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John Deere X728 Specs
John Deere X728 Engine Specifications
Engine Model - Kawasaki FD750D
Engine Type - 4-stroke, OHV, V-twin 90°
Max. horsepower - 25.4 PS (18.7 KW; 25.0 HP) at 3,600 rpm
Max. torque (crank PTO) - 55.6 Nm (5.7 41.0 ft-lb) at 2,600 rpm
Cylinders - Two
Cycle - Four
Displacement - 745cc (37.7 cu in.)
Bore/Stroke - 78mm (3.07 in.)
Compression Ratio - 8.5
Speed (fast idle), no load - 3550 +/- 25 rpm
Speed (slow idle), no load - 1600 +/- 25 rpm
Lubrication - Full pressure
Oil Filter - Full flow (replaceable)
Air Cleaner - Dual element replaceable paper
Cooling System - Liquid-cooled
Carburetor - Float type carburetor with fixed main jet
Ignition system - Transistorized ignition
Starting system - Electric starter
Charging system - 12 Volt – 20A or 30A with regulator
Fuel used - Unleaded gasoline (octane number 86 or higher)
Fuel consumption - 230 g/HPh
Cooling system - Pressurized forced circulation type
Cylinder compression - 7.5 kg/cm2 (107 psi) at 500 rpm
Intake valve clearance - 0.15 mm (0.006 in)
Exhaust valve clearance - 0.15 mm (0.006 in)
Oil type - 4-stroke or an equivalent (SC, SD, SE, SF, SG, or SH)
Recommended oil - SAE 10W-40, 10W-30, 5W-20
Oil capacity (with filter changed) - 1.8-2.0 L (1.9-2.1 US qt)
Spark plug - NGK BPR2ES
Spark plug gap - 0.75 mm (0.03 in)
Spark plug tightening torque - 25 Nm; 18.5 ft-lb
Ignition coil air gap - 0.25-0.40 mm (0.009-0.015 in)
Cylinder head torque - 27 Nm; 20 ft-lb
Connecting rod torque - 21 Nm; 15.5 ft-lb
Flywheel torque - 56 Nm; 41 ft-lb
Crankcase cover torque - 22 Nm; 16.2 ft-lb
Intake manifold torque - 12 Nm; 9 ft-lb
Oil drain plug torque - 25 Nm; 18.5 ft-lb
Valve clearance lock nut torque - 11 Nm; 8 ft-lb
JD X728 Transmission
Transmission Type - Shaft-driven hydrostatic
Transaxle Model - Tuff Torq K92
Transaxle Type - 2-Pedal Foot Control Hydrostatic
Gears - Infinite forward and reverse
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
Travel Forward Speeds - 0 to 13.7km/h (0 to 8.5 mph)
Travel Reverse Speeds - 0 to 8.1km/h (0 to 5.0 mph)
John Deere X728 Power Take-off
Rear PTO - Independent (Optional)
Rear RPM - 540
Mid PTO - Independent
Mid RPM - 2000
Front PTO - Optional
Front RPM - 2000
JD X728 Mechanical
Chassis (Standart) - 4x4 MFWD 4WD
Chassis ( Optional) - 4x4 HFWD 4WD
Steering - Four-wheel hydrostatic power
Brakes Type - Internal wet disc
Four-Wheel Steer Transaxle Capacity (with filter) - 5.6L (6.0 qt)
Full Time 4WD (HFWD) Front Drive Axle Capacity - 5.0L (5.3 qt)
Electrical System
Charging System - Stator, 20 amp
Battery - 340 CCA (cold cranking amps)
12-Volt Outlet - Maximum 20 amp
Starter - 0.8 kW (12 volt Electric Start)
Starting System - Shift type electric starter
Tire Pressures
Front Tires 18x8.50-10, Turf, 4PR - 82-110 kPa (12-16 psi)
Front Tires 18x8.50-10, HDAP, 4PR - 82-110 kPa (12-16 psi)
Rear Tires 26x12.00-12, Bar, 4PR - 40-138 kPa (6-20 psi)
Rear Tires 26x12.00-12, HDAP, 2PR - 40-70 kPa (6-10 psi)
John Deere X728 Attachments
48-inch Mower
Model - 48X Mower deck
Type - Mid-mount
Blades-Rotary - 3
Lift System - Hydraulic
Cutting width - 121 cm (48 in.)
Weight - 117 lbs (53 kg)
Overall width - 156 cm (61.5 in.)
Cut height - 2 to 10 cm (1 to 4 in.)
54-inch Mower
Model - 54X Mower deck
Type - Mid-mount
Blades-Rotary - 3
Lift System - Hydraulic
Cutting width - 137 cm (54 in.)
Weight - 150 lbs (68 kg)
Overall width - 171 cm (67.7 in.)
Cut height - 2 to 10 cm (1 to 4 in.)
60-inch Mower
Model - 7-Iron Mower deck
Type - Mid-mount 7-Iron
Blades-Rotary - 3
Lift System - Hydraulic
Cutting width - 152 cm (60 in.)
Weight - 342 lbs (155 kg)
Overall width - 155 cm (61.3 in.)
Cut height: 2 to 13 cm (1 to 5.25 in.)
Cut positions - 18
62-inch Mower
Model - 62X Mower deck
Type - Mid-mount
Blades-Rotary - 3
Lift System - Hydraulic
Cutting width - 157 cm (62 in.)
Weight - 277 lbs (125 kg)
Overall width - 184 cm (72.5 in.)
Loader
Loader Model - John Deere 45
Weight - 515 lbs (233 kg)
Height (to pin) - 73 inches (185 cm)
Clearance, dumped bucket - 57 inches (144 cm)
Dump reach - 23 inches (58 cm)
Dump angle - 45
Reach at ground - 43.3 inches (109 cm)
Rollback at ground - 25
Breakout force (at pin) - 1,105 lbs (501 kg)
Breakout force (at 500mm) - 770 lbs (349 kg)
Breakout force (bucket) - 740 lbs (335 kg)
Lift to full height (at pin) - 365 lbs (165 kg)
Bucket capacity - 0.19 cu yd (0.1 cu m)
Bucket width - 48 inches (121 cm)
John Deere X728 Dimensions
Overall Height - 1300 mm (51.2 in.)
Overall Width - 1200 mm (46.8 in.)
Overall Length - 1900 mm (75.0 in.)
Wheel Base - 1400 mm (55.7 in.)
Weight Full Time 4WD (HFWD) - 469 kg (1035 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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