NEBRASKA TRACTOR TEST 1855 JOHN DEERE 4720 EHYDRO DIESEL HYDROSTATIC
POWER TAKE-OFF PERFORMANCE
Power HP (kW) Crank shaft speed rpm Gal/hr (l/h) lb/hp.hr (kg/kW.h) Hp.hr/gal (kW.h/l) Mean Atmospheric Conditions
Location of tests: Nebraska Tractor Test Laboratory, University of Nebraska, Lincoln Nebraska 68583-0832 Dates of tests: August 31-September 2, 2005 Manufacturer: John Deere Commercial Products Inc., 700 Horizon South Parkway, Grovetown Ga. USA, 30813 FUEL, OIL and TIME: Fuel No. 2 Diesel Specific gravity converted to 60/60 F (15/15C) 0.8473 Fuel weight 7.055 lbs/gal (0.846 kg/l) Oil SAE 15W40 API service classification CG-4 Transmission and hydraulic lubricant John Deere Hy-Gard Fluid Total time engine was operated 5.0 hours ENGINE: Make John Deere Diesel Type four cylinder vertical with turbocharger Serial No. *PE4024T025769* Crankshaft lengthwise Rated engine speed 2400 Bore and stroke 3.386" x 4.134" (86.0 mm x 105.0 mm) Compression ratio 20.5 to 1 Displacement 149 cu in (2440 ml) Starting system 12 volt Lubrication pressure Air cleaner one paper element and one polyester felt element Oil filter one full flow cartridge Oil cooler engine coolant heat exchanger for crankcase oil, radiator for transmission and hydraulic oil Fuel filter one paper element Muffler underhood Exhaust horizontal Cooling medium temperature control one thermostat ENGINE OPERATING PARAMETERS: Fuel rate: 22.0 - 24.5 lb/h (10.0 - 11.0 kg/h) High idle: 2550 - 2650 rpm Turbo boost: nominal 10.2 13.1 psi (70 - 90 kPa) as measured 11.6 psi ( 80 kPa) CHASSIS: Type Front wheel assist Serial No. *LV4720H270091* Tread width rear 51.3" (1304 mm) to 74.8" (1900 mm) front 53.1" (1349 mm) to 56.7" (1440 mm) Wheelbase 71.5" (1816 mm) Hydraulic control system direct engine drive Transmission Hydrostatic. Infinitely variable within the ranges shown. The transmission has 3 mechanical ranges Nominal travel speeds mph (km/h) A -0-3.7(6.0), B- 0-6.6(10.7), C -0-15.5(25.0) reverse A-0-3.7(6.0),B 0-6.6(10.7),C-0-15.5(25.0) Clutch none - travel speed is electronically controlled by foot pedal Brakes single wet disc mechanically operated by two foot pedals which can be locked together Steering hydrostatic Power take-off 540 rpm at 2395 engine rpm Unladen tractor mass 3860 lb (1751 kg)
MAXIMUM POWER AND FUEL CONSUMPTION
51.77 (38.60) 51.77 (38.60) 51.77 (38.60) 46.48 (34.66) 35.22 (26.26) 23.59 (17.59) 12.01 (8.96) 0.60 (0.44) 2402 Rated Engine Speed(PTO speed541 rpm) 3.29 0.449 15.72 (12.47) (0.273) (3.10) Standard Power Take-off Speed - (541 rpm) 3.29 0.449 15.72 (12.47) (0.273) (3.10) 3.29 (12.47) 3.13 (11.86) 2.52 (9.55) 1.91 (7.24) 1.40 (5.31) 0.95 (3.59) 0.449 (0.273) 0.476 (0.289) 0.505 (0.307) 0.572 (0.348) 0.824 (0.501) 11.246 (6.841) 15.72 (3.10) 14.84 (2.92) 13.96 (2.75) 12.33 (2.43) 8.56 (1.69) 0.63 (0.12) Air temperature 75F (24C) Relative humidity 74% Barometer 28.75"Hg (97.36 kPa)
VARYING POWER AND FUEL CONSUMPTION

2608 2644

Maximum Torque 141 lb.-ft. (191 Nm) at 1550 rpm Maximum Torque Rise - 24.6% Torque rise at 1900 rpm - 17%
TRACTOR SOUND LEVEL WITHOUT CAB

At no load in B range speed setting 4.7 mph (7.5 km/h) Transport speed - no load- C range Bystander in C range
Front Wheel Drive Engaged Disengaged dB(A) dB(A)

