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Massey Ferguson MF 175 Tractor Specifications

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Complete specifications for the Massey Ferguson MF 175 tractor, transcribed from the specifications section of the factory operator's manual (Form No. 690 680 M1). The MF 175 was offered with a choice of a 206 cu. in. four-cylinder gasoline engine at 7.1:1 compression, or a 236 cu. in. four-cylinder diesel at 16:1 — the same displacement, bore and stroke as the diesel in the Massey Ferguson MF 180.

Transmission was either the standard Dual Range unit giving six forward and two reverse speeds, or the optional Multi-Power, which adds two-stage compounding for twelve forward and four reverse. Power take-off runs a three-position lever selecting engine-speed PTO, neutral, or ground-speed PTO, driven through a dual dry-disc clutch.

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Engine

Specification Gasoline Diesel
Type Dry sleeve, 4-cylinder, overhead valve Dry sleeve, 4-cylinder, overhead valve
Bore 3.812 inches 3.875 inches
Piston Stroke 4.5 inches 5 inches
Total Displacement 206 cu. ins. 236 cu. ins.
Compression Ratio 7.1 to 1 16 to 1
Firing Order 1-3-4-2 1-3-4-2
Lubrication Pressure fed, 20-25 psi at 2000 rpm Pressure fed, 40-55 psi
Tappet Clearance, hot 0.013 inch 0.010 inch
Tappet Clearance, cold — 0.012 inch
Idle Speed 450-500 rpm 725-775 rpm
Maximum Speed, no-load 2200-2250 rpm 2135-2185 rpm
Governor Variable speed, centrifugal flyball Built-in injection pump

Fuel System

Specification Gasoline Diesel
Type Gravity flow Pressure-fed
Carburetor Up-draft, dustproof type —
Primary Fuel Pump — Diaphragm type
Fuel Filters — Two full-flow filters, replaceable elements
Injection Pump — CAV distributor type
Fuel Injectors — CAV multi-hole type
Injection Timing — 26° B.T.D.C.

Cooling System

Type Circulated by a centrifugal pump, with a by-pass system. Flow thermostatically controlled through the radiator.
Pressure Cap 7 psi

Power Train

Clutch, Primary Dual dry-disc. Primary clutch coil spring-loaded, 11 in. diameter.
Clutch, Secondary Belleville spring-loaded, 9 in. diameter
Dual Range Transmission Constant mesh, helical primary reduction with spur-type speed change gears, operated with a planetary reduction assembly, giving 6 forward and 2 reverse speeds.
Multi-Power Transmission Adds two-stage compounding with a sliding gear and planetary compounding gear, giving 12 forward and 4 reverse speeds.
Final Drive Spiral bevel gear with straddle-mounted pinion, plus planetary final reduction at each axle

Power Take-Off

Shaft Splined, 1-3/8 in. diameter, ASAE standard
Engine PTO 540 rpm at 1700 engine rpm
Ground PTO 1 revolution per approximately 20 in. of forward travel
Control Three-position shift lever: engine-speed PTO, neutral, ground-speed PTO

Electrical System

Specification Gasoline Diesel
Battery 12V, 41 amp/hr, negative ground 12V, 96 amp/hr, negative ground
Starter Switch Combination ignition/starter, with safety switch Key-operated, self-returning, with safety switch
Starter Motor 12V, 4-pole 12V, 4-pole
Generator 12V, 2-brush shunt wound, 25 amp charging 12V, 2-brush shunt wound, 25 amp charging
Regulator Voltage-current limiting relay type Voltage-current limiting relay type
Distributor Automatic centrifugal advance —
Ignition Timing 6° B.T.D.C. —
Maximum Advance, at 2000 rpm 27° B.T.D.C. —
Contact Point Gap 0.018-0.024 inch —
Dwell Angle 25-34° —
Spark Plugs 18 mm, gap 0.025 inch —

Brakes

Type Mechanical, self-energizing, double-disc, 7 in. diameter
Pedal Free Travel 2-1/2 to 3 inches

Hydraulic System

Main Pump Constant running, scotch yoke, piston-type
Maximum Pressure 2350 psi
Main Pump Delivery 3.8 gpm at 1700 rpm / 1500 psi; 4.5 gpm at 2000 rpm / 1500 psi
Main Pump Control Oscillating valve on inlet side
Auxiliary Pump Constant running, gear type
Auxiliary Pump Delivery 7 gpm at 2000 rpm
Oil Available, with auxiliary hydraulic system Auxiliary pump only, 7 gpm; main pump only, 5 gpm; combined, 12 gpm (all at 2000 rpm)
Oil Available, without auxiliary hydraulic system Main pump only, 5 gpm at 2000 rpm

Capacities

Component U.S. Imperial
Fuel Tank, Gasoline 23 gals. 18.4 gals.1
Fuel Tank, Diesel 18.5 gals. 14.8 gals.1
Cooling System, Gasoline 10.5 qts. 8.7 qts.
Cooling System, Diesel 13.5 qts. 10.8 qts.1
Crankcase, Gasoline, without filter 5 qts. 4.2 qts.
Crankcase, Gasoline, with filter 6 qts. 5 qts.
Crankcase, Diesel, without filter 8.5 qts. 6.8 qts.1
Crankcase, Diesel, with filter 9.5 qts. 7.6 qts.1
Transmission, Differential and Hydraulic System 8 gals. 6.7 gals.
Power Steering Reservoir, Gasoline 1-1/3 qts. 1.1 qts.
Power Steering Reservoir, Diesel 1-3/4 qts. 1.4 qts.1
Steering Gear Housing 1 qt. 0.8 qts.1
Planetary Reduction Units 1-3/4 qts. 1.4 qts.1

Dimensions

Wheel Base 82 inches
Height Over-All, at steering wheel 65 inches
Normal Tread Width, Front 48.5 inches
Normal Tread Width, Rear 56 inches
Over-All Width, 56 in. rear tread, with 16.9/14-28 tire 73 inches
Over-All Width, 90 in. rear tread 107 inches
Ground Clearance, minimum 13-1/4 inches
Ground Clearance, front axle 21 inches
Tire Size, Rear 16.9/14-28; 18.4/15-26 optional
Tire Size, Front 6.00-16; 6.50-16 optional
Turning Radius, with brakes 9 ft. 6 inches

Notes:
1 Reproduced as printed. These rows convert U.S. to Imperial at a flat 0.8 ratio rather than the precise 0.8327 Imperial factor, understating the Imperial figure by about 4% in each case. Corrected values: Fuel Tank Gasoline 19.2 Imp. gals., Fuel Tank Diesel 15.4 Imp. gals., Cooling System Diesel 11.2 Imp. qts., Crankcase Diesel without filter 7.1 Imp. qts., with filter 7.9 Imp. qts., Power Steering Reservoir Diesel 1.5 Imp. qts., Steering Gear Housing 0.83 Imp. qts., Planetary Reduction Units 1.5 Imp. qts. The diesel fuel tank figures, 18.5 U.S. and 14.8 Imp., are identical to the same row in the MF 150 manual, so this looks like a print-run convention rather than a one-off error.
All specifications transcribed from the specifications section of the Massey-Ferguson MF 175 operator's manual, Form No. 690 680 M1, originally published by Massey-Ferguson. Verify against your tractor's serial number before ordering parts or setting clearances.

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Manual code: 690 680 M1

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