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Ford 6640 Tractor
The
Ford 6640 is a Powerstar 40 series utility tractor. This model was manufactured
between 1991 and 1995. The Ford 6640 tractor is powered by 304 cubic inches (5
L) Ford Genesis four stroke 4-cylinder liquid-cooled diesel engine with a
maximum power of 85 hp (62.5 kw) at 2200 rev/min.
The Ford 6640 is fitted with 4 transmission options: 8x2 EconoShift
constant mesh transmission, 16x4 Dual power transmission, 12x12 Synchro
shift transmission, and 16x16 Pulse command transmission. The maximum
travel speed (forward/reverse): 19.2 mph (30.9 kph).
The open center hydraulic system includes a gear pump with rated fluid
flow of 9.6 gpm (36.8 lpm). The hydraulic system pressure is 176 bar
(2550 psi). The Ford 6640 is equipped with 7.50x16 front tyres and
16.9x30 rear tyres. The wheel base is 92.1" (2340 mm) for models with
2WD (4x2), and 93" (2360 mm) for models with 4WD (4x4).
Engine Model |
Ford Genesis |
Engine Type |
Four stroke, 4-cylinder liquid-cooled diesel |
Engine Gross Power, hp (kw) |
85.0 (62.5) |
Cylinders |
4 |
Engine Bore, in (mm) |
4.40 (112) |
Engine Stroke, in (mm) |
5.00 (127) |
Displacement, cu.in (L) |
304 (4.99) |
Compression Ratio |
17.5:1 |
Firing Order |
1-3-4-2 |
Low Idle Speed, rpm |
725-775 |
High Idle Speed, rpm |
2295-2375 |
Rated Speed, rpm |
2200 |
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) |
Coolant Pump Type |
Impeller |
Fan Diameter, in (mm) |
18.9 (480) |
Fuel Capacity, gal (L) |
25.0 (94.6) |
Cooling System Capacity, qts (L) |
15.4 (14.5) |
Engine Oil Capacity, qts (L) |
12.2 (11.4) |
Electrical System Rating, Volts |
12 |
Alternator Rating, Amps |
100/55 |
PTO Operational Type |
Independent |
PTO Horsepower, hp (kW) |
76.0 (56.7) |
PTO Gears (Standard), rpm |
540 |
PTO / Engine Speed (Standard), rpm |
540/1900 |
PTO Gears (Optional), rpm |
1000 |
PTO / Engine Speed (Optional), rpm |
1000/2050 |
Transmission Type |
EconoShift |
Gearbox Type |
8F/2R, Constant mesh |
Number of Forward Gears |
8 |
Number of Reverse Gears |
2 |
Clutch Type |
Dry disc |
Oil Capacity, qts (L) |
69.6 (65.9) |
Maximum Forward Speed, mph (kph) |
18.8 (30.3) |
Maximum Reverse Speed, mph (kph) |
9.1 (14.6) |
Transmission Type |
Dual Power |
Gearbox Type |
16F/4R, 2-Speed powershift |
Number of Forward Gears |
16 |
Number of Reverse Gears |
4 |
Clutch Type |
Dry disc |
Oil Capacity, qts (L) |
69.6 (65.9) |
Maximum Forward Speed, mph (kph) |
18.8 (30.3) |
Maximum Reverse Speed, mph (kph) |
9.1 (14.6) |
Transmission Type |
Synchro Shift |
Gearbox Type |
12F/12R, Synchronized |
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) |
Transmission Type |
Electro Shift / Pulse Command |
Gearbox Type |
16F/16R, 4-Speed powershift |
Number of Forward Gears |
16 |
Number of Reverse Gears |
16 |
Clutch Type |
Wet disc |
Oil Capacity, qts (L) |
64.0 (60.6) |
Maximum Forward Speed, mph (kph) |
19.1 (30.7) |
Maximum Reverse Speed, mph (kph) |
19.1 (30.7) |
Drive Wheels |
2WD/4WD |
Steering Configuration |
Front Steer |
Steering System |
Hydrostatic power |
Brakes Type |
Wet disc, hydraulically actuated |
Brake Disc Diameter (overall), in (mm) |
8.8 (224) |
Parking Brake |
Operates on footbrake mechanism |
Front Tire Size |
7.50-16 |
Rear Tire Size |
16.9-30 |
Hydraulic System Type (S/SL) |
Open center |
Implement Pump Type |
Gear |
Implement Pump Flow, gpm (Lpm) |
9.6 (36.8) |
Hydraulic Pressure, Bar (psi) |
176 (2550) |
Hydraulic System Type (SLE) |
Closed centre load sensing |
Implement Pump Type |
Variable displacement piston pump |
Implement Pump Flow, gpm (Lpm) |
20.8 (79.3) |
Hydraulic Pressure, Bar (psi) |
186 (2700) |
Steering Pump Type |
Fixed displacement gear pump |
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 (S/SL) |
Position control and top-link draft sensing |
Draft Sensing or Lift Control (SLE) |
Electronic Draft Control |
Standard Lift Capacity 24 (600mm) behind pin (S/SL), lb (kg) |
4910 (2227) |
Standard Lift Capacity at lift pin (S/SL), lb (kg) |
6350 (2880) |
Standard Lift Capacity 24 (600mm) behind pin (SLE), lb (kg) |
5190 (2350) |
Standard Lift Capacity at lift pin (SLE), lb (kg) |
6713 (3045) |
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 Without Brakes (2WD), in (mm) |
144 (3658) |
Turning Radius Without Brakes (4WD), in (mm) |
159 (4040) |
Weight (2WD, Cab), lb (kg) |
8130 (3685) |
Weight (4WD, Cab), lb (kg) |
9120 (4135) |
Weight (2WD, ROPS), lb (kg) |
7100 (3220) |
Weight (4WD, ROPS), lb (kg) |
8090 (3668) |
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Farm Tractors Technical Specifications |