Target Audience:
Owners, operators, maintenance personnel, and professional mechanics working with IH David Brown 1390 and 1394 tractors.
Key Selling Point:
Provides comprehensive, factory-level repair and maintenance information for cost-effective and accurate upkeep of these agricultural workhorses.
Information Accuracy:
Utilizes the same detailed information trusted by professional technicians, ensuring accuracy in repairs and diagnostics.
Manual Coverage Scope:
Complete factory service, repair, and troubleshooting procedures for IH David Brown 1390 and 1394 tractors.
Estimated Page Count:
Hundreds of pages (specific count not provided, but described as very detailed).
Manual Format:
Digital Download (PDF)
Language:
English (implied by product description and typical manual availability)
Operating Systems:
Compatible with all Windows and MAC computers, tablets, and smartphones.
Searchability:
PDF format typically allows for text searching, significantly improving the efficiency of finding specific information.
Engine Systems:
Engine overhaul, fuel system (injection pump, injectors, fuel lines), cooling system, lubrication system, starting system, exhaust system.
Transmission And Drivetrain:
Gearbox overhaul (including power shift if applicable), clutch assembly, differential, final drives, PTO (Power Take-Off) system.
Hydraulic System:
Hydraulic pump, control valves, lift arms, hydraulic cylinders, troubleshooting hydraulic issues, fluid maintenance.
Electrical System:
Wiring diagrams, starter motor, alternator, battery, lighting systems, instrument panel, troubleshooting electrical faults.
Braking System:
Brake pedal assembly, brake master cylinder, brake actuators, brake fluid specifications, brake adjustment and repair.
Steering System:
Power steering system (if equipped), steering linkages, steering column, troubleshooting steering.
Chassis And Body:
Front axle, rear axle, wheel bearings, mounting of fenders, operator’s platform, hood assembly, general chassis repairs.
Chassis And Suspension:
Front wheel drive (if equipped), steering geometry, linkage wear, and adjustment procedures.
Maintenance Procedures:
Routine servicing, lubrication points, filter replacement intervals, fluid level checks, pre-operation checks.
Repair Procedures:
Step-by-step instructions for all major component overhauls and component replacements.
Troubleshooting Guides:
Diagnostic procedures for identifying and rectifying common and uncommon issues across all systems.
Technical Specifications:
Torque values, clearance measurements, timing settings, fluid capacities, and other critical data.
Testing And Adjustment:
Procedures for setting valve clearances, injection pump timing, hydraulic system pressures, and clutch adjustments.
Depth Of Coverage:
Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds, suitable for professional mechanics.
Diagram Utility:
Exploded diagrams are invaluable for identifying parts and understanding assembly sequences during repairs.
Printable:
Yes, individual pages or the entire manual can be printed.
Usage License:
Lifetime use, no expiry dates, no renewal fees, usable on multiple devices.
Content Features:
Detailed photos, diagrams, exploded views, step-by-step instructions.
Engine Type:
Diesel (likely Perkins or a proprietary IH engine of the era)
Displacement 1390:
Typically around 3.9 Liters (236 cubic inches) for engines powering this class of tractor (e.g., Perkins 4.248).
Displacement 1394:
Likely similar to the 1390, possibly with a slightly higher output version or different engine option.
Horsepower 1390:
Estimated around 75-85 PTO horsepower (specific figures would be in the manual).
Horsepower 1394:
Likely in a similar range to the 1390, possibly slightly higher depending on engine tuning and configuration.
Fuel Injection:
Mechanical fuel injection system, likely with rotary or inline injection pumps (e.g., Bosch, CAV).
Cooling Type:
Liquid-cooled, pressurized system with radiator and fan.
Oil Type Specification:
Multi-grade engine oil, likely API CD or CE rated (specific SAE viscosity and API classification to be detailed in the manual).
Gearbox Type:
Manual gearbox, likely with 8 or 12 forward gears and 4 or 8 reverse gears.
Optional Gearbox:
Some models may have offered a power shift or torque amplifier (TA) option for enhanced gearing flexibility.
Clutch Type:
Dual-stage clutch (one for transmission, one for PTO).
Pto Type:
Independent PTO, likely 540/1000 RPM selectable via gearbox configuration.
Operator Interface:
Basic operator controls focused on functionality and durability. Instrument panel typically includes tachometer, engine temperature, oil pressure, and fuel gauge.
Operator Comfort Features:
Operator's platform with seating, often with basic suspension. Roll Over Protection Structure (ROPS) may be standard or optional depending on the year and market.
Auxiliary Ports:
Standard hydraulic remotes for implements, PTO shaft, and drawbar are the primary connectivity features.
Service Intervals Engine Oil
Engine Oil Change Interval:
Typically 250 hours of operation, but the manual will specify the exact interval and filter part numbers.
Service Intervals Fuel Filter
Fuel Filter Replacement:
Recommended at oil change intervals or as needed based on fuel quality.
Service Intervals Air Filter
Air Filter Service:
Regular inspection and cleaning/replacement based on operating conditions, interval typically 250-500 hours.
Hydraulic Fluid Type:
Universal Tractor Transmission Oil (UTTO) or specific IH hydraulic fluid specification. Capacity typically around 30-40 liters.
Transmission Fluid Type:
Refer to the manual for specific UTTO or gear oil requirements. Capacity will vary by transmission type.
Common Wear Points:
Potential wear in transmission synchros, PTO engagement, and hydraulic system seals. Steering components can also be a wear item.
Electrical Reliability:
Older wiring harnesses can degrade; attention to grounds and connections is often beneficial.
Importance Of Manual:
Crucial for adherence to lubrication points, torque specifications, and correct fluid types to prevent premature wear and failure.
Ih David Brown Legacy:
David Brown tractors were known for their robust construction and reliable engineering, integrated into the IH product line after acquisition.
Series Context:
The 1390/1394 models represent the mid-to-high horsepower range of David Brown tractors during the late 1970s and 1980s, often featuring improved operator comfort and features over earlier models.
Production Period Estimate:
Likely produced from the late 1970s through the 1980s.
