| Manufacturer |
J.I. Case |
| Price |
8,400(USD) |
| Model |
870 |
| Equipment Type |
- |
| Factory |
Racine, Wisconsin, USA |
NEBRASKA TRACTOR TEST 1030
| Description |
Diesel 12-speed 2WD November 10 - 19, 1969 Link: Nebraska Tractor Test 1030 file PTO performance Drawbar performance Gear 2-High used for power test |
| Power at rated engine speed |
70.53hp / 52.6kW |
| Fuel use |
4.7gal/hour / 17.8l/hour |
| Max power |
61.38hp / 45.8kW |
NEBRASKA TRACTOR TEST 1031
| Description |
Diesel 8-speed 2WD November 10 - 20, 1969 Link: Nebraska Tractor Test 1031 file PTO performance Drawbar performance Gear 4-Low used for power test |
| Power at rated engine speed |
70.67hp / 52.7kW |
| Fuel use |
4.3gal/hour / 16.3l/hour |
| Max power |
61.77hp / 46.1kW |
NEBRASKA TRACTOR TEST 1059
| Description |
Gasoline 12-speed 2WD October 28 - November 17, 1970 Link: Nebraska Tractor Test 1059 file PTO performance Drawbar performance Gear 2-High used for power test |
| Power at rated engine speed |
70.67hp / 52.7kW |
| Fuel use |
6.1gal/hour / 23.1l/hour |
| Max power |
58.03hp / 43.3kW |
NEBRASKA TRACTOR TEST 1060
| Description |
Gasoline 8-speed 2WD October 28 - November 7, 1970 Link: Nebraska Tractor Test 1060 file PTO performance Drawbar performance Gear 4-Low used for power test |
| Power at rated engine speed |
71.06hp / 53.0kW |
| Fuel use |
6.2gal/hour / 23.5l/hour |
| Max power |
62.52hp / 46.6kW |
NEBRASKA TRACTOR TEST 1076
| Description |
Diesel (2000 rpm) 12-speed 2WD//Link: Nebraska Tractor Test 1076 file/PTO performance/Drawbar performance/Gear 3-Low used for power test. |
| Power at rated engine speed |
77.92hp / 58.1kW |
| Fuel use |
5.5gal/hour / 20.8l/hour |
| Power at rated PTO speed |
77.11hp / 57.5kW |
| Max power |
66.89hp / 49.9kW |
NEBRASKA TRACTOR TEST 1077
| Description |
Diesel (2000 rpm) 8-speed 2WD/September 12 - 24, 1971/Link: Nebraska Tractor Test 1077 file/PTO performance/Drawbar performance/Gear 4-Low used for power test. |
| Power at rated engine speed |
77.45hp / 57.8kW |
| Fuel use |
5.2gal/hour / 19.7l/hour |
| Power at rated PTO speed |
76.63hp / 57.1kW |
| Max power |
69.04hp / 51.5kW |
NEBRASKA TRACTOR TEST 1149
| Description |
Diesel (2100 rpm) 8-speed 2WD/October 22 - 31, 1973/Link: Nebraska Tractor Test 1149 file/PTO performance/Drawbar performance/Gear 4-Low used for power test. |
| Power at rated engine speed |
80.20hp / 59.8kW |
| Fuel use |
5.6gal/hour / 21.2l/hour |
| Power at rated PTO speed |
77.93hp / 58.1kW |
| Max power |
69.53hp / 51.8kW |
NEBRASKA TRACTOR TEST 1150
| Description |
Diesel 12-speed 2WD October 26 - November 6, 1973 Link: Nebraska Tractor Test 1150 file PTO performance Drawbar performance Gear 3-Low used for power test |
| Power at rated engine speed |
80.49hp / 60.0kW |
| Fuel use |
6.0gal/hour / 22.7l/hour |
| Power at rated PTO speed |
76.52hp / 57.1kW |
| Max power |
68.90hp / 51.4kW |
J.I. CASE 870 POWER
| Drawbar (claimed) |
62hp / 46.2kW |
| PTO (claimed) |
71hp / 52.9kW |
| Drawbar (tested) |
69.53hp / 51.8kW |
| PTO (tested) |
80.49hp / 60.0kW |
ENGINES OVERVIEW
The J.I. Case 870 tractor features either a 5.5L 4-cylinder diesel or a 4.9L 4-cylinder gasoline engine, offering versatile fuel options tailored for different operational preferences. The diesel variant provides better torque and fuel efficiency, ideal for heavy-duty applications, while the gasoline model may offer easier maintenance and lower initial costs. However, operators should consider the specific fuel availability and running costs, as diesel engines typically require more robust handling and maintenance practices.
