Target User:
Owners and technicians of Case IH 1490 (David Brown) tractors seeking to perform self-maintenance and repairs.
Value Proposition:
Enables users to save time and money by performing repairs and maintenance themselves, offering detailed, step-by-step guidance.
Content Highlights:
Dozens of detailed illustrations with exploded views, condensed service data, detailed index, troubleshooting tips, maintenance schedules.
Exploded Views:
Extensive use of detailed illustrations and exploded views to clearly identify parts and assembly sequences for complex repairs.
Powertrain:
Engine, Clutch, Transmission, Differential, Final Drive, Power Take-Off (PTO).
Chassis And Steering:
Axle (Front and Rear), Brakes, Front System and Steering, Steering Gear.
Auxiliary Systems:
Cooling System, Electrical System, Lift System, Governor (Diesel, LP-Gas), LP-Gas System.
Lift System Details:
Detailed coverage of the hydraulic lift system, including components like the hydraulic pump, control valve, cylinders, and draft control mechanisms.
Axle And Front System:
Details on the front axle, steering components, kingpins, and front wheel bearings. Includes alignment procedures if applicable.
Maintenance:
Regular maintenance schedules, fluid changes, filter replacements, lubrication points.
Repair And Overhaul:
Step-by-step repair procedures for all major components and systems, including complete overhauls.
Troubleshooting:
Diagnostic guidance for common issues, symptom-based troubleshooting trees.
Engine Overhaul:
In-depth procedures for engine disassembly, cleaning, inspection of wear parts, honing, piston and ring replacement, bearing replacement, and reassembly.
Transmission Rebuild:
Detailed steps for transmission disassembly, inspection of gears, shafts, bearings, and synchronizers, and reassembly with torque specifications.
Electrical System Repair:
Covers wiring diagrams, troubleshooting starter, charging system, lighting, and auxiliary electrical components. Includes component testing methods.
Depth:
Comprehensive, covering from routine maintenance to complex overhauls, engine rebuilds, and hydraulic system diagnostics. Includes detailed torque specifications.
Diagnostic Tools:
While not listing specific tools, the manual would imply the use of standard mechanic's tools, torque wrenches, and potentially specialized hydraulic pressure gauges for diagnostics.
Component Rebuilds:
Covers rebuild procedures for major components such as the hydraulic pump, steering box, final drives, and PTO clutch packs.
Digital Requirements:
PDF format, compatible with Adobe PDF Reader for optimal display of images and graphics.
Printability:
Printable, allowing users to create physical copies for workshop use.
For Printed Copy:
Typically spiral-bound or perfect-bound for workshop durability (if printed by user).
For Printed Copy:
Recommended to print on durable paper suitable for workshop environments.
Engine Type:
Likely a robust, multi-cylinder diesel engine, common for tractors of this era and class. Specific engine model not listed but expected to be covered in detail.
Engine Power Output:
Detailed horsepower and torque figures for the specific engine variants used in the 1490 would be present in the manual. Typical for this class of tractor would be in the 60-90 HP range.
Fuel Type:
Diesel, with specific sections for LP-Gas variants as indicated in the table of contents.
Cylinder And Timing:
Covers cylinder assembly, piston and ring specifications, valve timing, and adjustment procedures.
Valve Adjustment:
Precise procedures and specifications for adjusting valve lash to ensure optimal engine performance and longevity.
Governor System:
Detailed explanation and adjustment procedures for both diesel and LP-Gas governor systems to maintain consistent engine speed under varying loads.
Transmission Type:
Likely a constant mesh or sliding gear transmission, potentially with multiple speed ranges (e.g., 8-speed or 12-speed forward gears). Specific details in manual.
Transmission Options:
May include options like a creeper gear or a powershift component, depending on the specific configuration. Manual will detail available options.
Gear Selection And Repair:
Detailed procedures for clutch engagement, gear shifting mechanisms, and internal transmission component repair and replacement.
Power Take Off Operation:
Information on operating and maintaining the PTO, including shaft types, engagement procedures, and speed selections (e.g., 540/1000 RPM). Likely also covers PTO clutch adjustments.
Tractor Size:
Typical dimensions for a utility tractor of its era. Manual will provide exact lengths, widths, and heights.
Tire Sizing:
Typical tire sizes for front and rear wheels would be specified, crucial for maintaining correct ground speed and traction.
Operating Weight:
Details on the tractor's operating weight, including front and rear axle loads. Crucial for stability and load carrying capacity.
Wheel Specifications:
Information on wheelbase, front and rear track width adjustments, and wheel bolt patterns will be included.
Roll Over Protection:
While not explicitly stated as a feature of the manual, it would likely cover safety aspects related to ROPS (Roll-Over Protective Structures) if equipped, or safety precautions during operation.
Braking System:
Detailed information on the brake system (likely dry disc or drum brakes) for safe operation and maintenance.
Operator Station Safety:
Manual will include safety warnings and procedures related to operating the tractor, emergency stops, and component handling.
Operator Interface:
Focus is on mechanical and electrical systems, not modern infotainment. Operator interface would be basic gauges and controls.
Tractor Controls:
Detailed explanation of mechanical and hydraulic controls for PTO engagement, draft control, position control for the 3-point hitch, and transmission shifting.
Electrical Diagnostics:
Comprehensive coverage of the electrical system, including wiring diagrams, component testing, and troubleshooting for lights, ignition, and other electrical ancillaries.
Engine Oil And Filter:
Specific mileage or operating hour intervals for engine oil and filter changes, critical for engine longevity. Typically 250-500 hours.
Hydraulic System:
Recommended intervals for hydraulic fluid and filter changes to maintain system performance and prevent contamination.
Engine Oil Grade:
Detailed specifications for engine oil viscosity and API service classification (e.g., SAE 15W-40 API CD or CE). Specifics in manual.
Hydraulic Fluid Type:
Specifications for hydraulic fluid (e.g., UTF - Universal Tractor Fluid, or specific ATF/ISO VG grades) and its filtration. Manual will specify.
Coolant Type:
Recommended coolant mixture (e.g., ethylene glycol based with appropriate additives) and capacity for the cooling system.
Transmission Gear Oil:
Specifications for the gearbox and differential oil, likely a GL-4 or GL-5 rated gear oil of appropriate viscosity (e.g., SAE 90).
Common Wear Points:
The manual would highlight common wear areas like clutch components, PTO splines, hydraulic pump seals, and front axle kingpins, and provide guidance on inspection and repair.
Steering Wear:
Potential wear issues in the steering box or linkage, with repair procedures outlined for play and lost motion.
Starting Problems:
Guidance on troubleshooting hard starting issues, likely related to fuel system priming, glow plugs (if applicable), or battery and starter issues.
Hydraulic Performance:
Procedures for diagnosing and rectifying common hydraulic problems such as slow lift, loss of pressure, or erratic operation.
David Brown Legacy:
The 'David Brown' designation points to the tractor's lineage from the David Brown company, a significant player in British agricultural machinery before its acquisition and integration into Case IH.
Case Ih Integration:
The Case IH 1490 represents a model developed or continued under the Case IH banner, blending Case and David Brown engineering.
David Brown 70 Series Link:
The 1490 likely shares design elements or is a successor to the David Brown 70 Series tractors, such as the 990 or 1210, reflecting a continuation of established platforms.
Manufacturing Era:
Tractors of this type and designation typically hail from the late 1970s to mid-1980s, a period of significant consolidation and development in the agricultural machinery industry.
