Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere X120 Specs

John Deere X120 Engine Specifications

Engine Model - Briggs and Stratton 31
Displacement - 502 cc (30.6 cu in.)
Bore - 90.60 mm (3.56 in.)
Stroke - 77.78 mm (3.06 in.)
Ignition Module (Armature) Air Gap - 0.253-0.356 mm (0.010-0.014 in.)
Intake Valve Clearance - 0.076-0.127 mm (0.003-0.005 in.)
Exhaust Valve Clearance - 0.13-0.18 mm (0.005-0.007 in.)
Spark Plug-Gap - 0.76 mm (0.030 in.)
Spark Plug-Torque - 20 Nm (15 lb-ft)
Start Type - Electric
Application - Riding mower, lawn tractor, trail mower
Engine Type - Intek
Shaft Output - Vertical
Crankshaft - 1 x 3 5/32
Shaft Diameter (in.) - 1
Shaft Length (in.) - 3 5/32
Shaft Keyway (in.) - 1/4
Shaft End Tapped (Diameter (in.)/Threads per inch) - 7/16-20
Shaft Rotation (From PTO Shaft Side) - CCW
Bearing Type - Plain
Cylinders (qty.) - 1
Cylinder Bore - Cast iron
Compression Ratio - 8.5:1
Cooling System - Air cooled
Air Cleaner Type - Dual element
Fuel Tank - Not included
Fuel Type - Gasoline
Fuel Filter - Yes
Crankcase Capacity, with Oil Filter - 1.4 L (1.5 qt)
Fuel Tank Capacity - 15.1 L (3.9 gal)
Fuel Types - 87 Octane Unleaded Fuel
Oil Capacity (qt.) - 1 1/2
Lubrication System - Splash
Ignition System - Electronic
Governor System - Mechanical
Carburetor - Float
Throttle Control - Remote
Choke Control - Manual
Fast Idle Engine Speed - 3250
Rotation Speed of Cutting Device with 42C Mower - 2909 r/min at 3350 r/min engine speed
Max. RPM - 3,300
Charging System Amps - 9
Muffler Included - Yes
Auto Compression Release - Yes
Bolt Circle (in.) - 10
Dimensions L x W x H (in.) - 19 x 16 x 13
Sound without Mower - 83.6 dB(A) at 3250 r/min engine speed
Sound with 42C Mower - 86.0 dB(A) at 3250 r/min engine speed
Vibration with 42C Mower - Below 2.5 m/s2

JD X120 Electrical System

Charging System - Regulated Circuit
Charging System Capacity - 9 Amp
Battery Voltage - 12 Volts
Battery Type - BCI Group U1

John Deere X120 Transmission

Transmission - Hydrostatic
Transaxle Model - Tuff Torq T40
Travel Speed (Forward) - 0-8.9 km/h (0-5.5 mph)
Travel Speed (Reverse) - 0-5.2 km/h (0-3.2 mph)

JD X120 Mechanical

Transmission - Hydrostatic
Front Power Take-Off - Independent
Clutch Type - Electric
Steering - Manual Steering
Cab - Open operator station (OOS)

Tire Sizes

Front Tires - 15 x 6.00 - 6
Rear Tires - 20 x 8.0 - 8
Tire Pressure (Front) - 97 kPa (14 psi)
Tire Pressure (Rear) - 69 kPa (10 psi)

John Deere X120 Mower

Model - 42C Mower
Mower Deck - 107 cm (42 in.)
Blades - Rotary 2
Blade Nut Torque (w/ M12 Nut) - 75 Nm (55 lb-ft)
Blade Nut Torque (w/ 5/8 in. Nut) - 88 Nm (65 lb-ft)
Cutting Height (Approximately) - 25-102 mm (1-4 in.)
Cutting Width - 1067 mm (42 in.)

Dimensions

Height - 1130 mm (44.5 in.)
Length (Overall) - 1750 mm (68.75 in.)
Width (Mower Deck Chute Down) - 1310 mm (51.75 in.)
Weight - 204 kg (450 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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