The John Deere Tractor 4020 is a versatile agricultural machine known for its reliability and efficiency. This model is ideal for various farming tasks, offering robust performance and ease of maintenance, making it a favorite among farmers and agricultural professionals.

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Manual for John Deere Tractor 4020

MAINTENANCE RESOURCES

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Documents & Manuals

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Tensioning Guide
Belt-diagram
C-120 pulleys
+ 13 more

Work Order Templates

Pre-built workflows to keep your asset running smoothly.

Daily Electrical System Inspection
Replace Roller and Pulley
Install Engine B-120
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Procedures

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Motion Industries
Applied Industrial Technologies
Electrical Brothers
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Parts

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Drive Motor
B2 Rollers
Tensioning System
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John Deere Tractor 4020

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Maintenance Plans for John Deere Tractor Model 4020

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1200 Hourly Maintenance

Perform items 2, 4, 6, 7, and 8 in the regular daily or 10 hour service; item 10 in the 50 hour service; items 12 through 16, and 19 through 22 in the 200 hour service; and items 24 through 36 in the 600 hour service in addition to the following.

37. LUBRICATING FRONT WHEEL BEARINGS

Clean and pack the front wheel bearings and oil seal.

Adjust the front wheel bearings.

38. DRAINING AND FILLING TRANSMISSION-HYDRAULIC SYSTEM

With the engine warm, remove the transmission-hydraulic system drain plugs and drain the oil.

Replace the drain plugs.

Add new John Deere Type 303 Special-Purpose Oil or its equivalent at the filler cap.

Bring the oil level on the dipstick to the top of the "SAFE" range.

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10Hours/Daily Maintenance

Checking engine crankcase oil level

Checking radiator coolant level

Checking air cleaner

Checking pre-cleaner collector bowl

Checking fuel pump sediment bowl (Diesel or Gasoline)

Lubricating wide-swing drawbar

Lubricating front axle

Lubricating Hi-Crop rear axle

Lubricating front wheels (All Tractors) and rear axles (Row-Crop and Standard Tractors)

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200 Hourly Maintenance

Perform item 2 and items 4 through 9 in the regular daily or 10 hour service; item 10 in the 50 hour service in addition to the following.

DRAINING, CLEANING, AND FILLING AIR CLEANER

Steps taken for draining, cleaning, and filling air cleaner

DRAINING AND FILLING CRANKCASE

Steps taken for draining and filling crankcase

DRAINING CARBURETOR SUMP (LP-Gas)

Steps taken for draining carburetor sump

CHECKING GENERATOR BELT TENSION

Steps taken for checking generator belt tension

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600 Hourly Maintenance

Perform items 2, 4, and 6 through 9 in the regular daily or 10-hour service; item 10 in the 50-hour service; and items 12 through 16 and 18 through 23 in the 200-hour service in addition to the following.

Checking air cleaner connections

Servicing air cleaner

Draining fuel-lock strainer (LP-Gas)

Cleaning fuel tank sediment bowl and fuel tank sump

Replacing fuel filter element (Diesel)

Checking valve clearance

Cleaning fuel injectors (Diesel)

Checking injection pump timing (Diesel)

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50 Hourly Maintenance

Perform items 1 through 9 in the regular daily or 10-hour service in addition to the following.

10. LUBRICATING PTO CLUTCH BEARING (Syncro-Range Tractors)