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Massey Ferguson MF 12 Baler Specifications

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Complete specifications for the Massey Ferguson MF 12 baler, transcribed from the factory operator's manual (Form No. 690 672 M1, dated 6500-8/66). The MF 12 was offered as either a PTO machine or a self-powered engine machine driven by a Wisconsin THD 2-cylinder, air-cooled engine rated at 16 hp at 2400 rpm. All measurements are given with the tailgate up, as the manual specifies.

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Dimensions

Specification PTO Machine Engine Machine
Length Over-All, tailgate up 15 ft. 8-1/2 in. 13 ft. 8-1/2 in.
Height, packers down 4 ft. 6 in. 6 ft. 3 in.
Machine Weight, approx. 2650 lbs. 2750 lbs.
Width Over-All 8 ft. 6-1/4 in.
Width, with dual wheels one side 9 ft. 2 in.
PTO Universal Shaft 3-joint
Pick-Up Width 56 inches
Pick-Up Width Height, end of lowest position of pick-up finger 7-1/4 inches from ground
Tread Width 7 ft. 6-1/2 in.

Bale Size

Width and Height 14 x 18 inches, approx.
Length Adjustable, 12 to 50 inches, approx.

Plunger and Gear Cases

Plunger Stroke 26 inches
Operational Speed 80 strokes per minute
Gear Cases Two, equipped with tapered roller bearings

Tires

Left Hand 6.70 x 15, inflation 40 lbs.
Right Hand 5.00 x 15, inflation 28 lbs.

PTO Drive

PTO Drive Machine Equipped with combination slip and over-running clutch

Engine (Self-Powered Machine)

Model Wisconsin THD
Type 2-cylinder, air-cooled
Rating 16 hp at 2400 rpm
Fuel Tank Capacity 7.5 gals. U.S., 6.5 gals. Imp.1
Crankcase Capacity 3.5 qts. U.S., 2.9 qts. Imp.
Spark Plug Setting 0.030 inch
Magneto Point Setting 0.015 inch
Idle Speed 1000-1200 rpm
Operating Speed Approx. 2400 rpm
Cylinder Bore 3-1/4 inches
Stroke 3-1/4 inches
Piston Displacement 53.9 cu. ins.
Valve Tappet Clearance, intake, cold 0.008 inch
Valve Tappet Clearance, exhaust, cold 0.016 inch

Notes:
1 Reproduced as printed. 7.5 U.S. gallons converts to 6.2 Imperial, not 6.5. This is a small overstatement of the Imperial figure, the opposite direction from the flattened-0.8-ratio understatement seen on several other MF manuals in this batch.
All measurements are with the tailgate up, as printed in the source manual.
All specifications transcribed from the specifications section of the Massey-Ferguson MF 12 baler operator's manual, Form No. 690 672 M1, dated 6500-8/66, originally published by Massey-Ferguson. Verify against your machine's serial number before ordering parts.

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Manual code: 690 672 M1

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