Ford 6640 tractor specifications

1991 - 1995

1991 - 1995 PowerStar 40 SeriesUtility tractor

Production

Production Manufacturer:Ford
Type:Utility tractor
Factory:Basildon, England
Original price:$33,400 (1998)

Variants

Variants 6640S:8-speed economy
6640SL:12-speed
6640SLE:16-speed premium

Ford 6640 Power

Ford 6640 Power Engine (gross):90.7 hp
67.6 kW
Engine (net):85 hp
63.4 kW
PTO (claimed):76 hp
56.7 kW
Drawbar (tested):67.18 hp
50.1 kW
PTO (tested):77.13 hp
57.5 kW
power test details ...

1991 - 1995

PowerStar 40 Series

Utility tractor

OCED Tractor Test 1657

OCED Tractor Test 1657
Diesel 16x4 4WD April 24 - May 11, 1992 Link: OCED Tractor Test 1657 file
PTO performance
Max power:	77.13 hp 57.5 kW
Fuel use:	4.7 gal/hour 17.8 l/hour
Power at rated engine speed:	76.75 hp 57.2 kW
Fuel use:	4.7 gal/hour 17.8 l/hour
Power at rated PTO speed:	75.63 hp 56.4 kW
Fuel use:	4.5 gal/hour 17.0 l/hour
Drawbar performance
Max power:	67.18 hp 50.1 kW
Fuel use:	4.7 gal/hour 17.8 l/hour
Gear 5-Low used for power test.
Max pull:	10,512 lbs 4768 kg
Gear 2H used for pull test.

Ford 6640 Engine

Ford 6640 Engine Ford 5.0L 4-cyl diesel Fuel tank:25 gal
94.6 L
52.7 gal
199.5 L (ROPS optional)
46.9 gal
177.5 L (cab optional)
Engine details ...

1991 - 1995

PowerStar 40 Series

Utility tractor

Engine Detail

Engine Detail
Ford Genesis
diesel
4-cylinder 8-valve
liquid-cooled
Displacement:	304 ci 5.0 L
Bore/Stroke:	4.40x5.00 inches 112 x 127 mm
Power (gross):	90.7 hp 67.6 kW
Air cleaner:	dual paper elements
Compression:	17.5:1
Rated RPM:	2200
Idle RPM:	725-2375
Torque:	337 lb-ft 457.0 Nm
Torque RPM:	1200
Firing order:	1-3-4-2
Starter volts:	12
Coolant capacity:	15.3 qts 14.5 L
	16.9 qts 16.0 L *With cab
Intake valve clearance:	0.016 inches 0.406 mm (cold)
Exhaust valve clearance:	0.019 inches 0.483 mm (cold)

Engine Oil

Engine Oil

Oil capacity:	12.1 qts 11.5 L

Mechanical

Mechanical Chassis:4x2 2WD
4x4 MFWD 4WD (optional)
Final drives:inboard planetary
Differential lock:mechanical (S)
electro-hydraulic (SL/SLE)
Steering:hydrostatic power
Brakes:mechanical (S)
hydraulic wet disc (SL/SLE)
Cab:Two-post foldable ROPS. Straddle-mount (6640 S) or raised deck (SL/SLE). Comfort Command Cab optional with air-conditioning (SL/SLE).
Transmissions:8-speed constant mesh
16-speed two-speed power shift
12-speed synchronized
16-speed four-speed power shift
Transmission details ...

1991 - 1995

PowerStar 40 Series

Utility tractor

Transmissions overview

Transmissions overview
8-speed constant mesh
16-speed two-speed power shift
12-speed synchronized
16-speed four-speed power shift

Transmission

Transmission
Transmission:	EconoShift
Type:	constant mesh
Gears:	8 forward and 2 reverse
Clutch:	dry disc
Oil capacity:	69.6 qts 65.9 L
Four gears (1-4), plus reverse, in two ranges (L/H). Optional creeper provided a third range. Tractor must be stopped and clutch used to shift gears or range. The eight-speed transmission was only used on the 6640S.

Speeds

Speeds
With 16.9-34 rear tires.

