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John Deere 1250

The John Deere 1250 is a tractor produced by John Deere. It is equipped with a 142.7 ci 2.3 L engine. The listed engine power is Diesel (gross): 44 hp / 32.8 kW. Transmission: 9 forward and 3 reverse. Operating weight: 4125 to 5090 pounds.

Engine Power
Diesel (gross): 44 hp / 32.8 kW
Fuel & Capacities
17.2 gal 65.1 L
Transmission
9 forward and 3 reverse
Operating Weight
4125 to 5090 pounds

Overview

John Deere 1250 tractor photo
1982 - 1989 Compact Utility tractorYanmar built Compact Utility tractor Yanmar built
Production
Distributor
John Deere
Manufacturer
Yanmar
Compact Utility tractor
Built in Japan
Original price
$14,295 (1983 2WD )
$18,795 (1983 4WD )
$18,700 (1988 )
John Deere 1250 Engine
Yanmar 2.3L 3-cyl diesel
Fuel tank
17.2 gal 65.1 L
Engine details ...
John Deere 1250 Transmission
9-speed gear
Transmission details ...
John Deere 1250 Power
Engine (gross)
44 hp 32.8 kW
PTO (claimed)
40 hp 29.8 kW
Drawbar (tested)
33.44 hp 24.9 kW
PTO (tested)
40.70 hp 30.3 kW
Performance test details ...
Mechanical
Two- or four-wheel drive
Final drives
inboard planetary
Differential lock
mechanical rear
Steering
power assist
Differential hydraulic wet disc brakes
Two-post ROPS. Canopy optional.
Hydraulics
Type
open center
Pressure
2200 psi 151.7 bar
Valves
0 to 2
Pump flow
11.2 gpm 42.4 lpm
Total flow
15.9 gpm 60.2 lpm
Steering flow
4.7 gpm 17.8 lpm
Tractor hitch
Rear Type
II/I
Control
center-link draft sensing with position and control
Rear lift (at 24"/610mm)
2240 lbs 1016 kg
Power Take-off (PTO)
Rear PTO
live *Two-stage clutch
Rear PTO Type
540 (1.375)
Engine RPM
540@2295
Dimensions & Tires
2WD Wheelbase
74.4 inches 188 cm
4WD Wheelbase
78.1 inches 198 cm
Weight
4125 to 5090 pounds
Front tire
6.50-16
2WD Rear tire
13.6-28
Full dimensions and tires ...
Electrical
Ground
negative
Charging system
alternator
Charging amps
25
Battery CCA
485
Battery volts
12
References
1250 references literature
Consumer Products Price List published in 1983, by John Deere
Grounds Care Equipment Purchasing Guide published in 1983, by John Deere
Loaders, Spreaders and Blades published in 1984, by John Deere
Tractors 40 to 80 HP published in 1981, by John Deere
Operator's Manual 1250, 1450 and 1650 Tractors (OMRW18976) published in 1986
Compact Utility/Utility Tractors Product Information Handbook published in 1983, by John Deere
Utility Tractors Product Information Handbook published in 1984, by John Deere
Tractors 40 to 85 HP published in 1986, by John Deere
Tractors 40 to 95 HP published in 1988, by John Deere
40 to 100 HP Tractors Product Information Handbook published in 1987, by John Deere
40 to 100 HP Tractors Product Information Handbook published in 1988, by John Deere
Compact Utility Diesel Tractors 14.5 to 40 PTO hp published in 1982, by John Deere
Diesel Tractors 14.5 to 60 PTO hp published in 1984, by John Deere
Mechanical Front-Wheel Drive published in 1984, by John Deere
Agricultural Price List published in 1983, by John Deere
Tractors Hi-Crop, Low-Profile, Narrow- and Wide-Tread published in 1985, by John Deere

