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Ford 1900 Tractor Specifications

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Complete specifications for the Ford 1900 compact tractor, transcribed from the specifications section of the factory operator's manual (SE 3753). The 1900 is the largest tractor in this group and the only one here with a three-cylinder engine: 1429 cc rated at 2800 rpm, producing 26.5 observed PTO horsepower against the 1700's 23.0. It runs twelve forward gears and four reverse on 12.4 × 24 rear tires, with a Live Position Control Category 1 three-point hitch and a gear pump delivering 5.9 gpm.

Bare weight is 2589 lbs. in two-wheel drive or 2822 lbs. in four-wheel drive, on a wheelbase of 63 to 64 inches and a 30 litre fuel tank, the largest in the range.

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Engine

Type Diesel
Number of Cylinders 3
Bore 3.35 in. (8.5 cm)
Stroke 3.31 in. (8.4 cm)
Displacement 82.7 cu. in. (1429 cc)1
Compression Ratio 21 : 1
Firing Order 1-2-3
Low Idle Speed 700–800 rpm
Maximum Speed (High Idle) 2950–3000 rpm
Maximum Speed (Rated) 2800 rpm
Valve Clearance, lash on a cold engine (Intake) 0.012 in. (0.30 mm)
Valve Clearance, lash on a cold engine (Exhaust) 0.012 in. (0.30 mm)
Air Cleaner (oil bath) 0.47 U.S. qts. (0.39 Imp. qts., 0.44 liters)

Capacities

Component U.S. Imperial Metric
Fuel Tank 7.9 gals. 6.6 gals. 30 liters
Cooling System 6.3 qts. 5.2 qts. 6.0 liters
Engine Crankcase (less filter) 5.9 qts. 4.8 qts. 5.6 liters
Engine Crankcase (with filter change) 6.3 qts. 5.2 qts. 6.0 liters
Rear Axle and Transmission (includes hydraulics) 25.4 qts. 21.2 qts. 24.0 liters
Front Axle Differential Case (four wheel drive) 2.5 qts. 2.1 qts. 2.4 liters
Front Axle Final Reduction Gear Case, each case (four wheel drive) 0.23 qts. 0.19 qts. 0.22 liters

Cooling System

Type Pressurized liquid with recirculating bypass
Water Pump Type Centrifugal
Water Pump Drive V-belt
Water Pump Belt Deflection 7/16 to 9/16 in. (10–15 mm) when 20–25 lbs. (9–11 kg) thumb force is applied midway between pulleys
Fan Diameter 12-3/4 in. (32.5 cm)
Thermostat Starts to Open 159.8°F (71°C)
Thermostat Fully Open 185°F (85°C)
Radiator Cap 13 psi (0.9 bar)

Engine Oil

Ford specified Ford M2C121-A (Ford 300) engine oil. Should Ford engine oil not be readily available, the manual gives these commercial equivalents:

Use Temperature Viscosity Grade
Severe cold Below 32°F (0°C) SAE 10W
Winter 32° to 50°F (0° to 10°C) SAE 20W
Summer Above 50°F (10°C) SAE 30W

Fuel sulfur note, as printed: with a sulfur content below 1.0%, an API CC oil may be used instead of CD, but the oil change interval must be reduced to 50 hours and the filter changed every 100 hours. Between 1.0% and 1.3% sulfur a CD oil must be used (except at 10°F and below), with the same reduced 50-hour oil and 100-hour filter intervals. Fuel with a sulfur content above 1.3% is not recommended.

Electrical System

Alternator 12-volt, heavy duty, 20 amps
Regulator (Alternator) Mechanical
Battery 12-volt, 100 amp. hour rating with negative ground
Starting Motor Solenoid, pre-engaged

Fuel System

Type Diesel
Injection Pump Type In-line
Injection Pump Timing 26.5° BTDC

Clutch

Type 8.5 in. (21.59 cm) dry disc, organic face
Pedal Free-Travel 3/4–1-3/16 in. (1.9–3.0 cm)

Brakes

Type Drum (expanding shoe)
Drum 6.69 in. diameter (17.0 cm)

Steering

Type Manual
Turns Lock-to-Lock 2.3
Front Wheel Toe-In 0–1/2 in. (0–1.27 mm)2
Turning Radius, without brakes (two wheel drive) 8.5 ft. (260 cm)
Turning Radius, without brakes (four wheel drive) 12.3 ft. (315 cm)3

Power Take-Off

Type Transmission
Shaft 1-3/8 in. (3.49 cm), 6 spline SAE STD
Engine Speed for 540 rpm PTO Operation 2455 rpm
Horsepower PTO, observed 26.5

Hydraulic Lift System

Type Live Position Control, Category 1 three-point linkage
Pump Type Gear
Pump Capacity 5.9 U.S. gpm at 2133 psi at 2800 rpm (4.8 Imp. gals. at 147 bar at 2800 rpm)
System Relief Valve Setting 2133 psi (147 bar)