Transmission

Transmission
Transmission:	Dual Power
Type:	two-speed power shift
Gears:	16 forward and 4 reverse
Clutch:	dry disc
Oil capacity:	69.6 qts 65.9 L
Dual Power adds a two-speed power shift between direct drive and the lower Dual Power range to the basic eight-speed transmission. The Dual Power range is engaged by a switch on the dashboard. Dual Power was an option on the 6640S.

Speeds

Speeds
With 16.9-34 rear tires.

Transmission

Transmission
Transmission:	SynchroShift
Type:	synchronized
Gears:	12 forward and reverse
Clutch:	dry disc
Four gears (1-4) in three ranges (L/M/H) with right-hand shuttle lever. Gear shifts are synchronized. Shifts between medium and high ranges are synchronized, but the tractor should be stopped to shift to or from low range. Synchronized shuttle shifting. The 12-speed SynchroShift was standard on the 6640 SL. Dual power was an option with the SynchroShift, turning it into a 24-speed transmission.

Speeds

Speeds
With 16.9-38 rear tires.

Transmission

Transmission
Transmission:	ElectroShift/Pulse Command
Type:	four-speed power shift
Gears:	16 forward and reverse
Clutch:	wet disc
Oil capacity:	64 qts 60.6 L
Four power shift gears arranged in two synchronized ratio groups (1-4 and 5-8). Two synchronized ranges (low/high) and right-hand shuttle. Clutch must be used to shift range or move between the lower (1-4) and higher (5-8) gear ratio groups. Push-button power shifting between the four gears in a ratio group. Push-button de-clutching on the shuttle lever allow shifting without the foot clutch. The 16 power shift was standard on the 6640 SLE.

Speeds

Speeds
With 16.9-38 rear tires.

Hydraulics

Hydraulics Type:open center (S/SL)
closed center load sensing (SLE)
Valves:1 to 4
Pump flow:18.2 gpm
68.9 lpm
21 gpm
79.5 lpm (SLE)
Steering press.:2100 psi
144.8 bar

Tractor hitch

Tractor hitch Rear Type:II
Control:Position control and top-link draft sensing. Electronic lower-link sensing optional on 6640 SLE.
Rear lift (at 24"/610mm):4,200 lbs
1905 kg
4,439 lbs
2013 kg (optional)
6,210 lbs
2816 kg (SLE)
6,564 lbs
2977 kg (SLE optional)

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540
540/1000 (optional)

Dimensions & Tires

Dimensions & Tires Wheelbase:93 inches
236 cm
Weight:7099 to 9121 pounds
Front tire:7.50-16
Rear tire:16.9-30
Full dimensions and tires ...

1991 - 1995

PowerStar 40 Series

Utility tractor

Ford 6640 Tires

Ford 6640 Tires
Ag front:	7.50-16
Ag rear:	16.9-30

Dimensions

Dimensions
Wheelbase:	93 inches 236 cm
Length:	162 inches 411 cm
2WD Width:	77 inches 195 cm
4WD Width:	80 inches 203 cm
2WD Clearance (front axle):	22 inches 55 cm
4WD Clearance (front axle):	20 inches 50 cm

Ford 6640 Weight

Ford 6640 Weight
2WD ROPS Shipping:	7,099 lbs 3220 kg
4WD ROPS Shipping:	8,091 lbs 3670 kg
2WD Cab Shipping:	8,129 lbs 3687 kg
4WD Cab Shipping:	9,121 lbs 4137 kg
Operating:	8,135 lbs 3690 kg (4WD ROPS)
Ballasted:	10,368 lbs 4702 kg

Ford 6640 Height

Ford 6640 Height
Hood:	67 inches 170 cm
Cab:	107 inches 271 cm
Exhaust:	112 inches 284 cm

Ford 6640 attachments

Ford 6640 attachments front-end loader Attachment details ...

1991 - 1995

PowerStar 40 Series

Utility tractor

Ford 7411 Loader

Ford 7411 Loader
Height (to pin):	134 inches 340 cm
Clearance, dumped bucket:	99 inches 251 cm
Dump reach:	48 inches 121 cm
Breakout force (lift):	5265 lbs 2388 kg
Lift to full height (at pin):	3050 lbs 1383 kg

6640 Serial Numbers

6640 Serial Numbers Location:Data plate inside hood.
1991:BC68791
1992:BD02865
1993:BD35935
1994:BD65544
1995:BD98440
1996:021630B
1997:056502B
1998:083503B

how to read serial numbers...