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Manual Coverage
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Systems Covered
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Engine Systems:
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Detailed repair and overhaul of engine components, including fuel system, lubrication system, cooling system, and exhaust system.
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Transmission Systems:
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Comprehensive coverage of transmission repairs, adjustments, and overhauls.
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Hydraulic Systems:
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Detailed procedures for hydraulic system maintenance, troubleshooting, and repair, including pumps, valves, and cylinders.
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Electrical Systems:
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Extensive coverage including troubleshooting, diagnostics, and repair of the electrical system, supported by detailed wiring diagrams.
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Drivetrain Systems:
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Coverage of clutch, differential, axles, and final drives.
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Steering Systems:
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Procedures for steering system maintenance and repair.
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Braking Systems:
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Detailed instructions for brake system maintenance, adjustment, and repair.
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Chassis And Frame:
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Information related to chassis components and structural integrity.
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Operator Controls:
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Coverage of operator controls and their functionality.
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Procedures Included
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Maintenance:
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Scheduled maintenance, lubrication, fluid changes, and general upkeep procedures.
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Diagnostics:
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Comprehensive diagnostic procedures for all major systems.
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Repair:
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Step-by-step repair instructions for virtually all components and systems.
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Rebuild:
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Detailed procedures for rebuilding engines, transmissions, hydraulic components, and more.
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Refurbishment Restoration:
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Guidance for restoring the tractor to optimal working condition.
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Troubleshooting:
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Specific troubleshooting sections for common and uncommon issues.
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Technical Depth
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Depth:
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Full spectrum, from basic maintenance for DIY mechanics to in-depth diagnostic and rebuild procedures for professional technicians.
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Engine Specifications
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Primary Engine
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Engine Options:
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The 826 Tractor was available with both diesel and gasoline engine options. Diesel typically featured the D-282 or D-310, while gasoline models used a C-201 or C-221 engine. Specific details within the manual would cover these variants.
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Performance
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Diesel Engine Details:
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Diesel engines (e.g., D-310) typically produced around 84 PTO horsepower and 72 drawbar horsepower, with torque figures relevant to agricultural work. The manual would detail specific power curves and operational parameters.
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Fuel System
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Diesel Fuel System:
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Covers injection pumps (e.g., CAV), injectors, fuel filters, and associated lines and components for diesel models.
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Gasoline Fuel System:
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Covers carburetors, ignition systems, fuel pumps, and filters for gasoline models.
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Cooling System
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Cooling System Type:
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Pressurized, coolant-based system with radiator, fan, water pump, and thermostat. Manual covers flushing, refill procedures, and component replacement.
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Lubrication System
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Oil Specifications:
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The manual would specify required engine oil viscosity grades (e.g., SAE 30 for diesel, SAE 10W-30 for gasoline, depending on ambient temperature) and API service classifications (e.g., CD for diesel). It would also detail oil filter part numbers and capacities.
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Transmission
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Standard
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Gearbox Type:
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Likely equipped with a 10-speed or 12-speed manual transmission, often a constant mesh gearbox, with a high-low range selector for total speeds. Options might include a torque amplifier (TA) or power shift transmission.
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Optional
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Torque Amplifier:
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The Torque Amplifier (TA) was a common option, effectively providing a 20-speed or 24-speed transmission, allowing shifting under load without clutching. The manual would detail its operation, maintenance, and repair.
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Features
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Transmission Fluid:
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Manual would specify the correct transmission and hydraulic fluid type, likely IH Hy-Trans or equivalent, and its capacity. It would detail fluid change intervals and filter replacement.
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Maintenance
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Service Intervals
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Engine Oil Change:
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Typically every 100-200 operating hours, depending on application and oil type used. Manual would provide exact intervals and oil capacity.
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Transmission Hydraulic Fluid Change:
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Usually every 600-1200 operating hours. Manual would detail fluid type, capacity, and filter replacement intervals.
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Air Filter Service:
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Service or replacement based on operating conditions, often indicated by loss of power or restriction warnings. Manual would detail cleaning and replacement procedures.
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Fluid Specifications
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Hydraulic Fluid Type:
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IH Hy-Trans or equivalent high-quality tractor hydraulic fluid with excellent shear stability and anti-wear properties. Capacity around 10-15 gallons.
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Coolant Type:
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A mixture of ethylene glycol antifreeze and water, typically a 50/50 ratio for optimal freeze protection and corrosion inhibition. Manual would specify the required type and capacity.
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Known Issues
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Common Wear Items:
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Potential wear on clutch packs, Torque Amplifier components, hydraulic pumps and seals, and PTO clutch discs. Manual would provide diagnostic and repair procedures for these.
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Electrical Problems:
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Aging wiring harnesses, corroded connections, and starter/alternator issues can arise. The manual's detailed wiring diagrams are crucial for troubleshooting.
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