John Deere Tractor 5085E

Is tractor parked on level ground?

Is engine turned off and key removed?

Check engine oil level. Oil level should be between two marks on dipstick.

If level is low, has oil been added through oil filler hole until even with upper mark?

Drain Water and Sediment from Fuel Filter

Has fuel tank drain plug been opened to bleed accumulated moisture and sediment from the fuel tank?

Has fuel filter/water separator drain been opened to bleed accumulated moisture and sediment from filter?

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

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.

MFWD Axle Housing and Wheel Hub Oil Level Check

Tractor parked on level ground and engine shut off

Oil level even with bottom of the filler plug hole

Type of oil added if level was low

Thread sealant applied to threads of plug

Plug installed and tightened to specifications

MFWD Axle Wheel Hub Oil Level Check

Tractor parked so that oil fill mark on MFWD hub is level with the ground

Oil level even with bottom of the filler plug hole