Allis Chalmers 185 Tractor

Manufacturer Allis Chalmers
Price 18,891(USD)
Model 185
Equipment Type -
Factory

NEBRASKA TRACTOR TEST 1044

Description Diesel 8-speed 2WD May 26 - June 3, 1970 Link: Nebraska Tractor Test 1044 file/PTO performance/Drawbar performance/Gear 2-Hi used for power test./Gear 1-Hi used for pull test.
Power at rated engine speed 74.87 hp / 55.8 kW
Fuel use 5.3 gal/hour / 20.1 l/hour
Power at rated PTO speed 70.72 hp / 52.7 kW
Max power 63.82 hp / 47.6 kW
Max pull 7,568 lbs / 3432 kg

ALLIS CHALMERS 185 POWER

Drawbar (tested) 63.82 hp / 47.6 kW
PTO (tested) 74.87 hp / 55.8 kW

ENGINE DETAIL

The Allis-Chalmers 185 features a robust 301 ci (4.9 L) diesel engine, offering a high compression ratio of 16.25:1, which enhances fuel efficiency and torque at lower RPMs, rated at 2200. The liquid-cooled system with 17 qts coolant capacity aids in maintaining optimal operating temperatures, crucial for prolonged performance under load. However, the engine's complexity with a 1-5-3-6-2-4 firing order may require specific maintenance knowledge, potentially posing a challenge for inexperienced operators.

Description Allis-Chalmers diesel 6-cylinder liquid-cooled
Displacement 301 ci / 4.9 L
Bore/Stroke 3.875x4.25 inches / 98 x 108 mm
Compression 16.25:1
Rated RPM 2200
Firing order 1-5-3-6-2-4
Oil capacity 11 qts / 10.4 L
Coolant capacity 17 qts / 16.1 L

ALLIS CHALMERS 185 ENGINE

The Allis Chalmers 185 features a robust 4.9L 6-cylinder diesel engine, known for its durability and torque characteristics, making it suitable for heavy-duty tasks. One advantage of this engine is its fuel efficiency compared to gas counterparts, allowing for longer operational time under load. However, potential challenges include higher maintenance costs for the diesel system and the need for proper fuel management to avoid performance issues.

Description Allis-Chalmers 4.9L 6-cyl diesel

TRANSMISSION

The Allis Chalmers 185 features a partial power shift transmission with 8 forward and 2 reverse gears, enhancing operational versatility for various tasks. The Allis-Chalmers Power Director system allows for seamless gear changes under load, which can be advantageous for heavy-duty applications but may require more maintenance. With an oil capacity of 27 quarts (25.6 L), adequate lubrication is crucial for optimal performance, necessitating regular checks to prevent overheating and mechanical wear.

Transmission Allis-Chalmers Power Director
Type partial power shift
Gears 8 forward and 2 reverse
Oil capacity 27 qts / 25.6 L

SPEEDS

Description With 18.4-28 rear tires.

MECHANICAL

The Allis Chalmers 185 features a 2WD chassis and an 8-speed partial power shift transmission, offering operators smooth gear transitions suited for various agricultural tasks. The open operator station, with optional ROPS and canopy, enhances visibility and safety but may expose operators to weather conditions. Mechanically, the differential band and disc brake system provides reliable stopping power, although it may require more maintenance compared to hydraulic brakes, especially under extreme operating conditions.

Chassis 4x2 2WD
Steering power
Brakes differential mechanical band and disc
Cab Open operator station. Optional two-post ROPS and canopy.
Transmission 8-speed partial power shift

CAPACITY

Fuel 24.6 gal / 93.1 L
Hydraulic system 6.5 gal / 24.6 L

HYDRAULICS

Type open
Capacity 6.5 gal / 24.6 L
Valves 2
Total flow 20 gpm / 75.7 lpm

TRACTOR HITCH

Rear Type II

POWER TAKE-OFF (PTO)

Rear PTO continuous
Rear RPM 540 / 540/1000 (optional)

ALLIS CHALMERS 185 TIRES

The Allis Chalmers 185 tractor features versatile tire size options, enhancing traction and stability across various agricultural terrains. The front tires, rated at 6.50-16, provide adequate steering control, while the rear tire configurations (13.6-38, 15.5-38, 18.4-28, 18.4-30) allow for customization based on load requirements and field conditions. Key advantages include adaptable weight distribution for improved field performance, but the range of rear tire sizes may necessitate careful selection to optimize power transfer and minimize soil compaction in specific applications.

Ag front 6.50-16
Ag rear 13.6-38 15.5-38 18.4-28 18.4-30

DIMENSIONS

Wheelbase 99.2 inches / 251 cm
Length 158 inches / 401 cm
Width 76.5 inches / 194 cm
Clearance (front axle) 20.5 inches / 52 cm
Clearance (rear axle) 32.9 inches / 83 cm
Front tread 53 to 77 inches / 134 to 195 cm
Rear tread 58 to 93 inches / 147 to 236 cm

ALLIS CHALMERS 185 WEIGHT

Operating 6710 lbs / 3043 kg
Ballasted 8700 lbs / 3946 kg (factory listed)/9400 lbs/4263 kg (Nebraska test)

ALLIS CHALMERS 185 HEIGHT

Steering wheel 76.6 inches / 194 cm
Hood 61.4 inches / 155 cm
Exhaust 95.6 inches / 242 cm

DIMENSIONS & TIRES

The Allis Chalmers 185 tractor features a wheelbase of 99.2 inches, providing stability during operation, especially in tasks requiring maneuverability. Its weight of 6,710 lbs offers a solid groundwork, which enhances traction but may limit mobility on uneven terrain. The combination of front and rear tires (7.50-16 and 16.9-28) allows for effective load distribution and improved performance in both agricultural and industrial applications, though tire replacement can be cost-intensive due to their size.

Wheelbase 99.2 inches / 251 cm
Weight 6710 lbs / 3043 kg
Front tire 7.50-16
Rear tire 16.9-28

185 SERIAL NUMBERS

Location Torque housing
1970 1001
1971 1952
1972 2935
1973 3763
1974 4961
1975 6542
1976 8292
1977 10003
1978 11631
1979 13160
1980 14672
1981 15648
Final 15961

ELECTRICAL

Ground negative
Charging system alternator
Charging amps 55


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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