| Description |
J.I. Case 5.5L 4-cyl diesel J.I. Case 4.9L 4-cyl gasoline |
ENGINE DETAIL 1
The J.I. Case 870 features a robust 5.5L diesel engine with a high compression ratio of 16.5:1, optimizing fuel efficiency and torque output for heavy-duty tasks. With three rated RPM options (1900, 2000, and 2100), this tractor can adapt to various operational demands for both low and high-speed applications. Challenges may include the cooling system's capacity of 28 quarts, which necessitates regular maintenance to prevent overheating during extended use.
| Description |
J.I. Case diesel 4-cylinder liquid-cooled |
| Displacement |
336ci / 5.5L |
| Bore/Stroke |
4.625x5.00inches / 117x 127 mm |
| Compression |
16.5:1 |
| Rated RPM |
1900 (early)/2000 (mid)/2100 (late) |
| Starter volts |
12 |
| Coolant capacity |
28qts / 26.5L |
ENGINE DETAIL 2
The J.I. Case 870 tractor features a 4-cylinder, 4.9L gasoline engine with a modest 7.5:1 compression ratio, which contributes to lower power output but enhances fuel efficiency at rated RPMs of 1900. Its paper element air cleaner with a pre-cleaner is advantageous for maintaining engine longevity by reducing particulate intake. However, the heavier bore/stroke ratio could lead to increased wear over time in demanding conditions, necessitating regular maintenance to ensure optimal performance.
| Description |
J.I. Case gasoline 4-cylinder liquid-cooled |
| Displacement |
301ci / 4.9L |
| Bore/Stroke |
4.375x5.00inches / 111x 127 mm |
| Air cleaner |
paper element with pre-cleaner |
| Compression |
7.5:1 |
| Rated RPM |
1900 |
| Starter volts |
12 |
J.I. CASE 870 ENGINES
The J.I. Case 870 tractor is powered by either a 5.5L diesel or a 4.9L gasoline engine, providing flexibility in fuel choice; the diesel option generally offers better torque and efficiency, suitable for heavier applications. With a substantial 50-gallon fuel tank, the tractor ensures extended operational periods, beneficial for large-scale farming scenarios. However, operators should consider weight distribution and fuel availability based on the selected engine type, as the diesel engine may present higher fuel costs compared to gasoline.
| Description |
J.I. Case 5.5L 4-cyl diesel J.I. Case 4.9L 4-cyl gasoline |
| Fuel tank |
50gal / 189.3L |
TRANSMISSIONS OVERVIEW
The J.I. Case 870 tractor features an 8-speed unsynchronized gearbox, which can present challenges in shifting under load, particularly for novice operators. However, its 12-speed partial power shift offers smoother transitions and improved adaptability in varying field conditions, enhancing operational efficiency. This combination makes it suitable for both novice and experienced operators, particularly in tasks that require varying speeds like towing and tilling.
| Description |
8-speed unsynchronized gear 12-speed partial power shift |
TRANSMISSION 1
The J.I. Case 870 tractor features an unsynchronized 8-speed forward and 2-speed reverse gear system, which can limit operator efficiency during gear changes, particularly under load or when shifting between forward and reverse. The 304.8mm dry disc clutch offers durability but may require more effort to engage compared to hydraulic alternatives, potentially leading to increased operator fatigue during prolonged use. Its mechanical simplicity can lead to easier maintenance and lower repair costs in a farm setting, making it suitable for light to moderate agricultural tasks.
