The John Deere 4630 epitomizes 1970s tractor innovation, boasting robust power, mechanical reliability, and operator comfort. Its turbocharged diesel engine, versatile transmission options, and advanced hydraulic system ensure efficiency and performance in the field. Equipped with features like power steering and a Sound-Gard cab, it prioritizes operator comfort and safety. Whether tackling tough terrain or handling various implements, the 4630 offers precision and power, making it a staple on farms across America. As a collectible, it symbolizes a significant era in agricultural history, cherished for its contribution to farming excellence and its enduring legacy of reliability and durability.
| John Deere 4630 Tractor Specifications |
|---|
| Type | Row-Crop tractor |
| Built in | Waterloo, Iowa, USA |
| Original Price (1977) | $27,080 |
| Power |
|---|
| PTO (claimed) | 150 hp (111.9 kW) |
| Drawbar (tested) | 127.92 hp (95.4 kW) |
| PTO (tested) | 150.66 hp (112.3 kW) |
| Mechanical |
|---|
| Drive | 4×2 2WD, 4×4 HFWD 4WD |
| Final Drives | Planetary |
| Differential Lock | Hydro-mechanical rear |
| Engine Specs |
|---|
| Engine Model | John Deere |
| Engine Type | Six-cylinder direct injection turbocharged diesel |
| Displacement | 404 cu in (6.60 L) |
| Bore/Stroke | 4.25×4.78 inches (108.0×121.0 mm) |
| Aspiration | Turbocharged |
| Rated Engine Power | 166 hp (123.0 kW) @ 2200 rpm |
| Compression | 16.0:1 |
| Fuel System | Direct injection |
| Air Cleaner | Dry with secondary element |
| Fuel Tank Capacity | 65 gal (246.0 L) |
| Oil Capacity | 17 qts (16.0 L) |
| Coolant Capacity | 30 qts (28.5 L) |
| Electrical System Rating | 12 Volts |
| Charging System | Alternator, 37/55 Amps |
| Power Take-Off (PTO) |
|---|
| PTO Operational Type | Independent |
| PTO Horsepower | 150 hp (112.0 kW) |
| PTO Speed | 1000 rpm |
| PTO / Engine Speed | 1000/2200 rpm |
| PowerShift Transmission |
|---|
| Gearbox Type | 8F/4R, Full power shift |
| Forward Gears | 8 |
| Reverse Gears | 4 |
| Maximum Forward Speed | 17.7 mph (28.5 kph) |
| Maximum Reverse Speed | 6.0 mph (9.5 kph) |
| Clutch | Hydraulic wet disc |
| Oil Capacity | 40 qts (38.0 L) |
| Syncro Range Transmission |
|---|
| Gearbox Type | 8F/2R, Partially synchronized |
| Forward Gears | 8 |
| Reverse Gears | 2 |
| Maximum Forward Speed | 18.8 mph (30.2 kph) |
| Maximum Reverse Speed | 6.6 mph (10.6 kph) |
| Clutch Type | Hydraulic wet disc |
| Oil Capacity | 44 qts (41.5 L) |
| Quad-Range Transmission |
|---|
| Gearbox Type | 16F/6R, Partial powershift |
| Forward Gears | 16 |
| Reverse Gears | 6 |
| Maximum Speed (Forward) | 17.7 mph (28.6 kph) |
| Maximum Speed (Reverse) | 11.2 mph (18.0 kph) |
| Clutch | Hydraulic wet disc |
| Oil Capacity | 44 qts (41.5 L) |
| Wheels and Tires |
|---|
| Drive Wheels | 2WD/4WD |
| Steering Configuration | Front Steer |
| Steering System | Power |
| Front Tire Size | 10.0×16 |
| Rear Tire Size | 18.4×38 |
| Rear Track Width | 60-90 inches (1520-2280 mm) |
| Hydraulics and Hitch |
|---|
| Hydraulic System Type | Closed center |
| Implement Pump Flow | 22 gpm (83.5 Lpm) |
| Hydraulic Pressure | 155 Bar (2250 psi) |
| Hydraulic Capacity | 11 gal (42.0 L) |
| Number of Standard Remote Valves | 1/3 |
| 3-Point Hitch Category | 3/3N |
| Rear Lift Capacity | 5260 lbs (2385 kg) |
| Dimensions and Weight |
|---|
| Wheelbase | 112 inches (2840 mm) |
| Length | 162 inches (4100 mm) |
| Overall Width | 91 inches (2300 mm) |
| Height (ROPS) | 110 inches (2780 mm) |
| Height (Cab) | 127 inches (3210 mm) |
| Operating Weight | 16250 lbs (7370 kg) |
John Deere 4630 Overview
The John Deere 4630, a member of the Generation II Series, epitomizes the pinnacle of tractor technology during the 1970s. Proudly manufactured in Waterloo, Iowa, USA, this row-crop tractor boasts impressive power and mechanical prowess. Its robust engine, a turbocharged six-cylinder diesel, delivers a claimed 150 horsepower, ensuring formidable performance in the field. Equipped with PowerShift transmission, offering 8 forward and 4 reverse gears, or optionally available with Syncro Range or Quad-Range transmissions, it provides versatility and precision for various tasks. The inclusion of hydro-mechanical rear differential lock and differential hydraulic wet disc brakes enhances traction and safety, especially in challenging terrains.
The John Deere 4630’s mechanical design exudes reliability and efficiency. Its planetary final drives and power steering system contribute to smooth operation and maneuverability, reducing operator fatigue during long working hours. The tractor’s Sound-Gard cab, complete with air-conditioning as standard, offers a comfortable and ergonomic workspace, shielding the operator from noise and adverse weather conditions. This attention to operator comfort and safety underscores John Deere’s commitment to enhancing the user experience.
Hydraulically, the 4630 is a workhorse, featuring a closed-center hydraulic system with ample pump flow and pressure for powering implements. With its impressive rear lift capacity of 5260 lbs and multiple standard remote valves, it accommodates a wide range of implements and attachments, making it indispensable on the modern farm. Additionally, its 2WD/4WD drive configuration, coupled with front steer and power steering, ensures superior control and traction, enabling precise maneuvering and minimizing soil compaction.
For collectors and enthusiasts, the John Deere 4630 represents a cherished piece of agricultural history. Its iconic design, coupled with its significant role in shaping farming practices during the 1970s, makes it a highly sought-after collectible. The tractor’s enduring legacy as a symbol of American ingenuity and progress further adds to its appeal. Whether in the field or on display, the John Deere 4630 continues to captivate audiences with its blend of power, performance, and nostalgia, reminding us of a bygone era of farming excellence.v
