Tractor Segment:
        
        
            Mid-range utility and row-crop tractor.
        
     
    
        
            Target Audience:
        
        
            Farmers, agricultural businesses, collectors, and restoration specialists.
        
     
    
    
        
            Competitors At Launch:
        
        
            John Deere 3020, International Harvester 706, Ford 5000, Massey Ferguson 65.
        
     
    
    
        
            Engine Options:
        
        
            Offered with both gasoline and diesel engine variants.
        
     
    
        
            Transmission Options:
        
        
            Typically equipped with a constant mesh gearbox.
        
     
    
        
            Hydraulic Lift:
        
        
            Standard or optional advanced hydraulic lift system for implements.
        
     
 
    
    
    
        
            Overall Coverage:
        
        
            Comprehensive service and repair instructions for the Allis-Chalmers D-19 tractor.
        
     
    
        
            Geographic Coverage:
        
        
            Worldwide (used by mechanics globally).
        
     
    
    
        
            Estimated Page Count:
        
        
            Varies (typical for comprehensive service manuals, often 500+ pages when printed).
        
     
    
    
        
            Manual Type:
        
        
            Workshop Manual / Service Manual / Repair Manual
        
     
    
    
 
    
    
    
        
            Engine:
        
        
            Detailed information on engine overhaul, diagnostics, fuel system, lubrication, cooling system, and starting system.
        
     
    
        
            Transmission:
        
        
            Service and repair procedures for the transmission, including clutch, gearbox, and differential.
        
     
    
        
            Powertrain:
        
        
            Covers final drives, power take-off (PTO), and other drivetrain components.
        
     
    
        
            Hydraulic System:
        
        
            Maintenance and repair of the hydraulic lift system, pumps, valves, and cylinders.
        
     
    
        
            Electrical System:
        
        
            Wiring diagrams, troubleshooting, starter, generator/alternator, lighting, and instrument panel.
        
     
    
        
            Steering System:
        
        
            Repair and adjustment of the steering mechanism.
        
     
    
        
            Braking System:
        
        
            Service and maintenance for the braking system.
        
     
    
        
            Front Axle:
        
        
            Service and overhaul of the front axle and steering components.
        
     
    
        
            Rear Axle:
        
        
            Maintenance and repair of the rear axle and differential assembly.
        
     
    
        
            Chassis And Frame:
        
        
            Information on chassis components and frame integrity.
        
     
    
        
            Operator Station:
        
        
            Details on the operator's seat, controls, and platform.
        
     
    
    
        
            Routine Maintenance:
        
        
            Scheduled maintenance checks, lubrication points, and fluid changes.
        
     
    
        
            Engine Overhaul:
        
        
            Step-by-step instructions for complete engine disassembly, inspection, repair, and reassembly.
        
     
    
        
            Transmission Repair:
        
        
            Detailed procedures for transmission component replacement and adjustment.
        
     
    
        
            Hydraulic Troubleshooting:
        
        
            Diagnostic steps for identifying and rectifying hydraulic system faults.
        
     
    
        
            Electrical Diagnostics:
        
        
            Systematic approaches to diagnosing electrical issues, including circuit analysis.
        
     
    
        
            Component Rebuild:
        
        
            Instructions for rebuilding key components like the water pump, oil pump, and carburetor.
        
     
    
        
            Troubleshooting Guides:
        
        
            Common problems and their diagnostic solutions.
        
     
    
        
            Specifications And Tolerances:
        
        
            Precise measurements for critical engine and component parts.
        
     
    
        
            Torque Specifications:
        
        
            Required torque values for all critical fasteners.
        
     
    
    
        
            Depth Of Coverage:
        
        
            In-depth technical detail suitable for professional mechanics and serious hobbyists.
        
     
    
        
            Diagnostic Capability:
        
        
            Provides diagnostic charts and troubleshooting trees for efficient problem identification.
        
     
    
        
            Rebuild Complexity:
        
        
            Covers complete unit rebuilds, from basic adjustments to full engine and transmission overhauls.
        
     
 
    
    
    
        
            File Format:
        
        
            PDF (Portable Document Format)
        
     
    
    
        
            Print Quality:
        
        
            High-resolution, suitable for printing with clear diagrams and text.
        
     
    
    
        
            Binding Type:
        
        
            N/A (Digital PDF Download)
        
     
    
    
        
            Paper Type:
        
        
            N/A (Digital PDF Download)
        
     
    
    
        
            Searchable Text:
        
        
            Likely includes searchable text for quick information retrieval (dependent on PDF creation).
        