| Type |
unsynchronized gear |
| Gears |
8 forward and 2 reverse |
| Clutch |
304.8mm dry disc |
TRANSMISSION 2
The J.I. Case 870 tractor features a partial power shift transmission with 12 forward and 4 reverse gears, allowing for versatile speed and torque management during varying field tasks. The hydraulic wet disc clutch enhances durability and provides smoother engagement, reducing wear during frequent shifting. Ideal for applications requiring quick direction changes, it offers efficient performance but may be complex to repair if hydraulic components fail.
| Transmission |
Range Power Shift |
| Type |
partial power shift |
| Gears |
12 forward and 4 reverse |
| Clutch |
hydraulic wet discs |
| Description |
Four gears each with reverse and a three-speed forward powershift. |
MECHANICAL
The J.I. Case 870 tractor features a 4x2 2WD chassis, making it suitable for flat terrain but limiting off-road capabilities compared to 4WD models. Its power steering enhances maneuverability, while differential hydraulic dry disc brakes improve stopping efficiency, albeit with potential challenges in muddy conditions. The 8-speed unsynchronized and 12-speed partial power shift transmissions provide versatility in speed selection, beneficial for diverse agricultural applications, but operators may need time to adapt to the shifting dynamics.
| Chassis |
4x2 2WD |
| Steering |
power |
| Brakes |
differential hydraulic dry disc |
| Cab |
Cab optional |
| Transmissions |
8-speed unsynchronized gear/12-speed partial power shift |
HYDRAULICS
| Pump flow |
16gpm / 60.6lpm |
| Total flow |
24gpm / 90.8lpm |
| Steering flow |
8 gpm /30.3 lpm |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
540 (1.375)/540/1000 (1.375) |
| Engine RPM |
540@1900 / 1000@1900 |
J.I. CASE 870 TIRES
The J.I. Case 870 tractor features agricultural tires with a front size of 7.50-16 and a rear size of 18.4-34, providing a balanced configuration for fieldwork and traction on varied terrains. The larger rear tires enhance grip and stability, allowing for effective plowing and towing capabilities, especially in soft or muddy conditions. However, the front tire's relatively smaller size may limit steering precision under heavy loads, potentially impacting maneuverability in tight spaces.
| Ag front |
7.50-16 |
| Ag rear |
18.4-34 |
DIMENSIONS
| Wide-front Wheelbase |
101inches / 256cm |
| Tricycle Wheelbase |
94inches / 238cm |
| Length |
153inches / 388cm |
| Height (hood) |
67inches / 170cm |
| Weight |
9,200lbs / 4173kg |
| Ground clearance |
15inches / 38cm |
DIMENSIONS & TIRES
The J.I. Case 870 tractor features a wide-front wheelbase of 101 inches, enhancing stability during operation on uneven terrain, particularly beneficial for plowing and heavy-duty tasks. Its tricycle wheelbase option of 94 inches allows for a tighter turning radius, which is advantageous in smaller fields or orchards. Weighing 9,200 lbs with front tires of 7.50-16 and rear tires of 18.4-34, it delivers substantial traction but may pose challenges in transport due to its weight and tire size, impacting compatibility with standard trailers.
| Wide-front Wheelbase |
101inches / 256cm |
| Tricycle Wheelbase |
94inches / 238cm |
| Weight |
9,200lbs / 4173kg |
| Front tire |
7.50-16 |
| Rear tire |
18.4-34 |
870 SERIAL NUMBERS
| 1970 |
8650001 |
| 1971 |
8674001 |
| 1972 |
8691801 |
| 1973 |
8712001 |
| 1974 |
8736601 |
| 1975 |
8770001 |
