| Manufacturer |
John Deere |
| Price |
15,000(USD) |
| Model |
4620 |
| Equipment Type |
Row-Crop Tractors |
| Factory |
Waterloo, Iowa, USA |
NEBRASKA TRACTOR TEST 1064 2
| Description |
Diesel PowerShift 2WD April 20 - May 4, 1971 Link: Nebraska Tractor Test 1064 file PTO performance Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
135.62hp / 101.1kW |
| Fuel use |
9.1gal/hour / 34.4l/hour |
| Power at rated PTO speed |
130.79hp / 97.5kW |
| Max power |
110.92hp / 82.7kW |
| Max pull |
14,471lbs / 6564kg |
NEBRASKA TRACTOR TEST 1073 2
| Description |
Diesel SyncroRange 2WD June 16 - 22, 1971 Link: Nebraska Tractor Test 1073 file PTO performance/Drawbar performance Gear 4 used for power test Gear 2 used for pull test |
| Power at rated engine speed |
135.76hp / 101.2kW |
| Fuel use |
9.1gal/hour / 34.4l/hour |
| Power at rated PTO speed |
130.27hp / 97.1kW |
| Max power |
115.75hp / 86.3kW |
| Max pull |
13,916lbs / 6312kg |
JOHN DEERE 4620 POWER
| PTO (claimed) |
135hp / 100.7kW |
| Drawbar (tested) |
115.75hp / 86.3kW |
| PTO (tested) |
135.76hp / 101.2kW |
ENGINE DETAIL
The John Deere 4620 features a robust 404ci (6.6L) intercooled turbocharged diesel engine, delivering a high compression ratio of 16.4:1, which enhances thermal efficiency and power output at rated RPMs of 2200. Its dry air cleaner design ensures minimal maintenance and prolongs engine life, while the coolant capacity of 28 quarts helps maintain optimal operating temperatures, highlighting the importance of regular monitoring to prevent overheating during intensive fieldwork. However, the 16-quart oil capacity necessitates diligent oil changes to safeguard engine integrity, especially in heavy-duty applications.
| Description |
John Deere intercooled turbocharged diesel 6-cylinder liquid-cooled |
| Displacement |
404ci / 6.6L |
| Bore/Stroke |
4.25x4.75inches / 108x 121mm |
| Air cleaner |
dry with safety element |
| Compression |
16.4:1 |
| Rated RPM |
2200 |
| Idle RPM |
800-2200 |
| Operating RPM |
1500-2200 |
| Firing order |
1-5-3-6-2-4 |
| Starter volts |
12 |
| Oil capacity |
16qts / 15.1L |
| Coolant capacity |
28qts / 26.5L |
JOHN DEERE 4620 ENGINE
The John Deere 4620 features a robust 6.6L 6-cylinder diesel engine, offering high torque output for demanding agricultural tasks, enabling efficient plowing and heavy lifting. Its powertrain is complemented by a hydrostatic transmission, providing exceptional maneuverability, though it may present challenges in maintenance due to its complexity. Ideal for mid-sized farms, this model balances power and versatility, though fuel consumption should be monitored to optimize operational costs.
| Description |
John Deere 6.6L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The John Deere 4620 features an 8-speed partially synchronized transmission, providing smooth gear transitions for moderate applications, and an 8-speed full power shift option, allowing for on-the-go shifting without losing engine power. This versatility enhances productivity in varied operational scenarios, although the complexity of the full power shift may require additional training for operators. Ensure regular maintenance to maximize transmission lifespan and performance efficiency.
| Description |
8-speed partially synchronized 8-speed full power shift |
TRANSMISSION 1
The John Deere 4620 features a partially synchronized John Deere Syncro-Range transmission with 8 forward and 2 reverse gears, providing versatile speed options for various agricultural tasks. The 14.75-inch dry disc clutch offers reliable engagement and disengagement, although it may require more frequent maintenance compared to hydraulic systems. With an oil capacity of 64 quarts, proper lubrication is essential for optimal performance, especially under heavy-duty use.
| Transmission |
John Deere Syncro-Range |
| Type |
partially synchronized |
| Gears |
8 forward and 2 reverse |
| Clutch |
14.75-inch dry disc |
| Oil capacity |
64qts / 60.6L |
TRANSMISSION 2
The John Deere 4620 features a full power shift transmission with 8 forward and 4 reverse gears, offering seamless gear transitions which enhance operational efficiency and reduce operator fatigue. The hydraulic wet disc clutch system provides smooth engagement, minimizing wear and extending the lifespan of driveline components. With an oil capacity of 72 quarts (68.1 liters), proper maintenance is crucial to prevent overheating and ensure optimal performance during heavy-duty applications.
