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New Holland 6640 SL Specifications
The New Holland 6640 SL is a 2WD or 4WD utility tractor from PowerStar 40 series. This model was manufactured from 1996 to 1998. The New Holland 6640 SL driveline consists of 304 cu.in (5 L) Ford Genesis 4-cycle vertical 4-cylinder direct injection naturally aspirated liquid-cooled diesel engine with a rated power of 85 Hp (63.3 kW) and Synchro Shift transmission with 12 forward and 12 reverse gears.
The open center hydraulic system includes a gear pump with rated fluid flow of 9.6 gal/min (36.8 l/min). The New Holland 6640 SL is equipped with a hydrostatic power steering, independent PTO type, hydraulic wet disc brakes, 7.50x16 front tires, and 16.9x30 rear tires. The tractor is compatible with Ford 7210 front-end loader and Ford 7411 front-end loader.
| Engine Specs |
Engine Model ......................... Ford Genesis
Engine Type ......................... 4-stroke 4-cylinder liquid-cooled diesel
Number of Cylinders ......................... Four
Displacement, cu.in (L) ......................... 304 (4.99)
Cylinder Bore, in (mm) ......................... 4.40 (112.0)
Piston Stroke, in (mm) ......................... 5.00 (127)
Aspiration Type ......................... Naturally aspirated
Rated Engine Power, hp (kW) ......................... 85.0 (63.3)
Rated Engine Speed, rpm ......................... 2200
Low Idle Speed, rpm ......................... 725-775
High Idle Speed, rpm ......................... 2295-2375
Compression Ratio ......................... 17.5:1
Firing Order ......................... 1-3-4-2
Fuel System ......................... Direct injection
Lubrication System ......................... Full pressure
Cooling System ......................... Liquid-cooled
Air Cleaner Type ......................... Dual paper elements
Coolant Pump Type ......................... Impeller
Fan Diameter, in (mm) ......................... 18.9 (480)
Valve Clearance (Intake), in (mm) ......................... 0.014-0.018 (0.36-0.46)
Valve Clearance (Exhaust), in (mm) ......................... 0.017-0.021 (0.43-0.53)
Fuel Tank Capacity, gal (L) ......................... 25.0 (94.6)
Coolant Capacity, qts (L) ......................... 15.4 (14.5)
Oil Capacity, qts (L) ......................... 12.2 (11.4)
Electrical System Rating, Volts ......................... 12
Charging System ......................... Alternator
Alternator Rating, Amps ......................... 100/55
| Power Take Off |
PTO Operational Type ......................... Independent
PTO Power, Hp (kW) ......................... 76.0 (56.7)
PTO Speed (Std), rpm ......................... 540
PTO/Engine Speed (Std), rpm ......................... 540/1900
PTO Speed (Opt), rpm ......................... 1000
PTO/Engine Speed (Opt), rpm ......................... 1000/2050
| Transmission |
Transmission Model ......................... Synchro Shift
Transmission Type ......................... Synchronized
Gearbox Type ......................... 12F/12R
Number of Forward Gears ......................... 12
Number of Reverse Gears ......................... 12
Clutch Type ......................... Dry disc
Maximum Forward Speed, mph (kph) ......................... 19.2 (30.9)
Maximum Reverse Speed, mph (kph) ......................... 19.2 (30.9)
| Wheels and Tires |
Wheel Drive System ......................... 2WD/4WD
Steering Configuration ......................... Front Steer
Steering System ......................... Hydrostatic power
Brakes Type ......................... Hydraulic wet disc
Front Tire Size ......................... 7.50x16
Rear Tire Size ......................... 16.9x30
| Hydraulics and Hitch |
Hydraulic System Type ......................... Open center
Implement Pump Type ......................... Gear
Implement Pump Flow, gpm (Lpm) ......................... 9.6 (36.8)
Hydraulic Pressure, Bar (psi) ......................... 176 (2550)
Steering Pump Type ......................... Fixed displacement gear
Steering Pump Flow, gpm (Lpm) ......................... 9.6 (36.5)
Steering Pressure, Bar (psi) ......................... 145 (2100)
Number of Standard Remote Valves ......................... Up to 4 optional
3-Point Hitch Category ......................... 2
Draft Sensing or Lift Control ......................... Position control and top-link draft sensing
Lift Capacity at 24" (0.6m) behind pin, lbs (kg) ......................... 4910 (2227)
Lift Capacity at lift pin, lbs (kg) ......................... 6350 (2880)
| Dimensions and Weight |
Wheel Base (2WD), in (mm) ......................... 92.1 (2340)
Wheel Base (4WD), in (mm) ......................... 93 (2360)
Overall Length (2WD), in (mm) ......................... 158.3 (4020)
Overall Length (4WD), in (mm) ......................... 158.7 (4030)
Height (Hood), in (mm) ......................... 67.3 (1710)
Height (Cab), in (mm) ......................... 107.1 (2725)
Width (2WD), in (mm) ......................... 77.7 (1975)
Width (4WD), in (mm) ......................... 80 (2030)
Ground Clearance (2WD), in (mm) ......................... 21.5 (546)
Ground Clearance (4WD), in (mm) ......................... 20.2 (512)
Turning Radius (2WD, w/o Brakes), in (mm) ......................... 144 (3658)
Turning Radius (4WD, w/o Brakes), in (mm) ......................... 159 (4040)
Weight (2WD, Cab), lbs (kg) ......................... 8130 (3685)
Weight (4WD, Cab), lbs (kg) ......................... 9120 (4135)
Weight (2WD, ROPS), lbs (kg) ......................... 7100 (3220)
Weight (4WD, ROPS), lbs (kg) ......................... 8090 (3668)
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