten fuel line to specification.

Specification

Fuel Outlet Line -Torque 24 N·m (18 lb-ft)

2. Loosen the high-pressure fuel supply line (C) and operate pump until a steady flow of fuel (without bubbles) flows out. When using the electric priming pump, the hand pump will need to be used to assist. Tighten the high-pressure fuel supply line to specification. Repeat this step for high-pressure fuel supply line (D).

X9811
RG13319


A-Fuel Transfer Pump Outlet
B-Hand Primer
C-High Pressure Fuel Supply Line
D-High Pressure Fuel Supply Line
E-Fuel Line Fitting on Fuel Rail Flow Limiter #6

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Specification

High Pressure Fuel Supply Line -Torque 24 N·m (18 lb-ft)

3. Loosen fuel line fitting on fuel rail flow limiter #6 (D). Place rag around fitting to absorb fuel. Operate pump until steady flow of fuel escapes the flow limiter. Tighten fuel line to specification.

Specification

Pressure Limiter -Torque 24 N·m (18 lb-ft)

4. Operate electric pump for an extra 10 seconds or pump hand primer approximately 30 more times. Lock hand primer (B) (pull up, then push down and lock).

5. Remove electric pump, drain lines back into tank. Remove RE193349 hose fitting and install plug into filter header.

6. Crank engine up to 15 seconds. If engine does not start, wait 15 seconds and then crank for an additional 15 seconds. If engine starts, run at 1200-1500 RPM for 3-5 minutes.

7. If the engine does not start, loosen fuel line fitting on fuel rail flow limiter #6 (D). Place rag around fitting to absorb fuel. Pump hand primer (B) until steady flow of fuel escapes the flow limiter. Tighten fuel lines to specification below and lock hand primer (pull up, then push down and lock).

8. Start engine and check for leaks.

Specification

Specification High Pressure Fuel Lines -Torque 24 N·m  (18 lb-ft)

9. Wash out engine compartment.

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