Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere X520 Specs

John Deere X520 Engine Specifications

Make - Kawasaki iTorque Power System
Model Number - FD731V
Cylinders - V-Twin
Cycle - Four
Engine Type - Liquid-cooled, Vertical shaft, OHV, 4-stroke, 90° V-twin, Gasoline engine
Engine Bore - 75.2 mm (2.96 in.)
Engine Stroke - 76 mm (2.99 in.)
Piston displacement - 675 mL (41.2 cu in.)
Direction of rotation - Counterclockwise facing the PTO shaft
Low idle speed - 1550 r/min (rpm)
High idle speed - 3600 r/min (rpm)
Ignition system - Solid-state ignition
Starting system - Shift type electric starter
Charging system - 12V/20 A with regulator
Carburetor - Float type, fixed main jet
Fuel pump - Diaphragm type pulse pump
Pre-Cleaner - Primary element
Two-Stage Cleaner - Secondary element
Air cleaner - Dual stage element, dry type
Governor - All speed mechanical fly weights
Lubrication system - Pressure feed by positive displacement pump
Oil filter - Cartridge type full flow filter
Oil capacity - 2.0 L (2.1 US qt)
Cooling system - Pressurized forced circulation type
Radiator - 2-rows with louverless corrugated fin (aluminum)
Cooling - Liquid Cooled
Spark Plug Gap - 0.75 mm (0.030 in.)
Spark Plug Torque - 25 Nm (18 lb-ft)
Dimensions (HxWxL) - 555 mm x 434.5 mm x 431.5 mm (21.9 in. x 17.1 in. x 17.0 in.)
Dry weight - 45 kg (99 lb)
Cylinder compression (MIN) - 682 kPa (99 psi)
Cylinder head warp - 0.03 mm (0.001 in.)
Valve head thickness - 0.35 mm (0.014 in.)
Valve stem bend - 0.05 mm (0.002 in.)
Valve stem diameter - 6.94 mm (0.2730 in.)
Valve guide inside diameter - 7.08 mm (0.279 in.)
Valve spring free length - 32.9 mm (1.30 in.)

John Deere X520 Transmission

Transmission Type - Belt-driven hydrostatic
Transaxle Model - Kanzaki Tuff Torq K72B
Transaxle Type - Variable Speed Hydrostatic
Reduction Ratio - 23.37:1
Axle Torque (rated) (Nm) - 549
Max. tire size (inch) - 24
Brake Capacity (Nm) - @ 33.1 N 656
Pump/Motor Displacement (cc/min-1) - 18/23
Max. Input Speed (min-1) - 3,400
Axle Shaft Size (mm) - 25,4
Max. Static Weight on Axle (kg) - 459
Weight (Dry) (kg) - 27.5
Brake - Wet disk, internal
Housing (Case) - Aluminum Die Casting
Differential - Automotive Type Bevel Gears
Differential lock - Option
Speed Control System - Foot Control / Hand Control
Auxiliary hydraulic output - Option (For Power Steering, Lift and Others) 6.9L/min, 31bars (450psi) @ 2,000rpm
Bypass Valve - Standard
Oil Reservoir - External Reservoir
Travel Speeds at Full Engine RPM (Forward) - 0-11.3 km/h (0-7.0 mph)
Travel Speeds at Full Engine RPM (Reverse) - 0-6.4 km/h (0-4.0 mph)

JD X520 Mechanical

Chassis - 4x2 2WD
Differential lock - Foot-activated standard
Steering - Manual sector-and-pinion
Mid PTO - Independent
Clutch - Electric
Rear Hitch Type - Sleeve hitch (optional)

Electrical System

Starting system - Electric starter and/or recoil starter
Charging system 12V - 13 amps with regulator
Battery Type - 12 Volt
Cold Cranking Capacity - 500 Amps

JD X520 Tire Sizes

Front Tires - 16x6.50-8 (HDAP)
Rear Tires - 24x12.00-12 (HDAP)
Inflation (Front) - 97 kPa (14 psi)
Inflation (Rear) - 69 kPa (10 psi)

John Deere X520 Attachments

48" Mower

Model - 48X Mower Deck
Type - Mid-mount
Blades-Rotary - 3
Lift System - Manual spring-assisted
Cutting width - 48 inches (121 cm)
Belt - M154897 (drive) / M194958 (deck)
Weight - 112 lbs (50 kg)
Overall width - 58.5 inches (148 cm)
Cut height - 1 to 4 inch (2 to 10 cm)
Cut positions - 13

54" Mower

Model - 54X Mower Deck
Type - Mid-mount
Blades-Rotary - 3
Lift System - Manual spring-assisted
Cutting width - 54 inches (137 cm)
Belt - M154897 (drive) / M154960 (deck)
Weight - 153 lbs (69 kg)
Overall width - 64.5 inches (163 cm)
Cut height - 1 to 4 inch (2 to 10 cm)
Cut positions - 13

John Deere X520 Dimensions

Height - 122 cm (48 in.)
Width (without mower deck) - 104 cm (41 in.)
Length - 201 cm (79 in.)
Weight (without mower deck) - 322 kg (710 lb)

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JOHN DEERE LAWN TRACTORS SPECIFICATIONS

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ENGINES FOR JOHN DEERE LAWN TRACTORS

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JOHN DEERE TRACTORS ATTACHMENTS
420 430 455 790 990
X300 X320 X330 X350 X475
X485 X500 X540 X570 X590
X700 X720 X738 X758 1023E
2025R 2210 2520 3025E 3032E
3038E 3038R 3039R 3046R 3203
3320 3520 4052R 4066R 4100
4105 4115 4200 4310 4320
4400 4410 4520 4600 4720

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JOHN DEERE FRONT END LOADERS

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JD TRACTORS TROUBLESHOOTING
2640 3040 3310 3650 4100
5050D 5090R 5410 6105R 7200R
E130 L111 LA110 LT155 X300R

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JOHN DEERE FARM TRACTORS SPECIFICATIONS

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