John Deere Tractor 5103

• Change transmission-hydraulic oil and filter

1. Lower rockshaft to remove trapped oil.

2. Remove drain plug (A) from transmission case and drain out oil. Dispose of waste oil properly.

3. If equipped with MFWD axle, also remove drain plug (B) in drop housing.

4. Replace filter (B) while changing oil. Apply a film of oil to new filter gasket and install new filter. Hand tighten only.

5. Fill system with transmission-hydraulic oil. (See Fuels, Lubricants and Coolant section.)

6. Check oil level at dipstick (D) after filling, and again after operating for five minutes.

• Clean transmission-hydraulic pickup screen

1. Drain transmission-hydraulic oil. (See Change Transmission-Hydraulic Oil and Filter in this section.)

2. Remove oil drain plug (A) and drain oil.

3. Replace engine oil filter (B) while changing oil. Apply a film of oil on the new oil filter gasket and install new filter. Hand tighten plus 1/2 turn.

5. Add seasonal viscosity grade oil. (See Fuels, Lubricants and Coolant section.)

• Replace transmission-hydraulic filter

1. Remove filter (A). Apply a film of oil to new gasket and install new filter. Hand tighten plus 1/2 turn.

2. Run engine several seconds and recheck transmission-hydraulic oil level.

Is oil level between two marks on dipstick?

DO NOT operate engine when oil level is below low mark on dipstick.

If level is low, add oil through oil filler hole until even with upper mark. DO NOT over fill.

Check coolant level in coolant tank

If engine is cool and level is below 'LOW' add coolant to recovery tank to bring to 'LOW'.

Drain water and sediment from fuel tank

Drain water and sediment from fuel filter

Remove thermostat cover and thermostat

Flush system with radiator cleaner

Remove thermostat cover and clean off the gasket material

Apply gasket sealant to new gasket and install thermostat and cover

• Replace transmission-hydraulic filter

• Inspect and adjust alternator/fan belt

• Check clutch pedal free travel

Adjusting PTO Clutch Operating Rod