Specifications, Service and Repair of Farm and Lawn Tractors

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John Deere 6125J Specs

JD 6125J Engine Specifications

Engine Manufactured - John Deere
Type - 4045H
Output - Turbocharged with air-air intercooler
No. of Cylinders - 4
Displacement - 4.5 l
Power at rated speed - 92 kW (125 cv)
Engine rated speed - 2300 rpm
Torque bulge - 25%
Maximum torque - 477 Nm (351.8 lb-ft)
Speed at maximum torque - 1600 rpm
Injection Pump Type - Rotary
Make / Model - Lucas / DP100
Starter motor / Make - Prestolite
Electrical System Voltage - 12 V
Alternator capacity - 90 A
Battery type - Sealed unserviceable
Battery capacity - 100 Ah
Starter motor - 3 kW

John Deere 6125J Power Take-Off

PTO Type - Independent
Actuation - Electro-Hydraulic
Power PTO at rated speed of engine - 78 kW (106 cv)
PTO rated speed (rpm) - 540 or 540/1000
Engine speed at rated speed of PTO (rpm) - 2124 or 2143/2208

Transmission

Model - PowrQuad Transmission
Type - Planetary gears, hydraulic shift
Number of gears - 16 forward and 16 reverse gears
Clutch - Mechanical / Hydraulic
Creeper Type - Non-synchronized reduction gear
Speed reduction - Approximately 90%
Shifting of two gears - Mechanically, non-synchronized
Clutch Type - Multidisc oil cooled
Actuation - Auto-adjustable hydraulic
No. of disks - 4
Diameter of disks - 225 mm (8.85 in.)

JD 6125J Mechanical

Steering System - Hydrostatic Load Sensing, flow guaranteed by priority valve
Service Brake Type - Disk in oil bath
Actuation - Auto-adjustable, hydraulically actuated
Park Brake Type - Transmission lock
Actuation - Controlled by gear-shift lever or reverse drive lever

Hydraulic System

Type - Hybrid / Option for closed center
Pump - Gears / Pistons
Pump flow rate - 65 L/min (17.4 gpm)
Pump flow rate - 100 L/min (26.4 gpm)
Maximum pressure - 200 bar (2900 psi)
Maximum lifting force on hitch - 3800 kgf (8377 lb.-ft.)
Lifting capacity at 610 mm (2 ft) of hitch - 2550 kgf (56218 lb.-ft.)
Control type - Electronic, with sensors in lower hitch arms
Standard selective control valves - 2 SCVs
Standard selective control valve flow rate - 60 L/min (15.8 gpm)
Optional selective control valves - 3 SCVs
Optional selective control valve flow rate - 96 L/min (25.4 gpm)
Maximum pressure of steering system - 185 bar (2683 psi)

John Deere 6125J Tires

Front Tire - 14.9-26 R1 12PR
Front Tire - 16.9-24 R1 8PR
Front Tire - 12.4-36 R1 6PR
Rear Tire - 23.1-30 R1 12PR FL
Rear Tire - 18.4-38 R1 10PR PC
Rear Tire - 320/90-R50 R1 PC

Capacities

Fuel Tank - 240 L (63.4 gal)
Cooling System - 26.7 L (7.1 gal)
Engine Oil - 17 L (4.49 gal)
Transmission/hydraulic System - 64.5 L (17 gal)
Front Axle Differential Housing - 8.2 L (2.1 gal)
Front Axle Final Drive Housing (each) - 0.75 L (0.2 gal)

JD 6125J Dimensions and Weights

Distance between axles - 2,4 m (94,5 in)
Total length with front weights - 4,57 m (179,8 in)
Maximum height - 2,67 m (105,2 in)
Width of the front axle (flange to flange) - 1,78 m (69,9 in)
Width of the rack and pinion rear axle - 2,44 mm (96 in)
Width of the flange rear axle - 1,55 mm (61,1 in)
Total weight without ballast - 4548 kg (10027 lb.)
Maximum permissible weight for ballasted tractor - 7000 kg (15432 lb.)
Front Counterweight - 4x40 kg (88 lb.)
Rear Counterweight - 4x55 kg (121.2 lb.)

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