Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere X738 Specs

John Deere X738 Engine Specifications

Manufacturer - Kawasaki
Engine Model - FD750D
Cylinders - Two
Cycle - Four
Engine Type - 4-stroke, OHV, V-twin 90°
Max. horsepower - 27.3 PS (20.1 KW; 27.0 HP) at 3,600 rpm
Max. torque (crank PTO) - 58.3 Nm (43.0 ft-lb) at 2,400 rpm
Displacement - 745 cc (45.5 in3)
Bore/Stroke - 78 mm (3.07 in)
Compression Ratio - 8.5:1
Oil Filter - Full flow (replacement)
Air Cleaner - Dual element replaceable paper
Cooling System - Liquid-cooled
Fuel Filter - Replaceable - paper element
Fuel Pump - Electric
Fuel Delivery - Fuel Injected
Carburetor - Float type carburetor with fixed main jet
Ignition system - Transistorized ignition
Lubricating system - Pressurized lubrication system
Fuel used - Unleaded gasoline (octane number 86 or higher)
Fuel consumption - 230 g/HPh
Maximum speed - 3500 ± 100 rpm
Idle speed - 1500 ± 100 rpm
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)
Fuel Tank Capacity - 19.7 L (5.2 gal)
Cooling System Capacity - 4.0 L (4.2 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)
Length, mm (in) - 520 (20.5)
Width, mm (in) - 458 (18.0)
Height, mm (in) - 580 (22.8)
Dry weight, kg (lb) - 57.0 (125.7)

Electrical System

Starting system - Electric starter
Starter - 0.8 kW (12 volt Electric Start)
Charging System - Stator, 20 A
Battery - 300 CCA (cold cranking amps)
12 Volt Outlet - Maximum 15 A

JD X738 Transmission

Transmission Type - 2-Pedal Foot Control Hydrostatic
Transaxle - Tuff Torq K90
Number of Speeds - Infinite
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 (with filter) Capacity - 5.7 L (6.0 qt)
Forward Travel Speeds - 0 to 13.7 km/h (0 to 8.5 mph)
Reverse Travel Speeds - 0 to 8.1 km/h (0 to 5.0 mph)

Power Take-off

Rear PTO - Independent
Rear RPM - 540
Front PTO - Independent
Clutch - Electro-hydraulic

John Deere X738 Mechanical

Chassis - 4x4 4WD
Front axle - JDM nodular iron casting
Spindle bushings - Metal, replaceable
Steering - Hydrostatic power, 6-position tilt steering wheel
Steering wheel - 14 in. (35.6 cm)
Tilt steering wheel - Standard, six position
Brakes - Internal wet disc

JD X738 Tire Sizes

Front Tire Tubeless 18x8.50-10, Turf, 4PR
Front Tire Tubeless 18x8.50-10, HDAP, 4PR
Front Tire Pressures - 69-103 kPa (0.69-1.03 bar) (10-15 psi)
Rear Tire Tubeless 26x12.00-12, Bar, 4PR
Rear Tire Tubeless 26x12.00-12, HDAP, 4PR
Rear Tire Pressures - 41-69 kPa (0.41-0.69 bar) (6-10 psi)

John Deere X738 Attachments

48" Mower Deck

Type - Side discharge
Cutting width - 48 in. (122 cm)
Construction - Stamped steel deck shell
Mower deck material - 10 gauge 0.135 in. (3.4 mm)
Mower drive system - Hydraulic clutch, shaft
Mower wheels - Four
Mower wheel adjustment - Spring-loaded pin
Mower level adjustment - Exact Adjust ports and onboard deck-leveling gauge
Front draft arms - Overcenter
Rear draft arms - V-align
Mower wheels rotate - Yes, 90 degrees for easy mower removal
Drive system - Shaft or AutoConnect

54" Mower Deck

Type - Side discharge
Cutting width - 54 in. (137 cm)
Construction - Stamped steel deck shell
Mower deck material - 9 gauge 0.15 in. (0.38 cm)
Mower drive system - Hydraulic clutch, shaft
Mower wheels - Four
Mower wheel adjustment - Spring-loaded pin
Mower level adjustment - Exact Adjust ports and onboard deck-leveling gauge
Front draft arms - Overcenter
Rear draft arms - V-align
Drive system - Shaft or AutoConnect

60" Mower Deck

Type - Side discharge
Cutting width - 60 in. (152 cm)
Construction - Stamped steel deck shell
Mower deck material - 9 gauge 0.15 in. (0.38 cm)
Mower drive system - Hydraulic clutch, shaft
Mower wheels - 4
Mower wheel adjustment - Spring-loaded pin
Mower level adjustment - Exact Adjust ports and onboard deck-leveling gauge
Front draft arms - Overcenter
Rear draft arms - V-align
Drive system - Shaft or AutoConnect

John Deere X738 Optional Attachments

Front blade - 54 inch (1,37 m)
Snow blower - 2-stage, 47 inch (1,2 m)
Snow blower - 2-stage, inch (1,37 m)
Rotary broom - 52 inch (1,32 m)
Rotary broom - 60 inch (1,52 m)
Rotary tiller - 42 inch (1,1 m)
Rotary tiller - 48 inch (1,22 m)

Dimensions and Weight

Overall Height - 134 cm (52.9 in)
Overall Width - 122 cm (48.0 in)
Overall Length - 201 cm (79.2 in)
Wheel base - 141 cm (55.7 in)
Turning radius 64 cm (25 in.)
Weight Full-Time 4WD (HFWD) - 430 kg (947 lb)

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