86.2 85.7 86.5 78.4

TIRES AND WEIGHT
Rear TiresNo., size, ply & psi (kPa) Front TiresNo., size, ply & psi (kPa) Height of Drawbar Static Weight with operator Rear Front Total
Tested Without Ballast Two 17.5L-24; 8; 20 (135) Two 10-16.5; 6; 15 (105) 15.5 in (395 mm) 2395 lb (1086 kg) 1640 lb (744 kg) 4035 lb (1830 kg)
THREE POINT HITCH PERFORMANCE (OECD Static Test)
CATEGORY: I Quick Attach: None Maximum Force Exerted Through Whole Range: i) Opening pressure of relief valve: Sustained pressure of the open relief valve: ii) Pump delivery rate at minimum pressure and rated engine speed: iii) Pump delivery rate at maximum hydraulic power: Delivery pressure: Power: 2523 lbs 2821 lbs NA 2600 psi 10.6 GPM 11.0 GPM 2215 psi 14.2 HP (11.2 kN)(at 24" behind link ends) (15.3 kN)(at lift link ends) (179 bar) (40.1 l/min) (41.6 l/min) (153 bar) (10.6 kW)
REPAIRS AND ADJUSTMENTS: No repairs or adjustments. REMARKS: All test results were determined from observed data obtained in accordance with official OECD, SAE and Nebraska test procedures.This tractor did not meet the manufacturer's claims of: 30% torque rise, 3130 lb (1423 kg) lift capacity at ball ends nor implement pump flow of 12.0 GPM (45.3 l/min). For the maximum power tests, the fuel temperature at the injection pump inlet was maintained at 159oF (70oC). We, the undersigned, certify that this is a true and correct report of official Tractor Test No. 1855, October 26, 2005. Leonard L. Bashford Director M.F. Kocher V.I. Adamchuk J.A. Smith Board of Tractor Test Engineers
THREE POINT HITCH PERFORMANCE
Observed Maximum Pressure psi. (bar) Location: Hydraulic oil temperature: oF (0C) Location: Category: Quick attach: 2510 (173) hydraulic service port 158 (70) hydraulic sump I none
SAE Static TestSystem pressure 2485 psi (171 Bar) Hitch point distance to ground level in. (mm ) 8.1 (205) 13.7 (349) 20.0 (509) 26.9 (684) 32.1 (816) Lift force on frame lb 2581 " " " " " " " (kN) (13.2) (13.6) (13.4) (11.6) (11.5)

OECD/SAE Test

A B C D E F G H I J K L M N O P Q R inch 21.9 11.4 13.7 12.7 11.7 5.2 23.1 0.2 12.6 17.9 15.8 32.9 20.1 27.5 8.1 36.0 30.5 19.0 mm 775 483
HITCH DIMENSIONS AS TESTED - NO LOAD

John Deere 4720 Diesel

Institute of Agriculture and Natural Resources University of NebraskaLincoln

NEBRASKA TRACTOR TEST 1946 JOHN DEERE 4720 EHYDRO DIESEL HYDROSTATIC (Chassis S/N 670001 and higher)
POWER TAKE-OFF PERFORMANCE
Power HP (kW) Crank shaft speed rpm Gal/hr (l/h) lb/hp.hr (kg/kW.h) Hp.hr/gal (kW.h/l) Mean Atmospheric Conditions
Location of tests: Nebraska Tractor Test Laboratory, University of Nebraska, Lincoln Nebraska 68583-0832 Dates of tests: March 31-April 16, 2009 Manufacturer: John Deere Commercial Products Inc., 700 Horizon South Parkway, Grovetown Ga. USA, 30813 FUEL, OIL and TIME: Fuel No. 2 Diesel Specific gravity converted to 60/60 F (15/15C) 0.8470 Fuel weight 7.052 lbs/gal (0.845 kg/l) Oil SAE 15W40 API service classification CH-4 Transmission and hydraulic lubricant John Deere Hy-Gard Fluid Total time engine was operated 11.0 hours ENGINE: Make John Deere Diesel Type four cylinder vertical with turbocharger and air to air intercooler Serial No. *PE4024R001850* Crankshaft lengthwise Rated engine speed 2400 Bore and stroke 3.386" x 4.134" (86.0 mm x 105.0 mm) Compression ratio 20.5 to 1 Displacement 149 cu in (2440 ml) Starting system 12 volt Lubrication pressure Air cleaner one paper element and one polyester felt element Oil filter one full flow cartridge Oil cooler engine coolant heat exchanger for crankcase oil, radiator for transmission and hydraulic oil Fuel filter one paper element Muffler underhood Exhaust horizontal Cooling medium temperature control one thermostat ENGINE OPERATING PARAMETERS: Fuel rate: 27.4 - 29.5 lb/h (12.4 - 13.4 kg/h) High idle: 2550 - 2650 rpm Turbo boost: nominal 16.7 18.1 psi (115 - 125 kPa) not measured CHASSIS: Type Front wheel assist Serial No. *LV4720H060469* Tread width rear 66.5" (1689 mm) to 90.0" (2285 mm) front 54.6" (1386 mm) to 56.7" (1440 mm) Wheelbase 71.5" (1816 mm) Hydraulic control system direct engine drive Transmission Hydrostatic. Infinitely variable within the ranges shown. The transmission has 3 mechanical ranges Nominal travel speeds mph (km/h) A -0-4.1(6.6), B- 0-7.3(11.7), C -0-17.0(27.3) reverse A-0-4.1(6.6),B-0-7.3(11.7),C-0-17.0(27.3) Clutch none - travel speed is electronically controlled by foot pedal Brakes single wet disc mechanically operated by two foot pedals which can be locked together Steering hydrostatic Power take-off 540 rpm at 2395 engine rpm Unladen tractor mass 3850 lb (1746 kg)
MAXIMUM POWER AND FUEL CONSUMPTION
58.66 (43.75) 59.16 (44.12) 58.66 (43.75) 51.69 (38.55) 39.47 (29.44) 26.80 (19.98) 13.50 (10.07) 1.49 (1.11) 2404 Rated Engine Speed(PTO speed541 rpm) 4.01 0.482 14.62 (15.19) (0.293) (2.88) 3.88 (14.68) 4.01 (15.19) 3.61 (13.66) 2.83 (10.72) 2.07 (7.84) 1.33 (5.02) 0.78 (2.97) Maximum Power - (1 hour) 0.462 15.25 (0.281) (3.00) 0.482 (0.293) 0.492 (0.299) 0.506 (0.308) 0.545 (0.331) 0.693 (0.421) 3.708 (2.255) 14.62 (2.88) 14.33 (2.82) 13.93 (2.74) 12.94 (2.55) 10.18 (2.01) 1.90 (0.37) Air temperature 77F (25C) Relative humidity 14% Barometer 28.34"Hg (95.97 kPa)
VARYING POWER AND FUEL CONSUMPTION

