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John Deere X748 Specs
John Deere X748 Engine Specifications
Engine Model - Yanmar 3TNV76
Type - Vertical Inline Diesel Engine
Max. Rated Output (Net) - 17.9 kW (24 hp)
Combustion - System Ball Type Swirl Chamber
Aspiration - Natural
No. of Cylinders - 3
Bore x Stroke - 2.992 x 3.228 in (76 x 82 mm)
Displacement - 68.029 cu in (1.115 L)
High Idling - 3210 rpm
Engine Weight (Dry) - 242.6 lb (110 kg)
Firing Order - 1-3-2-1 (No. 1 Cylinder on Flywheel Side)
PTO Position - Flywheel Side
Direction of Rotation - Counterclockwise Viewed From Flywheel Side
Cooling System - Liquid-Cooled With Radiator
Lubricating System - Forced Lubrication With Trochoid Pump
Normal Oil Pressure at Rated Engine Speed - 42-64 psi (0.29-0.44 MPa)
Normal Oil Pressure at Low Idle Speed - 8.5 psi (0.06 MPa) or greater
Electric Starting - Starter Motor: DC12V, 1.5 hp (1.1 kW)
Alternator - DC12V, 40A
Recommended Battery Capacity - 12V, 36 Amp-Hour (5h rating)
Dimensions (L x W x H) - 19.09 x 7.17 x 21.06 in (485 x 436 x 535 mm)
Engine Oil Pan Capacity - 3.6 / 1.9 qt (3.4 / 1.8 L) (Dipstick Upper
Limit / Lower Limit)
Engine Oil - PLUS-50
Engine Coolant Capacity - 0.2 gal (0.9 L)
Standard Cooling Fan - 13.19 in (335 mm) O/D, 6 Blades Pusher Type
Intake / Exhaust Valve Gap - 0.006-0.010 in (0.1-0.25 mm)
Fuel Injection Pressure - 1711-1842 psi (11.8-12.8 MPa)
Compression Pressure at 250 rpm - 498±15 psi (3.43±0.1MPa)
Thermostat - Valve Opening Temperature
Electrical System
Starter - 1.2kW (12-Volt)
Charging System - Alternator, 40 amp
Battery - 500 CCA (cold cranking amps)
12-Volt Outlet - Maximum 15 amp
Electric Starting - Starter
Alternator - DC12V
Battery Capacity - 12V, 36 Amp-Hour (5h rating)
John Deere X748 Transmission
Transmission Type - Hydrostatic transmission with Twin Touch foot pedals
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)
JD X748 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
Mechanical
Chassis - Four Wheel Drive
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, 6-Position tilt steering wheel
Brakes - Internal wet disc
Disc Brakes - Oil immersed
JD X748 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 - 18 x 8.50 - 10, Turf, 4PR / 82-110 kPa (12-16
psi)
Front Tire / Pressure - 18 x 8.50 - 10, HDAP, 4PR / 82-110 kPa (12-16
psi)
Rear Tire / Pressure - 26 x 12.00 - 12, Bar, 4PR / 40-138 kPa (6-20 psi)
Rear Tire / Pressure - 26 x 12.00 - 12, HDAP, 2PR / 40-70 kPa (6-10 psi)
Capacities
Fuel Tank - 24.6L (6.5 gal)
Transaxle (oil change with filter) - 6.6L (7.0 qt)
Cooling System - 2.8L (3.0 qt)
Engine Oil (oil change with filter) - 2.6L (2.75 qt)
Front Drive Axle - 2.4L (2.5 qt)
John Deere X748 Attachments
48X Mower Deck
Type - Mid-Mount, 3-blade
Cutting width - 48 inches (1210 mm)
Weight - 117 lbs (53 kg)
Cut height - 1 to 5.25 inch (20 to 130 mm)
Cut positions - 18
Lift - Hydraulic
54X Mower Deck
Type - Mid-Mount, 3-blade
Cutting width - 54 inches (1370 mm)
Weight - 170 lbs (77 kg)
Overall width - 64.5 inches (1630 mm)
Cut height - 1 to 5.25 inch (20 to 130 mm)
Cut positions - 18
Lift - Hydraulic
62X Mower Deck
Type - Mid-Mount, 3-blade
Cutting width - 62 inches (1570 mm)
Weight - 200 lbs (90 kg)
Cut height - 1 to 5.25 inch (20 to 130 mm)
Cut positions - 18
Lift - Hydraulic
60 Mower Deck
Type - Mid-Mount, 7-Iron, 3-blade
Cutting width - 60 inches (1520 mm)
Weight - 342 lbs (155 kg)
Overall width - 61.3 inches (1550 mm)
Cut height - 1 to 5.25 inch (20 to 130 mm)
Cut positions - 18
Lift - Hydraulic
Loader
Loader type - John Deere 45
Weight - 515 lbs (233 kg)
Height (to pin) - 73 inches (1850 mm)
Clearance, dumped bucket - 57 inches (1440 mm)
Dump reach - 23 inches (580 mm)
Dump angle - 45
Reach at ground - 44.43 inches (1120 mm)
Rollback at ground - 25
Breakout force (lift) - 770 lbs (349 kg)
Breakout force (bucket) - 740 lbs (335 kg)
Lift to full height (at pin) - 365 lbs (165 kg)
Bucket capacity - 0.2 cu yd (0.2 cu m)
Bucket width - 48 inches (1210 mm)
John Deere X748 Dimensions
Overall Height - 127 cm (50.0 in.)
Overall Width - 112 cm (46.8 in.)
Overall Length - 200 cm (78.8 in.)
Wheel Base - 141 cm (55.7 in.)
Net Weight - 505 kg (1113 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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