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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)

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

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