Engine Specifications
Engine Model – Yanmar 3TNM72
Cylinders – Three
Stroke/Cycle – Four
Displacement – 904 cc (55.2 cu. in.)
Bore – 72 mm (2.8 in.)
Compression Ratio – 23.4:1
Speed (fast idle), no load – 3600 +/- 50 rpm
Speed (slow idle), no load – 1600 +/- 100 rpm
Engine Lubrication – Full Pressure
Oil Filter – Full flow (replaceable)
Air Cleaner – Dual element replaceable paper
Cooling System – Liquid-cooled
John Deere X758 Fuel System (Diesel Models)
Fuel Types (Recommended) – Diesel No. 1 or No. 2 / B5 Bio-Diesel (5%
Blend)
Fuel Pump – Mechanical
Fuel Delivery – In-line indirect injection
Electrical System
Starter – 1.2kW (12-Volt)
Charging System – Alternator, 40 amp
Battery – 500 CCA (cold cranking amps)
12-Volt Outlet – Maximum 15 amp
JD X758 Capacities
Fuel Tank – 19.7 L (5.2 gal)
Two-Wheel Steer Transaxle (with filter) – 6.6 L (7.0 qt)
Four-Wheel Steer Transaxle (with filter) – 5.6 L (6.0 qt)
HFWD System Transaxle (with filter) – 6.8 L (7.2 qt)
Cooling System – 2.8 L (3.0 qt)
Engine Oil (with filter) – 3.2 L (3.4 qt)
Full Time 4WD (HFWD) Front Drive Axle – 5.0 L (5.3 qt)
Drive Train
Transaxle – 2-Pedal Foot Control Hydrostatic
Number of Speeds – Infinite
John Deere X758 PTO Drive Speeds
Mid-mounted PTO – 2000 rpm
Rear PTO (if equipped) – 540 rpm
Travel Speeds
Forward 26” tires – 0 to 13.7 km/h (0 to 8.5 mph)
Reverse 26” tires – 0 to 8.1 km/h (0 to 5.0 mph)
Steering and Brakes
Brakes Type – Internal wet disc
Steering – Hydrostatic power, 6-position tilt steering wheel
JD X758 Dimensions
Overall Height – 1.35 m (53.1 in.)
Overall Width – 1.22 m (48 in.)
Overall Length – 2.01 m (79.2 in.)
Wheel Base – 1.41 m (55.7 in.)
Weight (4WD) – 470 kg (1038 lb)
Sound Measurements
Without mower deck – 89.9 +/- 1 dB(A) at 3625 r/min engine speed
With 48C mower deck – 90.7 +/- 1 dB(A) at 3625 r/min engine speed
With 54HC mower deck – 92.4 +/- 1 dB(A) at 3625 r/min engine speed
With 60HC mower deck – 89.8 +/- 1 dB(A) at 3625 r/min engine speed
Vibration Measurements
Without mower deck – Below 2.5 m/s2
With 48C mower deck – Below 2.5 m/s2
With 54HC mower deck – Below 2.5 m/s2
With 60HC mower deck – Below 2.5 m/s2
Rear three-point hitch mounted attachments
If installed, disconnect front
mounted attachment hydraulic hoses from machine:
– Disconnect front quick hitch angling cylinder hydraulic hoses; or
disconnect snowblower or snowthrower chute rotation hoses.
– Install dust caps on hoses and SCV couplers, and secure hoses to
attachment or machine.
– If installed, turn hydraulic cylinder lockout valve knob
counterclockwise until fully open.
– Pull upper hydraulic control lever backward to fully raise mower deck
lift arms. Rear 3-point hitch will raise at same time.
– Turn mower cutting height knob clockwise to highest position to lock
mower deck lift arms in raised position.
– Turn rear 3-point hitch depth control rod to desired height.