Specifications, Service and Repair of Farm and Lawn Tractors


John Deere 3038E/3038 Tractor Specs Overview

John Deere 3038E/3038 Tractor Engine

Engine Model - Yanmar 3TNV84T
Engine Power, Rated, hp (kW) - 37.1 (27.3)
Engine Speed, rpm - 2500
Power Boost, hp (kW) - No boost
Fuel Tank, gal (L) - 6.4 (24.2)
Cylinders - 3
Displacement, cu in (L) - 91.5 (1.496)
Engine Bore, in (mm) - 3.31 (84)
Engine Stroke, in (mm) - 3.54 (90)
Block Design, Replaceable Liners - Cast in Block
Aspiration, Turbocharged or Naturally Aspirated - Turbocharged
Fuel System Description - Rotary-Distributor Type
Fuel System Control - Mechanical
Fuel Injection to combustion chamber - Direct
Exhaust Pipe - Underhood std; vertical opt
Fan Drive Type - Belt
System Rating, Volts - 12
Alternator Rating, Amps - 40

John Deere 3038E/3038 Tractor Transmission

Description - Hydro - 2 Range
Transmission Type - Hydrostatic
Forward / Reverse Speeds - Infinite, 2 ranges
Maximum Speed Forward, mph (kph) - 13 (20.9)
Creeper Range - Yes, hydrostatic
Shuttle (Forward-Reverse) - Yes

John Deere 3038 Tractor PTO (Power take off)

PTO Horsepower, hp (kW) - 30 (22.4)
PTO Speeds, rpm - 540
PTO operational Type - Independent


Drive Wheels - 4WD
Tractor Steering Configuration - Front Steer

Rear Axle

Final Drive - Spur gear
Axle Output End - Flange
Axle Bar Diameter, in (mm) - No bar axle

Tractor Brakes

Brake Type - Wet Disk

John Deere 3038E Tractor Hydraulic System

Hydraulic System Type - Open Center
Main Hydraulic Pump Type - Dual Gear
Standard Pump Flow, gpm (Lpm) - 9.3 (35.2)
Standard Remote Valves - 2

3-Point Hitch Features

3-Point Hitch Category - Category 1
Draft Sensing or Lift Control - Position Control
Draft Link Ends Adjustable - Yes

3-Point Hitch Lift Capacity

Standard Lift Capacity 24 Inches behind pin, lb (kg) - 1,356 (615)


Drawbar Description - Optional Drawbar


Wheelbase, 4WD, in (mm) - 60 (1525)

Tire Size

Front Tire Size, 4WD - 7.00-14 4PR R1
Rear Tire Size - 11.2-24 4PR R1

JD 3038E/3038 Tractor Features

- LoadMatch - LoadMatch electronic power management system maximises torque and virtually eliminates the possibility of stalling.

- Performance - Tracking System An exclusive digital Performance Tracking System instantly tells you the status of the vital systems on your tractor.

- Digital Speedometer A digital speedometer is perfect for precision tasks like seeding.

- Direct-Injection - Direct-injection diesel engines are quick starting offer deep reserves of torque for pulling heavy loads.

- Tilt Steering - John Deere 3038E Tractor Tilt steering wheel and seat adjust for your comfort.

- Controls - Standard loader joystick stays close at hand and clear of your knee.

- Standard 4WD - Digs in when doing loader work or rotary cutting over challenging ground.

- 300 CX Loader - The 300 CX Loader lets you attach and detach in minutes— with no tools.

- Folding ROPS - An EZ Fold ROPS ensures tractor fits easily in any shed.

- Up to 5 SCV - Up to five independent selective control valves for a wide variety of hydraulic implements.

JD 3038E Tractor Service Engine

Changing Engine Oil and Filter:

- Run engine to warm the oil.

- Place drain pan under oil drain located on left side of engine.

- Remove drain plug.

- Wipe dirt from around oil filter.

- Turn filter counter-clockwise to remove.

- Put a light coat of clean engine oil on the gasket of new filter.

- Install replacement oil filter by turning filter clockwise until gasket contacts filter base.

- Tighten additional one-half turn.

- Install drain plug. Do not overtighten.

- Remove oil fill cap.

- Add John Deere 3038E Tractor engine oil.

- Install oil fill cap.

- Start and run engine at idle to check for leaks.

- Stop engine. Fix any leaks before operating.

- Check engine oil level and add oil if necessary.

Servicing Air Filter Element:

- Allow engine to cool.

- Raise hood.

- Remove strap.

- Tilt canister up and release latches and remove air cleaner canister cover.

- Remove and discard primary element.

- Clean out any dirt in canister, taking care not to damage the secondary filter element.

- Replace with a new primary filter element.

- Install air cleaner canister cover with rubber dust unloading valve pointing downward.

- Secure latches.

- Position canister back in place and install strap.

- Check instruction molded into canister cover for proper installation.

- Lower hood.

Changing Transmission Oil and Hydraulic Suction Oil Filter:

- Drive JD 3038 Tractor tractor a few minutes to warm and mix transmission oil.

- Position drain pan under transmission drain plug at rear cove.

- Suction filter assembly and spin-on pressure filter at left side of transmission.

- Remove plug and allow oil to drain.

- Remove suction filter and allow oil to drain.

- Remove and HST filter and allow oil to drain.

- Install transmission drain plug.

- Replace both filters.

- Remove fill cap.

- Add recommended oil into filler opening.

- Start engine. Check for oil leaks around filter bases and drain plugs.

- Stop engine.

- Check transmission oil level.