Farmall M & MV Tractor Owner's Manual, 1940s–1950s (P/N 1 004 036 R1)

International Harvester’s Farmall M and MV Owner’s Manual (P/N 1 004 036 R1) covers tractor operation, routine maintenance, and minor service adjustments. Internal engine repairs are referred to dealer service rather than presented as overhaul procedures.

Printable PDF, Text Search, and Wiring Detail

Search and diagram access: PDF text search and embedded bookmarks are not available. Small wiring-reference numbers require enlargement, and some lines in the Bosch lighting diagram remain faint when enlarged.

One printable English PDF contains 109 pages total: 104 numbered pages, four unnumbered original pages comprising the covers, foreword, and logo page, plus one added introductory page. All are included in the total.

Operation, Tune-Up, and Attachment Care

These selected topics show the manual’s maintenance and operating coverage. Other subjects include cold-weather starting, tractor storage, and returning an engine to service after storage.

• Fuel system: Fuel-specific starting instructions, manifold heat and radiator-shutter control, updraft carburetor mixture adjustments, and fuel-strainer cleaning.

• Lubrication and filtration: Model-specific engine and chassis lubrication charts, periodic inspections, Donaldson oil-type air-cleaner servicing, and oil-filter element replacement.

• Ignition and valves: IHC Type H-4 magneto servicing, spark-plug and cable checks, and step-by-step instructions for magneto timing and valve-clearance adjustment.

• Cooling system: Pressure-type radiator care, thermostat operation, fan-belt adjustment and replacement, cooling-system cleaning, and water-pump packing replacement.

• Brakes and clutch: External-contracting brake adjustment and equalization, plus pedal free-travel adjustment for the single-plate dry-disk engine clutch.

• Wheels and attachments: Front-wheel bearing service, variable-tread pneumatic wheel arrangements, adjustable wide-front-axle installation, drawbar adjustment, and power take-off and belt-pulley operation.

• Electrical equipment: Delco-Remy starting and lighting maintenance, Bosch no-battery lighting care, battery checks, generator charging adjustments, and attachment-specific wiring diagrams.

Written for tractor owners needing operating and routine maintenance guidance, the manual directs more involved mechanical work to an International Harvester dealer.

Fuel-Specific Operation and Ignition Service

The operating sections distinguish distillate-gasoline, kerosene, and high-compression gasoline engines. Their different starting and manifold-heat instructions help owners select the appropriate guidance for the installed fuel configuration.

Carburetor coverage extends to removal and installation, with illustrations identifying the adjusting controls on the distillate-gasoline and high-compression versions. Main-mixture and idle-mixture adjustments are treated separately.

Magneto instructions reach breaker-arm servicing, distributor-rotor alignment, removal, and reinstallation. The H-4 magneto wiring chart identifies the spark-plug cable connections.

The manual warns that excessive lubrication of the magneto distributor bearing can contaminate the breaker-point chamber and accelerate point wear. Magneto bearing repacking and impulse-coupling removal are referred to dealer service.

Maintenance Planning and Engine Trouble Checks

The periodic-inspection schedule and lubrication charts bring routine maintenance requirements together, helping owners coordinate inspection, cleaning, and lubrication tasks. Separate chassis charts account for the different lubrication points on the two tractor models.

“Suggestions for Checking Trouble” lists possible causes of starting failure, irregular speed, power loss, overheating, and other running problems. These are symptom-based checks rather than a diagnostic flowchart.

Minor engine service includes cylinder-head-gasket tightening guidance. Connecting-rod and crankshaft bearing replacement, piston and ring work, and valve grinding are assigned to dealer service.

Cooling, Brakes, and Wheel Arrangements

Cooling-system coverage explains thermostat circulation and pressure-cap operation alongside cleaning and packing service. A faulty pressure-regulating valve calls for radiator-cap replacement rather than valve repair.

Brake equalization instructions include checking that both rear wheels respond together. The clutch section relates pedal free travel to wear and the need for adjustment.

Wheel diagrams show the Farmall-MV rim positions used to obtain different front and rear treads. The Farmall-M adjustable wide-front-axle section covers long- and short-wheelbase assembly, tread adjustment, toe-in, and lubrication. High gear remains locked out when steel wheels are fitted.

Check the tractor’s condition and support it securely before wheel or axle work; follow the manual’s precautions for rotating attachments and electrical service.

Electrical Variants and Reference Illustrations

Delco-Remy battery-based starting and lighting equipment is treated separately from Bosch no-battery lighting. Numbered wiring legends identify connections and cable colors, while rear-light illustrations distinguish the connections used by the two systems.

Generator maintenance explains third-brush charging adjustment and the importance of the light-switch ground connection. The manual warns that operating the Delco-Remy generator with its battery charging circuit disconnected can burn out the generator.

The tractor cutaway and exploded air-cleaner view support component identification. The “Variation of Specific Gravity with Temperature” chart supports temperature correction of battery hydrometer readings.

Sample Ignition, Charging, and Lubrication Data

Magneto breaker-point opening is specified as 0.013 inch with the rubbing block on the high part of the cam. Battery maintenance specifies an electrolyte specific gravity of 1.250 corrected to 80°F.

For the six-volt generator, the third-brush illustration specifies a minimum spacing of 3.2 commutator bars from the main brush. The lubrication charts give a transmission-and-differential capacity of 13 U.S. gallons with the tractor standing level.