| Manufacturer |
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 is equipped with either a 5.5L 4-cylinder diesel engine or a 4.9L 4-cylinder gasoline engine, offering flexibility in fuel choice. The diesel variant typically provides better torque for heavy-duty tasks and improved fuel efficiency, making it ideal for agricultural applications requiring sustained power. Conversely, the gasoline engine may offer easier starting and lower operational costs in lighter-duty scenarios, but will likely perform less efficiently under heavy loads.
| Description |
J.I. Case 5.5L 4-cyl diesel J.I. Case 4.9L 4-cyl gasoline |
ENGINE DETAIL 1
The Case 870 tractor features a robust 4-cylinder diesel engine with a displacement of 336 ci (5.5L) and a high compression ratio of 16.5:1, providing excellent torque and fuel efficiency for agricultural tasks. Its bore and stroke dimensions enhance power delivery, while the graduated RPM ratings (1900-2100) allow for versatility in operation across varying load demands. Key considerations include the 12-volt starter system for reliable ignition and a coolant capacity of 28 qts, which ensures optimal engine temperature management 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 Case 870 tractor features a 301ci (4.9L) gasoline engine with a 7.5:1 compression ratio, delivering optimal performance at 1900 RPM. Its paper element air cleaner with pre-cleaner enhances engine longevity by reducing airborne contaminants. While the 4-cylinder configuration offers good torque for medium-duty applications, fuel efficiency may be a challenge in comparison to modern diesel alternatives.
| 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 Case 870 tractor features a robust J.I. Case 5.5L diesel engine and an alternative 4.9L gasoline engine, providing flexibility for different fuel preferences or availability. Its 50-gallon (189.3L) fuel tank ensures extended operational capacity, making it suitable for large-scale farming tasks without frequent refueling. Challenges may arise in terms of serviceability and engine cooling, particularly for the diesel variant under heavy load scenarios.
| 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 Case 870 tractor features an 8-speed unsynchronized transmission, which may limit shifting efficiency under load, but simplifies operation for users familiar with basic mechanics. The 12-speed partial power shift offers smoother transitions and enhanced versatility for various field conditions, allowing for improved torque management. Users should consider the gear shifting skill required and the operational demands of their tasks when selecting between these transmission types.
| Description |
8-speed unsynchronized gear/12-speed partial power shift |
TRANSMISSION 1
The Case 870 tractor features an unsynchronized transmission with 8 forward and 2 reverse gears, which may impact shifting smoothness and operator ease, particularly when under load. The 304.8mm dry disc clutch offers robust engagement but could require more frequent adjustments and maintenance compared to wet clutches under heavy usage scenarios. Operators should be aware that the combination of these specifications may limit multitasking capabilities during field operations.
| Type |
unsynchronized gear |
| Gears |
8 forward and 2 reverse |
| Clutch |
304.8mm dry disc |
TRANSMISSION 2
The Case 870 tractor features a partial power shift transmission with 12 forward and 4 reverse gears, providing seamless gear changes ideal for varied field operations. The hydraulic wet disc clutch offers improved durability and reduced maintenance compared to traditional clutches, though it may have a higher initial cost. This transmission setup is advantageous for tasks requiring frequent speed adjustments, such as tillage or hauling, but operators must be adept at managing the power shift to maximize efficiency.
| 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 Case 870 tractor features a 4x2 2WD chassis, which provides straightforward maneuverability but may have limited traction in challenging terrain. The optional cab enhances operator comfort, yet the lack of standardization may affect usability in harsh conditions. Its 8-speed unsynchronized gear or 12-speed partial power shift transmission allows for versatile speed control, advantageous for varied agricultural tasks, but may require more skill to operate effectively.
| 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 Case 870 tractor is equipped with AG front tires sized 7.50-16 and rear tires 18.4-34, providing a robust footprint for enhanced traction in agricultural applications. The larger rear tires improve stability and load-bearing capacity, while the front tires facilitate maneuverability. A potential challenge to consider is the compatibility of these tire sizes with specific implements, as well as the tractor's overall weight distribution during operation.
| 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 Case 870 tractor’s wide-front wheelbase of 101 inches provides enhanced stability on uneven terrain, making it suitable for heavier agricultural tasks. Weighing 9,200 lbs allows for better traction, but may hinder mobility in tight spaces. The tire specifications, with wider rear tires, optimize load distribution but can also lead to more compacted soil if used intensively in the same area.
| 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 |
