J.I. Case 630
The J.I. Case 630 is a tractor produced by J I Case. It is equipped with a 188.4 ci 3.1 L engine. The listed engine power is 48.24 hp 36.0 kW. Transmission: Case Dual-Range. Operating weight: 4600 to 4800 pounds.
Engine Power
48.24 hp
36.0 kW
Fuel & Capacities
22 gal
83.3 L
Transmission
Case Dual-Range
Operating Weight
4600 to 4800 pounds
Overview
 | 1960 - 1963
630 SeriesUtility tractor
630 Series
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | J.I. Case |
Utility tractor | |
Factories | Rock Island, Illinois, USA |
Racine, Wisconsin, USA | |
Total built | 1,181 |
Original price | $4,500 |
A high-speed fourth gear was optional in most 630 series transmissions, an H would appear at the end of the model number to inidcate this option. | |
Variants | |
|---|---|
630 | diesel standard |
631 | diesel row-crop |
640 | gas standard |
641 | gas row-crop |
J.I. Case 630 Engine | |
|---|---|
J.I. Case 3.1L 4-cyl diesel | |
Fuel tank | 22 gal
83.3 L |
Engine details ...  | |
J.I. Case 630 Power | |
|---|---|
Belt (claimed) | 50 hp
37.3 kW |
Plows | 4 |
Drawbar (tested) | 43.71 hp
32.6 kW |
PTO (tested) | 48.85 hp
36.4 kW |
Performance test details ...  | |
Mechanical | |
|---|---|
Two-wheel drive | |
Steering | power assist |
Differential mechanical dry disc brakes | |
Open operator station. | |
Hydraulics | |
|---|---|
Type | Dual-Control |
Tractor hitch | |
|---|---|
Type | Case Eagle Hitch |
Power Take-off (PTO) | |
|---|---|
Rear PTO | continuous |
independent (Case-o-matic) | |
Rear PTO Type | 540 (1.375) |
540/1000 (1.375) | |
Dimensions & Tires | |
|---|---|
Weight | 4600 to 4800 pounds |
Front tire | 7.50-16 |
Rear tire | 16.9-28 |
Full dimensions and tires ...  | |
Belt Pulley | |
|---|---|
Diameter | 9.25 inches
23 cm |
Width | 6 inches
15 cm |
Electrical | |
|---|---|
Ground | positive |
Batteries | 2 |
Battery volts | 6 |
References | |
|---|---|
 | |
1960 Progress Parade of Case Farm Equipment published by J.I. Case | |
A Complete New Line of Case Plus-Powered Tractors published in 1960, by J.I. Case |
Engine
Engine Detail — 188.4 ci / 3.1 L Diesel
Manufacturer | J.I. Case |
Fuel Type | Diesel |
Configuration | 4-cylinder, liquid-cooled |
Displacement | 188.4 ci
3.1 L |
Bore/Stroke | 3.8125x4.125 inches
97 x 105 mm |
Compression | 17.5:1 |
Rated RPM | 2250 |
Starter volts | 12 |
Transmission
Transmission options | |
|---|---|
8-speed torque converter | |
12-speed | |
8-speed | |
4-speed gear |
Transmission — Case Case-o-matic
Transmission | Case Case-o-matic |
Type | torque converter |
Gears | 8 forward and 2 reverse |
Clutch | hydraulic wet disc |
Tractors equipped with the Case-o-Matic were sometimes referred to as the 630C. | |
Transmission — Case Tripl-Range
Transmission | Case Tripl-Range |
Gears | 12 forward and 3 reverse |
Clutch | dry disc |
Transmission — Case Dual-Range
Transmission | Case Dual-Range |
Gears | 8 forward and reverse |
Clutch | dry disc |
Transmission — 4 forward and 1 reverse gear
Type | gear |
Gears | 4 forward and 1 reverse |
Clutch | dry disc |
 | |
Dimensions
J.I. Case 630 Tires | |
|---|---|
Ag front | 7.50-16 |
Ag rear | 16.9-28 |
Dimensions | |
|---|---|
Front tread | 52 inches