Cast Iron Weights

(3) Front End Weights 33 lbs. (15 kg) each
(4) Front Wheel Weights (two wheel drive only) 66 lbs. (30 kg) each, per wheel
(4) Rear Wheel Weights 66 lbs. (30 kg) each

Drawbars

Fixed Type Standard
Adjustable Optional

Tires

Front, standard (two wheel drive) 5.00-15, F2, 4 ply
Front, standard (four wheel drive) 6.00-16, R1, 4 ply
Front, optional (two wheel drive only) 20 × 8.00-10, 2 ply
Rear, standard (two and four wheel drive) 12.4 × 24, R1, 4 ply
Rear, optional (two wheel drive only) 13.6 × 16, R3, 6 ply

Wheel Bolt Torques

Front Wheel Disc-to-Hub (two wheel drive) 43.3–54.2 lbs. ft. (58.6–73.4 N·m)
Front Wheel Disc-to-Hub (four wheel drive) 137–159 lbs. ft. (185.6–215.4 N·m)
Rear Wheel Disc-to-Rim 180–217 lbs. ft. (243.8–294.0 N·m)
Rear Wheel Disc-to-Axle 137–159 lbs. ft. (185.6–215.4 N·m)

Lubricants

Engine Ford M2C121-A (Ford 300), see the engine oil table above4
Transmission, Rear Axle and Hydraulic System Oil Ford M2C-134-A
Front Wheel Bearings and Lubrication Fittings Ford M1C-137-A

General Dimensions

Dimension Two Wheel Drive Four Wheel Drive
Length 120.9 in. (307.0 cm) 120.9 in. (307.0 cm)
Wheelbase 63.0 in. (160 cm) 64.2 in. (163.0 cm)
Height, Top of Steering Wheel 58.9 in. (149.6 cm) 59.1 in. (150 cm)
Height, Top of ROPS 93.3 in. (237 cm) 93.3 in. (237 cm)
Height, Top of Vertical Exhaust 76.8 in. (195 cm) 77.2 in. (196 cm)
Width 62.2 in. (158 cm) 62.2 in. (158 cm)
Minimum Ground Clearance 15.2 in. (38.6 cm) 13.8 in. (35.0 cm)
Adjustable Width, Front 40.2–50.8 in. (102–129 cm) 44.5 in. (113.0 cm)
Adjustable Width, Rear 45.7–61.0 in. (116–155 cm) 45.7–61.0 in. (116–155 cm)
Weight (less options) 2589 lbs. (1165 kg) 2822 lbs. (1270 kg)

Ground Speeds

From 1400 to 2800 rpm engine speed, with 12.4 × 24 rear tires.5

Gear Position At 1400 rpm (mph) At 2800 rpm (mph)
Forward
1st 0.4 0.8
2nd 0.5 1.0
3rd 0.7 1.3
4th 0.9 1.8
5th 1.2 2.4
6th 1.5 3.0
7th 2.0 4.0
8th 2.7 5.4
9th 3.3 6.7
10th 3.9 7.9
11th 5.4 10.7
12th 6.7 13.4
Reverse
R1 0.5 0.9
R2 1.0 2.1
R3 2.3 4.6
R4 4.6 9.2

Notes:
1 Reproduced as printed, but the imperial figure is wrong and the digits appear to have been transposed. Two independent checks give 87.2 rather than 82.7. First, the manual's own metric figure: 1429 cc is 87.2 cu. in. Second, the geometry: a 3.35 in. bore and 3.31 in. stroke across three cylinders displaces about 87.5 cu. in. Both point to 87.2 and neither supports 82.7. The metric value of 1429 cc is the one to trust.
2 Reproduced as printed. 1/2 in. is 1.27 centimetres, not millimetres. The Ford 1000 and 1600 manuals print this same figure correctly as “0 – 1/2 inch (0 – 1.27 cm)”.
3 Reproduced as printed. These two figures do not convert: 12.3 ft. is about 375 cm, and 315 cm is about 10.3 ft. One of the two is wrong and the manual gives no way to tell which.
4 The manual prints “See table on page 22” here, referring to the engine oil recommendations reproduced above.
5 The manual presents ground speeds as a bar chart rather than a table. The values above are the endpoint figures printed on that chart at 1400 and 2800 rpm. They are transcribed, not measured from the graph. This chart is internally consistent with the 1900's own specifications: it is shod on the 12.4-24 standard rear tire and runs to the 1900's rated 2800 rpm.
All specifications transcribed from the specifications section of the Ford 1900 operator's manual, manual code SE 3753, originally published by Ford Tractor Operations, Ford Motor Company. Ford reserved the right to change specifications without notice; verify against your tractor's serial number before ordering parts or setting clearances.

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Manual code: SE 3753

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