John Deere F620
The John Deere F620 is a tractor produced by John Deere Lawn Tractors. It is equipped with a 624 cc 38.1 ci engine. The listed engine power is Gasoline (gross): 20 hp / 14.9 kW. Transmission: Hydro-Gear. Drive type: 3x2 2WD. Operating weight: 740 lbs*Weight of mower without deck. 335 kg.
Engine Power
Gasoline (gross): 20 hp / 14.9 kW
Drive & Traction
3x2 2WD
Fuel & Capacities
4.5 gal
17.0 L
Transmission
Hydro-Gear
Operating Weight
740 lbs*Weight of mower without deck.
335 kg
Overview
 | 1998 - 1999
F600 SeriesFront-mount mower
F600 Series
Front-mount mower |
|---|
Production | |
|---|---|
Manufacturer | John Deere |
Front-mount mower | |
Built in Fuquay-Varina, North Carolina, USA | |
John Deere F620 Engine | |
|---|---|
20HP Kohler 624cc 2-cyl gasoline | |
Fuel tank | 4.5 gal
17.0 L |
Engine details ...  | |
John Deere F620 Transmission | |
|---|---|
hydrostatic | |
Transmission details ...  |
Mechanical | |
|---|---|
Drive | 3x2 2WD |
4x2 2WD | |
Power steering | |
Open operator station. | |
Power Take-off (PTO) | |
|---|---|
Front PTO | independent |
Clutch | electric |
Front PTO Type | 3000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 40 inches
101 cm |
Weight | 740 lbs
335 kg |
Front tire | 20x10-10 |
Rear tire | 13x6.5-6 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | flywheel alternator |
Charging amps | 25 |
Battery CCA | 470 |
Battery volts | 12 |
References | |
|---|---|
 | |
Operator's Manual ZTRAK Front Mower F620 (OMM139734) | |
Commercial & Consumer Equipment Sales Manual published in 1999, by John Deere | |
Grounds Care Equipment Purchasing Guide published in 1999, by John Deere |
Engine
Engine Detail — 624 cc / 38.1 ci Gasoline
Manufacturer | Kohler CH20S |
Fuel Type | Gasoline |
Configuration | 2-cylinder, air-cooled horizontal-shaft V-Twin |
Displacement | 624 cc
38.1 ci |
Bore/Stroke | 3.03x2.64 inches
77 x 67 mm |
Power (gross) | 20 hp
14.9 kW |
Air cleaner | dry |
Rated RPM | 3050 |
Starter | electric |
Starter volts | 12 |
Oil capacity | 2.5 qts
2.4 L |
Transmission
Transmission — Hydro-Gear
Transmission | Hydro-Gear |
Type | belt-driven hydrostatic |
Gears | infinite forward and reverse |
Oil capacity | 8 qts
7.6 L |
 | |
Dimensions
John Deere F620 Tires | |
|---|---|
Lawn/turf front | 20x10-10 |
Lawn/turf rear | 13x6.5-6 |
Dimensions | |
|---|---|
Wheelbase | 40 inches
101 cm |
Length | 62 inches*Length without mower.
157 cm |
Height | 44 inches
111 cm |
Weight | 740 lbs*Weight of mower without deck.
335 kg |
Ground clearance | 5 inches
12 cm |
Attachments
Attachment overview | |
|---|---|
48" front-mount mower deck | |
54" front-mount mower deck | |
60" front-mount mower deck |
Photos
John Deere F620
Recommended Implements & Sizing Guide
Engineering recommendations for John Deere Lawn Tractors John Deere F620 based on its 20 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 1 to 2 Bottom (12")1 - 2 铧 (30 cm) | Light Duty | Ideal for garden plots and light sandy soil. |
Rotary Cutter / MowerMowing & Clearing | 4 ft (48 in)1.2 m | Light Duty | Pasture clipping and light brush under 1" diameter. |
Rotary TillerSeedbed Prep | 42 to 48 in105 - 120 cm | Light Duty | Covers compact tractor tire width. |
Disc HarrowSecondary Tillage | 5 to 6 ft (16-18" discs)1.5 - 1.8 m (40-45 cm 耙片) | Light Duty | Small acreage soil break-up and secondary aeration. |
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 John Deere Lawn Tractors John Deere F620.
Estimated Continuous Field Runtime: 4.3 hrs
Approximately 4.3 hours of continuous field operation at ~75% rated power on a full tank (4.5 gal / 17 L).
Estimated 75% Load Fuel Burn~1 gal/hr (3.9 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
John Deere Lawn Tractors John Deere F620 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere Lawn Tractors John Deere F620.
Converted Equivalents:
Horsepower (HP)20 hp
Kilowatts (kW)14.9 kW
Metric Horsepower (PS / CV)20.3 PS
Direct Competitor Comparison
Compare John Deere F620 against same-era industry alternatives in the same horsepower class.
Current Model
John Deere Lawn Tractors
John Deere F620
Engine Power:Gasoline (gross): 20 hp / 14.9 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 184 Lo-Boy
Engine Power:18
Production Years:1977 - 1980
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