     
 
    
    
    
        
            Diesel Engine Model:
        
        
            Allis-Chalmers 3-cylinder Diesel (e.g., D-179 or similar)
        
     
    
        
            Gasoline Engine Model:
        
        
            Allis-Chalmers 6-cylinder gasoline engine (e.g., 226 cubic inch)
        
     
    
    
        
            Diesel Horsepower Drawbar:
        
        
            Approx. 50-60 HP (drawbar HP)
        
     
    
        
            Diesel Horsepower Belt:
        
        
            Approx. 60-70 HP (belt HP)
        
     
    
        
            Gasoline Horsepower Drawbar:
        
        
            Approx. 45-55 HP (drawbar HP)
        
     
    
        
            Engine Displacement Diesel:
        
        
            Approx. 226 cubic inches (3.7 Liters)
        
     
    
        
            Engine Displacement Gasoline:
        
        
            Approx. 226 cubic inches (3.7 Liters)
        
     
    
    
        
            Diesel Fuel System:
        
        
            Direct injection with injection pump (e.g., CAV or Roosa-Master) and injectors.
        
     
    
        
            Gasoline Fuel System:
        
        
            Carburetor (e.g., Marvel-Schebler) and ignition system.
        
     
    
    
        
            Cooling Type:
        
        
            Water-cooled with thermostat and fan.
        
     
    
    
        
            Oil Type Diesel:
        
        
            API CD or SE, SAE 30 or 10W-30 (refer to manual for specific viscosity based on temperature).
        
     
    
        
            Oil Type Gasoline:
        
        
            API SE, SAE 10W-30 or 10W-40.
        
     
 
    
    
    
        
            Transmission Type:
        
        
            Allis-Chalmers 'Constant Mesh' Gearbox
        
     
    
        
            Number Of Speeds:
        
        
            Typically 8 forward speeds and 2 reverse speeds.
        
     
    
    
        
            Optional Transmission Features:
        
        
            Some models may have had shuttle shift options or variations.
        
     
    
    
        
            Clutch Type:
        
        
            Dry single or dual-plate clutch.
        
     
    
        
            Transmission Oil Type:
        
        
            API GL-4, SAE 90 (or specific Allis-Chalmers fluid recommendation).
        
     
 
    
    
    
        
            Wheelbase:
        
        
            Approx. 84 inches (2134 mm)
        
     
    
        
            Length:
        
        
            Approx. 130 inches (3302 mm)
        
     
    
        
            Width:
        
        
            Approx. 70 inches (1778 mm) at rear axle
        
     
    
    
        
            Operating Weight Diesel:
        
        
            Approx. 5,500 - 6,500 lbs (2495 - 2948 kg)
        
     
    
        
            Front Tire Size:
        
        
            5.50-16 or 6.00-16
        
     
    
        
            Rear Tire Size:
        
        
            13.6-28 or 14.9-28
        
     
    
        
            Wheel Bolt Pattern:
        
        
            Typically 6-bolt pattern on rear wheels.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Every 100-150 operating hours or annually.
        
     
    
        
            Transmission Oil Change:
        
        
            Every 500-1000 operating hours or as specified in the manual.
        
     
    
        
            Fuel Filter Replacement:
        
        
            As needed, or every 250-500 hours.
        
     
    
        
            Air Filter Maintenance:
        
        
            Check daily, clean or replace as needed based on operating conditions.
        
     
    
    
        
            Hydraulic Fluid Type:
        
        
            Tractor Hydraulic Fluid (THF) meeting Allis-Chalmers specifications (e.g., Allis-Chalmers Type 645 or equivalent).
        
     
    
        
            Coolant Type:
        
        
            Ethylene Glycol based antifreeze/coolant, 50/50 mix with distilled water.
        
     
    
    
        
            Common Wear Items:
        
        
            Clutch wear, hydraulic pump efficiency degradation, front axle kingpins, starter motor issues.
        
     
    
        
            Diesel Engine Specifics:
        
        
            Glow plug issues (if applicable), injector pump calibration.
        
     
    
        
            Gasoline Engine Specifics:
        
        
            Carburetor adjustment, ignition timing, valve seat wear.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            Allis-Chalmers Manufacturing Company, a major American agricultural machinery manufacturer.
        
     
    
    
        
            Production Period:
        
        
            Produced from the late 1950s into the early 1960s (approx. 1959-1963).
        
     
    
        
            Predecessors:
        
        
            Successor to models like the Allis-Chalmers WD-45.
        
     
    
        
            Successors:
        
        
            Part of the 'D' series line which transitioned to other models like the D-17, D-15, and later the 170/180 series.
        
     
    
    
        
            Manufacturing Location:
        
        
            Primarily manufactured in the United States, likely at Allis-Chalmers facilities in Wisconsin.