Segment:
        
        
            Agricultural tractor, utility tractor.
        
     
    
    
        
            Competitors:
        
        
            John Deere (e.g., 3020 series), International Harvester (e.g., 706 series), Ford (e.g., 4000/5000 series), Massey Ferguson (e.g., 165/175 series).
        
     
    
    
        
            Distinctive Features:
        
        
            Known for robust construction, reliable diesel power, and versatility for various farm tasks.
        
     
 
    
    
    
        
            Primary Coverage:
        
        
            All aspects of D-19 Diesel tractor operation, maintenance, and repair.
        
     
    
    
        
            Estimated Pages:
        
        
            Comprehensive (Exact count not provided, but implied to be extensive for WSM).
        
     
    
    
        
            Type:
        
        
            Workshop Service Manual (WSM)
        
     
    
    
    
    
        
            Format:
        
        
            Likely printed manual (typical for WSM), potential for digital formats like PDF.
        
     
 
    
    
    
        
            Engine Systems:
        
        
            Diesel engine overhaul, fuel system, lubrication system, cooling system, air intake system, exhaust system, starting system, electrical system (ignition, charging).
        
     
    
        
            Drivetrain Systems:
        
        
            Clutch, transmission (gearbox), differential, final drives, power take-off (PTO).
        
     
    
        
            Hydraulic Systems:
        
        
            Hydraulic pump, control valves, cylinders, remote hydraulic outlets, three-point hitch system.
        
     
    
        
            Steering And Braking:
        
        
            Steering system (mechanical/power assisted), brake system (mechanical/hydraulic), parking brake.
        
     
    
        
            Electrical Systems:
        
        
            Wiring diagrams, starter motor, alternator, battery, lighting, instrumentation.
        
     
    
        
            Chassis And Body:
        
        
            Frame, front axle, rear axle, fenders, operator's platform, controls.
        
     
    
    
        
            Maintenance:
        
        
            Routine lubrication, fluid changes, filter replacements, inspection points, scheduled maintenance intervals.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic charts, common problems and solutions, fault finding for all major systems.
        
     
    
        
            Repair And Rebuild:
        
        
            Component disassembly, assembly, overhaul procedures, torque specifications, tolerances, special tool requirements.
        
     
    
        
            Diagnostics:
        
        
            Engine performance testing, hydraulic pressure testing, electrical system checks.
        
     
    
    
        
            Depth:
        
        
            Comprehensive, covering from basic adjustments to full engine and transmission rebuilds.
        
     
 
    
    
    
        
            Format Details:
        
        
            Assuming a professional quality reprint or original manual, likely well-bound for shop use.
        
     
    
    
        
            Quality:
        
        
            High-quality reproduction, designed for durability and readability in a workshop environment.
        
     
    
    
        
            Binding:
        
        
            Professional binding (e.g., saddle-stitched, perfect bound, or spiral bound for shop use).
        
     
    
    
        
            Paper Quality:
        
        
            Durable paper stock, resistant to grease and shop wear.
        
     
 
    
    
    
        
            Make Model:
        
        
            Perkins 4.236 (common for D-19 Diesel).
        
     
    
        
            Engine Type:
        
        
            Inline 4-cylinder, naturally aspirated diesel.
        
     
    
        
            Displacement:
        
        
            Approximately 236 cubic inches (3.87 Liters).
        
     
    
    
        
            Horsepower Rated:
        
        
            Around 60-70 PTO horsepower (varies slightly by specific configuration/testing).
        
     
    
        
            Torque Peak:
        
        
            Estimated peak torque in the range of 150-170 lb-ft.
        
     
    
    
    
        
            Injection System:
        
        
            Typically rotary injection pump (e.g., CAV or Simms).
        
     
 
    
    
    
        
            Wheelbase:
        
        
            Approximately 85-90 inches.
        
     
    
        
            Length:
        
        
            Approximately 130-145 inches (excluding implements).
        
     
    
    
        
            Operating Weight:
        
        
            Around 5,500 - 6,500 lbs (unballasted).
        
     
    
        
            Drawbar Pull:
        
        
            Capable of significant drawbar pull, dependent on traction and ballast.
        
     
 
    
    
    
        
            Rollover Protection:
        
        
            ROPS (Roll-Over Protective Structure) may have been optional or a dealer add-on, not standard on all models of this era.
        
     
    
    
        
            Braking System:
        
        
            Service brakes (usually drum or disc, depending on rear axle configuration), parking brake.
        
     
    
    
        
            Operator Station:
        
        
            Open operator station, safety considerations include guards and proper operating procedures detailed in the manual.
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Typically every 100-150 operating hours, depending on operating conditions.
        
     
    
        
            Fuel Filter Replacement:
        
        
            Recommended at regular intervals (e.g., 250 hours) or when issues arise.
        
     
    
        
            Air Filter Service:
        
        
            Service based on operating environment (e.g., daily inspection in dusty conditions).
        
     
    
    
        
            Engine Oil Type:
        
        
            API CD or CE service category, SAE 30 or 15W-40 depending on temperature.
        
     
    
        
            Engine Oil Capacity:
        
        
            Approximately 9-10 quarts (U.S.) with filter.
        
     
    
        
            Hydraulic Fluid Type:
        
        
            Allis-Chalmers specified Type 'U' fluid or equivalent (e.g., UTF - Universal Tractor Transmission fluid).
        
     
    
        
            Transmission Fluid Type:
        
        
            Often shares hydraulic fluid reservoir; check manual for specific transmission oil if separate.
        
     
    
    
        
            Common Wear Items:
        
        
            Clutch wear, hydraulic system leaks, starter motor issues, injector pump calibration.
        
     
    
        
            Engine Reliability:
        
        
            Perkins engines are generally robust, but require diligent maintenance; ring sealing, valve guides can wear over time.
        
     
    
        
            Electrical Aging:
        
        
            Original wiring harnesses can degrade, requiring inspection and potential replacement.
        
     
 
    
    
    
        
            Brand History:
        
        
            Allis-Chalmers was a major American manufacturer of agricultural machinery, construction equipment, and electrical equipment.
        
     
    
    
        
            Series Context:
        
        
            The D-19 was part of Allis-Chalmers' popular 'D' series of tractors, known for their distinctive orange color.
        
     
    
    
        
            Production Years:
        
        
            Typically produced from the early to mid-1960s (e.g., 1963-1967 range).
        
     
    
        
            Manufacturing Location:
        
        
            United States (e.g., Milwaukee, Wisconsin).