Replacing Fuel Filter Elements

X9811-UN-23AUG88

High-Pressure Fluids

Engines are equipped with dual fuel filters: a primary filter (D) with water bowl, and a final filter (B). Both filters are replaced at the same 500-hour interval or every 12 months.

CAUTION: Escaping fluid under pressure can penetrate the skin causing serious injury. Relieve pressure before disconnecting fuel or other lines. Tighten all connections before applying pressure. Keep hands and body away from pinholes and nozzles which eject fluids under high pressure. Use a piece of cardboard or paper to search for leaks. Do not use your hand.

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

IMPORTANT: Replace fuel filter elements anytime audible alarm sounds and trouble codes indicate plugged fuel filters (low fuel pressure). If no alarm sounds during the 12 month service interval, replace elements at that time, or after 500 hours operation, whichever comes first.

CD31150A-UN-24MAR10

Replace primary fuel filter

A - Water-in-Fuel sensor connector

B - Canister

C - Primary fuel filter element

D - O-ring

E - Drain valve

NOTE: Both the primary and the final fuel filter elements must be replaced at the same time.

Remove primary fuel filter element

NOTE: For applications other than OEM, refer to operator's manual for proper servicing, hourly replacement intervals, and filter locations.

1. Thoroughly clean filter header and surrounding area to prevent dirt and debris from entering fuel system.

2. Connect a hose to filter drain valve (E) on bottom of filter and drain all fuel from filter canister.

3. Disconnect water-in-fuel sensor connector (A).

4. Remove fuel filter canister (B).

5. Pull filter element (C) down.

Install primary fuel filter element

1. Place new O-ring (D) on filter canister.

2. Apply a thin film of fuel on O-ring.

3. Place filter element in canister with tangs on bottom going into canister.

4. Screw canister into filter header then tighten to specification.

   Item	Measurement	Specification
   Primary fuel filter canister-to-Filter header	Torque	14 N·m (10 lb.-ft.)

5. Reconnect water-in-fuel sensor connector.

Remove final fuel filter element

CD31151-UN-23MAR10

Replace final fuel filter element

A - Final fuel filter element

B - Fuel filter packing

C - Drain valve

D - Final fuel filter header

NOTE: For applications other than OEM, refer to operator's manual for proper servicing, hourly replacement intervals, and filter locations.

1. Thoroughly clean filter header and surrounding area to prevent dirt and debris from entering fuel system.

2. Connect a hose to filter drain valve (C) on bottom of filter and drain all fuel from filter element.

3. Loosen and remove fuel filter element (A).

Install final fuel filter element

1. Place new filter packing (B) on filter element.

2. Apply a thin film of fuel on packing.

3. Screw filter element into fuel filter header (D) then tighten to 10 N·m (7.5 lb.-ft.).

NOTE: To prime the fuel system before starting engine, turn ignition key to ON for 60 seconds.