| Transmission |
John Deere Power Shift |
| Type |
full power shift |
| Gears |
8 forward and 4 reverse |
| Clutch |
hydraulic wet discs |
| Oil capacity |
72qts / 68.1L |
SPEEDS 2
| Description |
With 20.8-38 rear tires |
MECHANICAL
The John Deere 4620's optional 4WD and hydro-mechanical differential lock enhance traction and stability, making it suitable for diverse terrain and heavy-duty applications. The hydrostatic power steering and hydraulic wet disc brakes provide superior control and safety, though the open operator station may expose operators to environmental conditions. With an 8-speed partially synchronized or full power shift transmission, operators benefit from smooth gear transitions, improving operational efficiency for tasks requiring frequent speed changes.
| Chassis |
4x2 2WD/4x4 HFWD 4WD |
| Final drives |
planetary |
| Differential lock |
hydro-mechanical rear |
| Steering |
hydrostatic power |
| Brakes |
hydraulic wet disc |
| Cab |
Open operator station. Optional two-post Roll-Gard ROPS and canopy. Cab optional |
| Transmissions |
8-speed partially synchronized 8-speed full power shift |
CAPACITY
| Fuel |
50gal / 189.3L |
| Hydraulic system |
16gal / 60.6L (Syncro) 18gal / 68.1L (Powershift) |
HYDRAULICS
| Type |
closed center |
| Capacity |
16gal / 60.6L (Syncro) 18gal / 68.1L (Powershift) |
TRACTOR HITCH
POWER TAKE-OFF (PTO)
| Rear PTO |
independent |
| Rear RPM |
1000 |
| Engine RPM |
1000@1900 |
JOHN DEERE 4620 TIRES
The John Deere 4620 tractor features versatile tire options, with front tires (9.50-20) and multiple dual rear configurations, allowing for adaptability in various agricultural applications. The availability of dual tires such as 18.4-38 offers enhanced traction and stability, making it suitable for heavy tillage and high-draft implements. However, operators should consider the increased width and potential compacted soil issues when utilizing duals, especially in wetter conditions.
| Ag front |
9.50-20 |
| Ag rear |
18.4-38 / 24.5-32 / 12.4-42 (duals)/15.5-38 (duals)/16.9-38 (duals) / 18.4-38 (duals) / 20.8-38 (duals) |
DIMENSIONS
| Wheelbase |
106.5inches / 270cm |
| Length |
170.7inches / 433cm |
| Width |
95.8inches / 243cm 108inches / 274cm (long axle) 118inches / 299cm (extra long axle) |
| Height |
106inches / 269cm |
| Height (steering wheel) |
87inches / 220cm |
| Clearance (front axle) |
23.8inches / 60cm |
| Clearance (rear axle) |
31.1inches / 78cm 29.4inches / 74cm (rear housing) |
| Clearance (drawbar) |
17.8inches / 45cm |
| Front tread |
72 to 88inches / 182to 223cm (4WD) |
| Rear tread |
60 to 130inches / 152to 330cm (cast extra long axle) |
JOHN DEERE 4620 WEIGHT
| Shipping |
12980lbs / 5887kg |
| Operating |
14930lbs / 6772kg |
| Ballasted |
18640lbs / 8455kg |
DIMENSIONS & TIRES
The John Deere 4620 features a 106.5-inch wheelbase, providing stability for traction and maneuverability, ideal for various field operations. With a weight range of 12,980 to 14,930 pounds, it offers robust handling in tough conditions but may impact transportability and fuel efficiency. The tire specifications, with 11.00-16 in the front and 20.8-38 in the rear, support optimal ground contact and flotation in diverse terrains, enhancing its performance in agricultural applications.
| Wheelbase |
106.5inches / 270cm |
| Weight |
12980 to 14930 pounds |
| Front tire |
11.00-16 |
| Rear tire |
20.8-38 |
4620 SERIAL NUMBERS
| Location |
Serial number plate on the rear of the tractor, above the PTO shaft |
| 1971 |
10001 |
| 1972 |
13692 |
| Final |
16967 |
ELECTRICAL
| Ground |
negative |
| Charging system |
alternator |
| Batteries |
2 |
| Battery volts |
6 |
