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Ford 1520 Tractor Specifications

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Complete specifications for the Ford 1520 compact utility tractor, transcribed from the specifications section of the factory operator's manual (SE 4594). The 1520 uses a three-cylinder Shibaura diesel of 81.16 cu. in. and sits between the 1320 and 1720 in Ford's 20-series compact range. It was offered with either a nine-speed mechanical transmission or a hydrostatic drive, each in two-wheel and four-wheel drive; where a figure differs between those configurations, both are given below.

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Engine

Type Diesel
Number of Cylinders 3
Bore 3.31 in. (8.4 cm)
Stroke 3.15 in. (8.0 cm)
Displacement 81.16 cu. in. (1330 cc)
Compression Ratio 23 : 1
Firing Order 1-2-3
Low Idle Speed 800–900 rpm
Maximum Speed — High Idle 2650–2700 rpm
Maximum Speed — Rated 2500 rpm
Valve Clearance (Cold) — Intake 0.008 in. (0.20 mm)
Valve Clearance (Cold) — Exhaust 0.008 in. (0.20 mm)

Capacities

Component U.S. Imperial Metric
Fuel Tank 7.1 gals. 5.9 gals. 27 liters
Cooling System 4.2 qts. 3.5 qts. 4.0 liters
Engine Crankcase — Less Filter 4.2 qts. 3.5 qts. 4.0 liters
Engine Crankcase — With Filter Change 4.8 qts. 4.0 qts. 4.5 liters
Rear Axle and Mechanical or H.S.T. Transmission (includes hydraulics) 23.3 qts. 19.3 qts. 22 liters
Power Steering 1.9 qts. 1.6 qts. 1.8 liters
Front Axle Final Reduction and Differential Gear Case 3.2 qts. 2.6 qts. 3.0 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 13.4 in. (34.0 cm)
Thermostat — Starts to Open 160°F (71°C)
Thermostat — Fully Open 185°F (85°C)
Radiator Cap 13 psi (0.9 bar)

Electrical System

Alternator 12-volt, heavy duty, 35 amps (IC regulator built in)
Battery 12-volt, 70 amp. hour rating with negative ground
Starting Motor Magnetic shift reduction

Fuel System

Fuel Temperature Type
Diesel Above 20°F (−6.7°C) No. 2D, cetane rating min. 40
Diesel Below 20°F (−6.7°C) No. 1D, cetane rating min. 40
Injection Pump — Type In-line
Injection Pump — Timing 22.5° BTDC

Clutch

Type 8.46 in. (21.5 cm) dry disc, organic face
Pedal Free-Travel 3/4–1-3/16 in. (19–30 mm)

Brakes

Type Wet disc
Disc 2 6.1 in. × 4.8 in. diameter (15.5 cm × 12.3 cm)

Steering

Type Full hydraulic power
Turns Lock-to-Lock 2.5
Front Wheel Toe-In 0–13/64 in. (0–5 mm)
Turning Radius (without brake) — Two Wheel Drive 8.69 ft. (265 cm)
Turning Radius (without brake) — Four Wheel Drive 9.38 ft. (286 cm)

Power Take-Off

Type Transmission
Shaft 1-3/8 in. (3.49 cm), 6 spline SAE STD
Engine Speed for 540 rpm PTO Operation 2292 rpm (gear) / 2326 rpm (H.S.T.)
Horsepower PTO — Observed 19.7

Hydraulic Lift System

Type Live, Category 1 three-point linkage
Pump Type Gear
Pump Capacity 6.87 U.S. gpm (5.72 Imp. gpm, 26.0 liters per minute) at 2133 psi at 2500 rpm (147 bar at 2500 rpm)
System Relief Valve Setting 2133 psi (147 bar)

Cast Iron Weights

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

Draw Bars

Extendible Standard
Swinging Optional

Tires

Position Two Wheel Drive Four Wheel Drive
Front — Standard (AG) 5.00-15, F2, 4PR 6-14 R1, 4PR
Front — Optional (AG) 5.50-16, F2, 4PR 7-14 R1, 4PR
Front — Optional (Turf) 23-8.50-12, 4PR 25-8.50-14, 4PR
Rear — Standard (AG) 9.5 × 24, R1, 4PR — Two & Four Wheel Drive
Rear — Optional (AG) 11.2 × 24, R1, 4PR — Two & Four Wheel Drive
Rear — Optional (Turf) 13.6-16, R3, 4PR — Two & Four Wheel Drive

