Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere X749 Specs

John Deere X749 Engine Specifications

Engine Model - Yanmar 3TNV76
Number of Cylinders - 3
Engine Type - Inline, Water-Cooled, 4 Stroke Diesel
Engine Gross Power - 17.9 kW (24hp)
Bore x Stroke mm x mm - 76x82
Total Displacement cc - 1.116
Combustion type - Indirect Injection
Aspiration - Natural Aspiration
Valves per Cylinder - 2
Compression ratio - 23.5
Firing Order - 1-3-2
Low Idle Speed rpm - 1500
High Idle Speed rpm 3770
Direction of rotation - Counter Clockwise (view from flywheel)
Length - Inches (mm) - 22.3 (567)
Width - Inches (mm) - 16.8 (427)
Height - Inches (mm) - 23.7 (601)
Dry Weight lbs (kg) - 271 (123)
Flywheel - SAE 5
Flywheel Housing - SAE 5 (124 mm Depth)
Gear Case - without SAE Hydraulic Pump Flange
Inclination, Continuous degrees - 25
Inclination, 3 minutes Max. degrees - 30
Lubrication Oil Filter Type - Paper Element
Oil Capacity, Effective Liters - 1.6
Total System Capacity Liters - 3.5
Oil Change Interval, Hours hr - 250 (50, initial)
Recommended Oil Type - CD, CE, CF or higher grade
Cooling System Fan Type - Pusher
Fan Diameter Inches (mm) - 13.2 (335)
Number of Blades - 6
Fan Pulley Diameter Inches (mm) - 3.9 (100)
Crank Pulley Diameter Inches (mm) - 4.3 (110)
Fuel Filter Type - Paper Element
Fuel Injection Pump Type - Inline Type
Water Separator (Standard) - Mesh size: 100-mesh/inch, water reservoir 150 cc
Electrical System Voltage Volts - 12 V
Electric Stop Device - Stop Solenoid (Pull Coil Timer: 1 sec.)
Alternator - 12V-40A
Starting Aid Device - Glow Plug, 12V
Standard pre-heat time Seconds - 3
Starting Motor Type - Conventional
Starting Motor Power kW - 1.1 ± 0.3

JD X749 Power Take-off

Rear PTO - Independent
Rear RPM - 540
Mid PTO - Independent
Mid RPM - 2000
Front PTO - Optional
Front RPM - 2000
PTO engagement - Electro-hydraulic

John Deere X749 Transmission

Transmission Type - 2-Pedal Foot Control Hydrostatic
Transaxle - Tuff Torq K92
Number of Speeds - Infinite
Cruise control - Standard
Reduction Ratio - 28.125:1
Axle Torque (Rated) - 882 (650) Nm (lb-ft)
Max. Tire Diameter - 660 (26) mm (in)
Brake Capacity - 1,470 (1,085) Nm (lb-ft) @ 69 Nm (51 ft-lb) Brake Arm Torque
Displacement (Pump/Motor) - 18/18 cc/rev
Max. Input Speed - 3,200 rpm
Axle Shaft Size - 30 (1.18) with Flanged Axle mm (in)
Weight (dry) - 56 (123) kg (lb)
Brake Type - Wet Disc
Housing (Case) - Die-Cast Aluminum
Gears - Heat-treated Steel Gears
Differential - Automotive-type Bevel Gears
Differential Locks - Standard, Interlocked with Brake
Auxiliary/External Hydraulic Outlets - 14.4L per minute 50 bars (725 psi) @ 3,200 rpm
Hydraulic fluid type - ISO32 Hydraulic Oil (Anti-Brake Squeal Type) - 7.5L (2WD), 7.8L (4WD)
Oil Filter - Automotive screw on type
Transaxle Oil - Low Viscosity HY-GARD (J20D)
Forward Speeds - 0 to 13.7 km/h (0 to 8.5 mph)
Reverse Speeds - 0 to 8.1 km/h (0 to 5.0 mph)

Mechanical

Chassis - 4 Wheel Drive (HFWD)
Front axle - Cast iron
Front wheel (each) - Automatically adjusted speed
Front Drive Axle Oil - GL-5 Gear Lubricant (80W-90)
Rear Transaxle - Heavy duty
Steering - Hydrostatic power
Brakes - Internal wet disc
Disc Brakes - Oil immersed

JD X749 Hydraulics and Hitch

Hydraulic Pressure - 924 psi (63.7 bar)
Selective Control Valves - 2 dual SCV
Total Hydraulic Flow - 4.5 gpm (17.0 lpm)
Steering/hydraulic flow, l/min - 23.4
Rear hitch - 400 kg at liftpoints
Front hitch - Optional

Tire Sizes

Front Tire / Pressure - 18x8.50-10, Turf, 4PR / 82-110 kPa (12-16 psi)
Front Tire / Pressure - 18x8.50-10, HDAP, 4PR / 82-110 kPa (12-16 psi)
Rear Tire / Pressure - 26x12.00-12, Bar, 4PR / 40-138 kPa (6-20 psi)
Rear Tire / Pressure - 26x12.00-12, HDAP, 2PR / 40-70 kPa (6-10 psi)

Capacities

Fuel Tank - 24.6L (6.5 gal)
Four-Wheel Steer Transaxle (with filter) - 5.6L (6.0 qt)
HFWD System Transaxle (with filter) - 6.8L (7.2 qt)
Cooling System - 2.8L (3.0 qt)
Engine Oil (with filter) - 2.6L (2.75 qt)
4WD (MFWD) Front Drive Axle - 2.4L (2.5 qt)
Full Time 4WD (HFWD) Front Drive Axle - 5.0L (5.3 qt)

John Deere X749 Attachments

48X Mower Deck

Type - Mid-Mount, 3-blade
Cutting width - 48 inches (1,21 m)
Weight - 117 lbs (53 kg)
Cut height - 1 to 5.25 inch (2 to 13 cm)
Cut positions - 18
Lift - Hydraulic

54X Mower Deck

Type - Mid-Mount, 3-blade
Cutting width - 54 inches (1,37 m)
Weight - 170 lbs (77 kg)
Overall width - 64.5 inches (1,63 m)
Cut height - 1 to 5.25 inch (2 to 13 cm)
Cut positions - 18
Lift - Hydraulic

62X Mower Deck

Type - Mid-Mount, 3-blade
Cutting width - 62 inches (1,57 m)
Weight - 200 lbs (90 kg)
Cut height - 1 to 5.25 inch (2 to 13 cm)
Cut positions - 18
Lift - Hydraulic

John Deere X749 Dimensions

Overall Height - 1,27 m (50,0 in.)
Overall Width - 1,23 m (48,3 in.)
Overall Length - 2,00 m (78,8 in.)
Wheel Base - 1,42 m (56,0 in.)
Weight 4WD (HFWD) / 4WS - 554kg (1221 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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