2604 2604

Maximum Torque 171 lb.-ft. (232 Nm) at 1453 rpm Maximum Torque Rise - 33.4% Torque rise at 1902 rpm - 25% Power increase at 2205 rpm - 1%
TRACTOR SOUND LEVEL WITHOUT CAB
Front Wheel Drive Engaged Disengaged dB(A) dB(A)
86.6 83.1 86.5 83.0 88.1 79.1
At no load in B range-speed setting 4.7 mph (7.5 km/h)(engine 2600 rpm) At no load in B range-speed setting 4.7 mph (7.5 km/h)(engine 1750 rpm) Transport speed - no load- C range Bystander in C range

TIRES AND WEIGHT

Rear TiresNo., size, ply & psi (kPa) Front TiresNo., size, ply & psi (kPa) Height of Drawbar Static Weight with operator Rear Front Total
Tested Without Ballast Two 17.5L-24; 8; 20 (135) Two 10-16.5; 6; 15 (105) 15.5 in (395 mm) 2315 lb (1050 kg) 1710 lb (775 kg) 4025 lb (1825 kg)

HYDRAULIC PERFORMANCE

CATEGORY: I Quick Attach: None OECD Static test Maximum force exerted through whole range: i) Sustained pressure of the open relief valve: ii) Pump delivery rate at minimum pressure and rated engine speed: iii) Pump delivery rate at maximum hydraulic power: Delivery pressure: Power:
2523 lbs 2398 psi 11.6 GPM 11.6 GPM 2250 psi 15.2 HP
(11.2 kN) (165 bar) (43.9 l/min) (43.9 l/min) (155 bar) (11.4 kW)
REPAIRS AND ADJUSTMENTS: During preliminary hydraulic flow testing it was determined that the hydraulic pump was deficient. The pump was replaced and testing continued. NOTE: The performance figures on this report apply to tractors with chassis S/N 670001 and higher. REMARKS: All test results were determined from observed data obtained in accordance with official OECD, SAE and Nebraska test procedures. This tractor did not meet the manufacturer's claim of implement pump flow of 12.0 GPM (45.3 l/min). For the maximum power tests, the fuel temperature at the injection pump inlet was maintained at 167oF (75oC). We, the undersigned, certify that this is a true and correct report of official Tractor Test No. 1946, July 30 2009. Roger M. Hoy Director

THREE POINT HITCH PERFORMANCE
Observed maximum pressure psi. (bar) Location: Hydraulic oil temperature: oF (0C) Location: Category: Quick attach: 2516 (173) hydraulic service port 158 (70) hydraulic sump II none
SAE Static TestSystem pressure 2165 psi (149 Bar) Hitch point distance to ground level in. (mm ) 8.1 (205) 13.7 (349) 20.0 (509) 26.9 (684) 32.1 (816) Lift force on frame lb 2581 " " " " " " " (kN) (13.2) (13.6) (13.4) (11.6) (11.5)

OECD/SAE Test

A B C D E F G H I J K L M N O P Q R inch 21.9 11.4 13.7 12.7 11.7 5.2 23.1 0.2 12.6 17.9 15.8 32.9 20.1 27.5 8.1 36.0 30.5 19.0 mm 775 483
M.F. Kocher V.I Adamchuk J.A. Smith Board of Tractor Test Engineers
HITCH DIMENSIONS AS TESTED - NO LOAD

John Deere 4720 Diesel

Institute of Agriculture and Natural Resources University of NebraskaLincoln