John Deere Tractor 5085E

Raise hood and locate fuel tank vent filter (A) on left-hand side of tractor.

1. Remove and clean fuel tank vent filter with a soapy solution.

2. Blow dry with compressed air and install.

3. If fuel tank vent filter is damaged, replace.

1. Remove fan belt. (See Replacing Fan Belt in this section.)

2. Put a mark (A) on swing arm of tensioner as shown.

3. Measure 21 mm (0.83 in.) from (A) and put a mark (B) on tensioner mounting base.

2. Park tractor on level ground, place transmission in park, turn off engine and remove key. Raise hood.

3. Remove engine oil drain plug (A) and drain oil into an adequate size container.

4. Remove engine oil filter (B).

5. Apply a film of oil on new oil filter gasket and install new filter. Hand-tighten plus 1/2 turn.

7. Add oil to engine oil filler port (C).

8. Start engine and check for leaks.

Change Diesel Exhaust Fluid (DEF) Dosing Unit Filter

Remove DEF dosing unit filter cover (A)

Remove and discard DEF dosing unit filter equalizing element (B)

Insert “Black” end of DEF dosing unit filter tool (C) into DEF dosing unit filter (D) until CLICK is felt or heard indicating DEF dosing unit filter tool is fully engaged

Pull DEF dosing unit filter tool and DEF dosing unit filter from DEF dosing unit. Discard DEF dosing unit filter and DEF dosing unit filter tool

Clean DEF dosing unit threads and mating surfaces with distilled water

Lubricate DEF filter O-rings with clean DEF. Carefully insert DEF dosing unit filter into DEF dosing unit

Install new DEF dosing unit filter equalizing element into DEF dosing unit filter

Transmission Controls 1. Depress clutch pedal and brake pedals.

2. Place gear shift lever (A) in any position EXCEPT neutral or park. If equipped with reverser, place reverser lever (B) into forward or reverse direction position.

3. Attempt to start engine. If engine starts when transmission controls are not in neutral or park position, neutral start system should be repaired. See your John Deere dealer immediately.

1. Depress clutch pedal and brake pedals.

2. Lift PTO switch knob (A) up to engage PTO.

3. Start engine. If engine starts in this position, neutral start system should be repaired. See your John Deere Dealer immediately.