Engine

Engine Detail — 142.7 ci / 2.3 L Diesel

Manufacturer
Yanmar
Fuel Type
Diesel
Configuration
3-cylinder, liquid-cooled inline
Displacement
142.7 ci 2.3 L
Bore/Stroke
3.74x4.33 inches 95 x 110 mm
Power (gross)
44 hp 32.8 kW
Fuel system
direct injection
Air cleaner
dry
Compression
18:1
Rated RPM
2500
Idle RPM
800-2675
Firing order
1-3-2
Starter volts
12
Coolant capacity
8.4 qts 7.9 L
Oil capacity
11.2 qts 10.6 L
Oil change
200 h

Transmission

Transmission — 9 forward and 3 reverse gear

Type
gear
Gears
9 forward and 3 reverse
Clutch
dry disc
Oil capacity
33.3 qts 31.5 L
Three gears (1-3) plus reverse (R) in three ranges (I, II, III). Tractor must be stopped, and clutch used, to shift range or gear.
1250 gear speeds

Dimensions

John Deere 1250 Tires
2WD Standard tires (ag)
Front: 6.50-16. Rear: 13.6-28
4WD Standard tires (ag)
Front: 9.5-24. Rear: 14.9-28
Lawn/turf front
27x9.50-15
Lawn/turf rear
21.5L-16.1
Dimensions
2WD Wheelbase
74.4 inches 188 cm
4WD Wheelbase
78.1 inches 198 cm
Length
134.3 inches 341 cm
Width
65.2 inches 165 cm
Clearance (front axle)
17.5 inches 44 cm
Front tread
55 to 74.8 inches 139 to 189 cm
Rear tread
51 to 79 inches 129 to 200 cm
John Deere 1250 Weight
2WD Shipping
4125 lbs 1871 kg
4WD Shipping
4875 lbs 2211 kg
4WD Operating
5090 lbs 2308 kg
Ballasted
5180 lbs 2349 kg
John Deere 1250 Height
2WD Hood
55 inches 139 cm
4WD Hood
56.1 inches 142 cm
2WD ROPS
87.2 inches 221 cm
4WD ROPS
88.3 inches 224 cm

Tests

Nebraska Tractor Test 1437
Diesel 9-speed 4WD May 13 - June 1, 1982 Link: Nebraska Tractor Test 1437 file
PTO performance
Power at rated engine speed
40.70 hp 30.3 kW
Fuel use
2.4 gal/hour 9.1 l/hour
Power at rated PTO speed
40.98 hp 30.6 kW
Fuel use
2.4 gal/hour 9.1 l/hour
Drawbar performance
Max power
33.44 hp 24.9 kW
Fuel use
2.4 gal/hour 9.1 l/hour
Max pull
5,164 lbs 2342 kg

Recommended Implements & Sizing Guide

Engineering recommendations for John Deere 1250 based on its 44 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm)Medium DutyStandard utility farm tillage.
Rotary Cutter / MowerMowing & Clearing
6 ft (72 in)1.8 mMedium DutyMedium pasture clearing; rear slip-clutch recommended.
Rotary TillerSeedbed Prep
66 to 72 in165 - 180 cmMedium DutyStandard utility tiller; slip clutch protection required.
Disc HarrowSecondary Tillage
7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙Medium DutyField leveling and clod breaking behind plows.
Hay BalerHay & Forage
Small Square Baler (14x18")小方捆打捆机 (36x46 cm)Medium DutyClassic 2-string baler for horse and small livestock hay.
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 1250.

Estimated Continuous Field Runtime: 7.5 hrs

Approximately 7.5 hours of continuous field operation at ~75% rated power on a full tank (17.2 gal / 65.1 L).

Estimated 75% Load Fuel Burn~2.3 gal/hr (8.7 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 1250 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for John Deere 1250.

Converted Equivalents:

Horsepower (HP)44 hp
Kilowatts (kW)32.8 kW
Metric Horsepower (PS / CV)44.6 PS

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