Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 2720 Tractor Specs Overview

John Deere 2720 Tractor Engine

Engine Model - Yanmar 3TNV88
Engine Power, Rated, hp (kW) - 31.4 (23.4)
Engine Speed, rpm - 2500
Power Boost, hp (kW) - No boost
Fuel Tank, gal (L) - 7.1 (27)
Cylinders - 3
Displacement, cu in (L) - 100.2 (1.642)
Engine Bore, in (mm) - 3.46 (88)
Engine Stroke, in (mm) - 3.54 (90)
Block Design, Replaceable Liners - Cast-in block
Aspiration, Turbocharged or Naturally Aspirated - Natural

Fuel System

Fuel System Description - Rotary-Distributor Type
Fuel System Control - Mechanical
Fuel Injection to combustion chamber - Direct

Emission and Exhaust Treatment

Exhaust Pipe - Horizontal

Tractor Cooling System

Fan Drive Type - Belt

Electrical System

System Rating, Volts - 12
Alternator Rating, Amps - 40

John Deere 2720 Tractor Transmission

Description - Hydro - 2 Range
Transmission Type - Hydrostatic
Forward / Reverse Speeds - Infinite, 2 range
Maximum Speed Forward, mph (kph) - 13.0 (20.9)
Creeper Range - Yes, hydrostatic
Shuttle (Forward-Reverse) - Yes

John Deere 2720 Tractor PTO (Power take off)

PTO Horsepower, hp (kW) - 23.5 (17.5)
PTO Speeds, rpm - 540
PTO operational Type - Independent

Wheels

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 2720 Tractor Hydraulic System

Hydraulic System Type - Open Center
Main Hydraulic Pump Type - Gear
Standard Pump Flow, gpm (Lpm) - 10.5 (39.6)
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) - 1,250 (567)
Standard Lift Capacity at lift pin, lb (kg) - 1,433 (650)

Drawbar

Drawbar Description - Swinging Drawbar

Wheelbase

Wheelbase, 4WD, in (mm) - 65.2 (1655)

Tire Size

Front Tire Size, 4WD - 23 x 8.5 - 12 R4
Rear Tire Size - 14 - 17.5 R4

Twin Touch pedal transmission - it is easy to switch back and forth, and let you rest your heel on the all-time platform driving. Standard, easy to use cruise control allows you to focus on the task at hand.

JD 2720 Tractor Other Options:

- Canopy
- Forward working lights
- weight forward
- Protective Cover
- Independent hydraulic mower lift
- mechanical hydraulic shuttle
- Hydraulic power beyond
- Weight of the rear wheel
- Rear light work
- Umbrella
- Warning light guards
- 3rd rear hydraulic kit SCV

John Deere 2720 Tractor Troubleshooting

JD 2720 Tractor Engine

Engine Will Not Start Or Is Hard To Start

- Transmission range shift lever not in proper position.

- PTO engaged.

- Engine speed hand throttle not pushed forward.

- Fuel shut-off valve CLOSED (OFF).

- Stale fuel / improper fuel / fuel level.

- Wrong engine oil viscosity.

- Cold start system not being used, or malfunctioning.

- Plugged fuel filter.

- Plugged air intake filter.

- Dirty or faulty fuel injectors.

- Blown fuse.

- Failed fuel solenoid.

- Other electrical problem.

Engine Runs Rough Or Stalls

- Fuel shut-off valve partially closed.

- Plugged fuel filter.

- Plugged air intake system.

- Fuel cap vent dirty.

- Faulty seat switch.

- Stale or improper fuel / fuel level.

- Dirty or faulty fuel injectors.

- Low coolant temperature.

- Fuel pump not functioning properly.

John Deere 2720 Tractor Engine Overheats

- Dirty grille, radiator screen, or radiator cooling fins.

- Plugged air intake filter.

- Low coolant level.

- Cooling system needs flushing.

- Defective radiator cap.

- Defective thermostat.

- Defective water temperature indicator or sender.

- Low oil level.

- Loose or defective alternator belt.

- Engine speed too low. Do not operate at slow idle.

- Operating at too fast ground speed for conditions.

Engine Knocks

- Engine oil level low.
- Injection pump out of time.
- Low coolant temperature.
- Engine overheating.
- Idle speed too slow.

Machine

Hood is Hard to Latch

- Debris in hood latch area.
- Excessive Machine Vibration
- Engine speed too slow.
- Drive shaft universal joint bearings worn.
- Throttle linkage out of adjustment.

Machine Will Not Move With Engine Running

- Park brake locked.
- Transmission oil level low.
- Transmission oil cold - allow engine to warm.
- Range shift lever in “N” (neutral) position.

JD 2720 Tractor 3-point Hitch

Fails To Lift

- Low oil level.
- Rate-of-drop valve closed.
- Excessive load on hitch.
- Hydraulic oil too cold.

3-point Hitch

Drops Slowly Or Does Not Drop

- Rate-of-drop valve closed.
- Rate-of-drop valve set too slowly.

Drops Too Fast

- Rate-of-drop valve set too fast.
- Load too heavy.

JD 2720 Tractor Brakes

Rear Wheel Brakes Not Working

- Brakes out of adjustment.
- Worn or damaged brake linkage.

John Deere 2720 Tractor Steering

Steering Not Working

- Improper tire inflation.
- Low hydraulic fluid levels.
- Steering linkage needs lubrication.
- Excessive play in steering.

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