132 cm |
Rear tread | 48 to 76 inches
121 to 193 cm |
J.I. Case 630 Weight | |
|---|---|
Operating | 4,600 lbs
2086 kg |
4,800 lbs (Case-o-Matic)
2177 kg | |
Ballasted | 9,725 lbs
4411 kg |
Tests
Tractor Tests | |
|---|---|
NTTL 787: diesel Case-O-Matic 2WD | |
NTTL 788: diesel 12-speed 2WD |
Nebraska Tractor Test 787 | |
|---|---|
Diesel Case-O-Matic 2WD
April 7 - 21, 1961
Link: Nebraska Tractor Test 787 file | |
PTO performance | |
Power at rated engine speed | 48.85 hp
36.4 kW |
Fuel use | 3.9 gal/hour
14.8 l/hour |
Power at rated PTO speed | 45.24 hp
33.7 kW |
Fuel use | 3.5 gal/hour
13.2 l/hour |
Drawbar performance | |
Max power | 43.71 hp
32.6 kW |
Gear 5 used for power test. | |
Max pull | 7,190 lbs
3261 kg |
Gear 1 used for pull test. | |
Nebraska Tractor Test 788 | |
|---|---|
Diesel 12-speed 2WD
April 10 - 22, 1961
Link: Nebraska Tractor Test 788 file | |
PTO performance | |
Power at rated engine speed | 48.24 hp
36.0 kW |
Fuel use | 3.3 gal/hour
12.5 l/hour |
Power at rated PTO speed | 47.40 hp
35.3 kW |
Fuel use | 3.2 gal/hour
12.1 l/hour |
Drawbar performance | |
Max power | 40.68 hp
30.3 kW |
Fuel use | 3.2 gal/hour
12.1 l/hour |
Gear 7 used for power test. | |
Max pull | 6,987 lbs
3169 kg |
Gear 1 used for pull test. | |
Recommended Implements & Sizing Guide
Engineering recommendations for J I Case J.I. Case 630 based on its 48.24 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm) | Medium Duty | Standard utility farm tillage. |
Rotary Cutter / MowerMowing & Clearing | 6 ft (72 in)1.8 m | Medium Duty | Medium pasture clearing; rear slip-clutch recommended. |
Rotary TillerSeedbed Prep | 66 to 72 in165 - 180 cm | Medium Duty | Standard utility tiller; slip clutch protection required. |
Disc HarrowSecondary Tillage | 7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙 | Medium Duty | Field leveling and clod breaking behind plows. |
Hay BalerHay & Forage | Small Square Baler (14x18")小方捆打捆机 (36x46 cm) | Medium Duty | Classic 2-string baler for horse and small livestock hay. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for J I Case J.I. Case 630.
Estimated Continuous Field Runtime: 8.8 hrs
Approximately 8.8 hours of continuous field operation at ~75% rated power on a full tank (22 gal / 83.3 L).
Estimated 75% Load Fuel Burn~2.5 gal/hr (9.5 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
J I Case J.I. Case 630 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for J I Case J.I. Case 630.
Converted Equivalents:
Horsepower (HP)48.2 hp
Kilowatts (kW)36 kW
Metric Horsepower (PS / CV)48.9 PS
Direct Competitor Comparison
Compare J.I. Case 630 against same-era industry alternatives in the same horsepower class.
Current Model
J I Case
J.I. Case 630
Engine Power:48.24 hp
36.0 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 500
Engine Power:43.5
Production Years:1965 - 1969
Related models
J.I. Case D
- Power:
- 38.9
- Production years:
- 1939 - 1953
J.I. Case 310E
- Power:
- 40
- Production years:
- 1961 - 1962
J.I. Case CF 400
- Power:
- 40
- Production years:
- 1967 - 1977
J.I. Case 310-B
- Power:
- 41.1
- Production years:
- 1958 - 1959
J.I. Case 311-B
- Power:
- 41.1
- Production years:
- 1958 - 1959