Wheel & ROPS Bolt Torques

Fastener Two Wheel Drive Four Wheel Drive
Front Wheel Disc-to-Hub 43–54 lb. ft. (58–73 N·m) 68.6–86.7 lbs. ft. (93–117 N·m)
Rear Wheel Disc-to-Rim and Disc-to-Axle 137–159 lbs. ft. (186–215 N·m)
ROPS to Fender (M12) 55 lbs. ft. (74 N·m)
Seat Belt (M10) 37 lbs. ft. (50 N·m)

Lubricants

Tractor Component Lubricant Recommendation Ford Part No.
Engine Oil Ford Super Premium 1QM-2C 121-AMV (case, 24 qts. 15W-40); 1QM-2C 121-A10 (case, 24 qts. SAE 10W); 1QM-2C 121-A30 (case, 24 qts. SAE 30W)
Transmission, Rear Axle, Power Steering and Hydraulic System Oil (mechanical and hydrostatic transmission) Ford 134 1GM-134C (1 gal.); 5GM-134C (5 gal.)
Front Wheel Bearings and Lubrication Fittings M1C-137-B 1TM-1C-137-B (1 tube)
Front Axle Ford 134 1GM-134C (1 gal.); EOAZ-19580-E (5 gal.)

The manual notes that if the recommended engine oil is not readily available, a commercial oil may be used as shown on page 34 of the manual, and that engine crankcase oil drain intervals should be shortened when diesel fuel sulfur content is over 0.5%.1

General Dimensions

Dimension Two Wheel Drive Four Wheel Drive
Length 111.4 in. (283.0 cm) 111.4 in. (283.0 cm)
Wheelbase 63 in. (160.0 cm) 63 in. (160.0 cm)
Height — Top of Steering Wheel 55.7 in. (141.5 cm) 55.1 in. (140.0 cm)
Height — Top of ROPS 84.4 in. (214.5 cm) 84.4 in. (214.5 cm)
Height — Top of Vertical Exhaust 78.7 in. (200.0 cm) 78.5 in. (199.5 cm)
Width 51.3 in. (130.0 cm) 50.2 in. (127.5 cm)
Minimum Ground Clearance 11.8 in. (30.0 cm) 11.2 in. (28.5 cm)
Adjustable Wheel Tread — Front 39.2–50.0 in. (99.5–127.0 cm) 42.5 in. (108.0 cm)
Adjustable Wheel Tread — Rear 39.3–53.0 in. (99.8–134.5 cm) 41.1 in. (104.5 cm)
Weight with ROPS, less options 2172 lbs. (985 kg) 2280 lbs. (1034 kg)
Weight with ROPS, less options — H.S.T. 2194 lbs. (995 kg) 2304 lbs. (1045 kg)

Ground Speeds

From 1250–2500 rpm engine speed, with 9.5 × 24 rear tires.2

Gear Position At 1250 rpm (mph) At 2500 rpm (mph)
Forward — Mechanical Transmission
1st 0.4 0.7
2nd 0.5 1.1
3rd 0.8 1.6
4th 1.2 2.3
5th 1.7 3.4
6th 2.5 4.9
7th 3.0 5.9
8th 4.4 8.7
9th 6.3 12.5
Forward — Hydrostatic Transmission3
H.S.T. Low — 3.1
H.S.T. Medium — 6.4
H.S.T. High — 12.3
Reverse — Mechanical Transmission
R1 0.5 1.1
R2 1.7 3.4
R3 4.4 8.7
Reverse — Hydrostatic Transmission3
H.S.T. Low — 2.1
H.S.T. Medium — 4.5
H.S.T. High — 8.6

Notes:
1 The manual prints “sulfer” in this note; spelling normalised. Page references are to the operator's manual, not to this page.
2 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 1250 and 2500 rpm — they are transcribed, not measured from the graph.
3 A hydrostatic transmission is continuously variable from zero. The manual prints a single figure for each H.S.T. range, shown here in the 2500 rpm column.
All specifications transcribed from the specifications section of the Ford 1520 operator's manual, manual code SE 4594, originally published by Ford New Holland, Inc. 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 4594

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