Deutz-Fahr M640 Tractor

Manufacturer	Deutz-Fahr
Price	-
Model	M640
Equipment Type	-
Factory

DEUTZ-FAHR M640 POWER

Engine

171hp / 127.5kW

ENGINE DETAIL

The Deutz-Fahr M640 tractor features a robust 6-cylinder turbocharged diesel engine with a liquid-cooled design, delivering 171 hp and peak power of 181 hp at 2100 RPM. With a torque output of 528.8 lb-ft at just 1000 RPM, it provides strong low-end performance ideal for heavy-duty applications like plowing and towing. The electric starter with a 12-volt system ensures reliable ignition, although operators should consider the potential challenges of maintaining turbocharged components for optimal longevity.

Description	Deutz turbocharged intercooled diesel 6-cylinder 24-valve liquid-cooled
Displacement	369.6ci / 6.1L
Bore/Stroke	3.98x4.96inches / 101x 126mm
Power	171hp / 127.5kW
Maximum Power	181hp / 135.0kW
Rated RPM	2100
Torque	528.8lb-ft / 717.1Nm
Torque RPM	1000
Starter	electric
Starter volts	12

DEUTZ-FAHR M640 ENGINE

The Deutz-Fahr M640 features a robust Deutz 6.1L 6-cylinder diesel engine, delivering high torque output ideal for heavy-duty agricultural tasks. Its efficient fuel consumption is a significant advantage, promoting cost-effectiveness during prolonged operations. However, potential challenges may arise in maintenance, given the complexity of a 6-cylinder system, necessitating skilled technicians for optimal performance.

Description

Deutz 6.1L 6-cyl diesel

TRANSMISSIONS OVERVIEW

The Deutz-Fahr M640 features a 24-speed partial power shift transmission, allowing for efficient gear changes without clutching, enhancing operator control and productivity. The availability of a 40-speed creeper gear enables precise low-speed operations, ideal for tasks such as tilling or planting in tight spaces. However, the complexity of the transmission may lead to increased maintenance needs and a steeper learning curve for new operators.

Description

24-speed partial power shift 40-speed creeper

TRANSMISSION 1

The Deutz-Fahr M640 features a ZF 7200 transmission with a partial power shift, offering 24 gears for enhanced versatility in various field conditions. The wet disc clutch provides smoother engagement and less wear, making it suitable for intensive agricultural applications. However, operators may need training to maximize the benefits of the power shuttle functionality effectively.

Transmission	ZF 7200
Type	partial power shift
Gears	24 forward and reverse
Clutch	wet disc
Description	Four power shift gears in six synchronized ranges with power shuttle

TRANSMISSION 2

The Deutz-Fahr M640 tractor features a ZF creeper transmission, offering a total of 40 forward and reverse gears, which enhances maneuverability in various field conditions. The wet disc clutch system provides smooth engagement and durability, which is advantageous for extensive operation and heavy loads. Ideal for tasks requiring slow, precise control, such as planting or tilling, the creeper option optimizes engine efficiency at low speeds, although it may increase complexity in gear selection.

Manufacturer	ZF
Type	creeper
Gears	40 forward and reverse
Clutch	wet disc
Description	Optional creeper provides an additional four ranges (with four speeds each) to the main transmission

MECHANICAL

The Deutz-Fahr M640 features a robust 4x4 MFWD chassis, enhancing traction on varied terrains, making it ideal for diverse farming applications. The wet disc brakes provide superior stopping power and longevity, while the 24-speed partial power shift transmission allows for versatile speed modulation, with a 40-speed creeper option for precision work in tight spaces. The standard air-conditioned cab improves operator comfort during prolonged use, which is crucial for maintaining productivity in extreme weather conditions.

Chassis	4x4 MFWD 4WD
Steering	power
Brakes	wet disc
Cab	Cab standard with air-conditioning
Transmissions	24-speed partial power shift 40-speed creeper

CAPACITY

Fuel	80.6gal / 305.1L
Hydraulic system	10.6gal / 40.1L

HYDRAULICS

Type	open center load sensing
Capacity	10.6gal / 40.1L
Pressure	2900psi / 200.0bar
Rear valves	4
Pump flow	21.9gpm / 82.9lpm *Open center/31.7gpm / 120.0lpm *Load sensing
Steering flow	11gpm / 41.6lpm
Steering press.	2600psi / 179.3bar

TRACTOR HITCH

Rear Type	III/II
Control	position and draft control
Rear lift	13640lbs / 6187kg 20240lbs / 9180kg
Front Hitch	II
Front lift	8800lbs / 3991kg

POWER TAKE-OFF (PTO)

Rear PTO	independent
Rear RPM	540/1000
Engine RPM	1000@1960
Front PTO	independent
Front RPM	1000

DEUTZ-FAHR M640 TIRES

The Deutz-Fahr M640 features standard agricultural tires with a front dimension of 540/65R28 and a rear dimension of 650/65R38, providing optimal traction and stability for field operations. The larger rear tire size enhances load capacity and improves soil compaction management, making it suitable for heavy-duty tasks. However, operators should monitor tire wear and consider seasonal tire changes to maintain performance across diverse agricultural conditions.

Standard tires (ag)

Front: 540/65R28. Rear: 650/65R38

DIMENSIONS

Wheelbase	109.1inches / 277cm
Length	187.4inches / 475cm
Height (cab)	118.1inches / 299cm
Weight	13160lbs / 5969kg

DIMENSIONS & TIRES

The Deutz-Fahr M640 tractor features a wheelbase of 109.1 inches, providing enhanced stability for heavy-duty tasks, especially in agriculture. Weighing 13,160 lbs, it offers substantial traction with its front tires (540/65R28) and rear tires (650/65R38), making it suitable for field operations and transporting heavy loads. However, the substantial weight can pose challenges in soft soil conditions, potentially leading to soil compaction.

Wheelbase	109.1inches / 277cm
Weight	13160lbs / 5969kg
Front tire	540/65R28
Rear tire	650/65R38

ELECTRICAL

Charging system	alternator
Charging amps	150
Battery volts	12
Battery AH	143/190

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