Target Audience:
Professional technicians, DIY mechanics with basic mechanical and electrical knowledge.
Value Proposition:
Provides factory-level repair and maintenance information, enabling owners to perform complex tasks and make informed repair decisions.
Content Style:
Step-by-step repair procedures, critical specifications, illustrations/pictures, maintenance guidelines.
Delivery Method:
Instant Download
Primary Coverage:
Service, Repair, Maintenance
Secondary Coverage:
Troubleshooting, Specifications, Overhaul
Estimated Pages:
Varies based on specific edition, typically extensive for a comprehensive service manual
Type:
Service and Repair Manual
Synonymous Terms:
Workshop Manual, Factory Service Manual, Repair Manual
Powertrain:
Engine (diesel), Transmission (gearbox, PTO), Hydraulics, Axles (front and rear), Differentials
Electrical:
Starting system, Charging system, Lighting, Instrumentation, Wiring diagrams
Chassis:
Braking system (mechanical, hydraulic), Steering system, Suspension (front axle)
Ancillary:
Fuel system, Cooling system, Exhaust system, PTO (Power Take-Off) systems
Bodywork:
Body panels, fenders, operator's platform, cab (if equipped) inspection and maintenance.
Maintenance:
Lubrication charts, Scheduled maintenance, Fluid changes, Filter replacement
Repair:
Engine overhaul, Transmission repair, Hydraulic system diagnostics and repair, Axle and differential rebuild, Brake system overhaul, Steering component replacement
Diagnostics:
Troubleshooting guides, Symptom-based diagnostics, Component testing procedures
Disassembly Assembly:
Detailed step-by-step procedures for component removal, disassembly, cleaning, inspection, and reassembly.
Troubleshooting:
Systematic fault finding for engine, transmission, hydraulics, and electrical systems.
Depth:
Comprehensive, suitable for professional technicians and advanced DIY mechanics. Covers routine maintenance to complete engine and transmission rebuilds.
Illustrations:
Includes illustrations, diagrams, and photographs to aid in repair procedures.
Engine Type:
David Brown Diesel Engine (specific model varies by 1594 variant, likely AD4/55 or similar)
Displacement:
Typically around 3.5 to 4.0 liters (dependent on specific engine variant)
Horsepower:
Varies by variant, generally in the 70-90 HP range.
Torque:
Specific torque figures would be detailed in the manual.
Fuel Injection:
Direct injection (typical for David Brown diesel engines of this era)
Cooling Method:
Water-cooled
Oil Type:
Specific oil grades and capacities detailed in the manual (likely SAE 15W/30 or 10W/30 diesel engine oil).
Transmission Type:
Manual gearbox with multiple forward and reverse gears.
Gear Configurations:
Typically 12 forward speeds and 4 reverse speeds, often with a synchronized creeper gear option.
Pto:
Standard Power Take-Off (PTO) with multiple speeds (e.g., 540/1000 RPM) and potentially a ground speed PTO.
Hydraulic System:
Integrated hydraulic system for implement control (e.g., draft control, position control) and external hydraulics (remote valves).
Transmission Oil:
Specific oil specifications and capacities for gearbox, rear axle, and hydraulic system detailed in the manual. Often a universal tractor fluid (UTF) or specific gear oil.
Wheelbase:
Dimensions vary by specific configuration, manual will provide exact figures.
Length:
Dimensions vary by specific configuration, manual will provide exact figures.
Width:
Dimensions vary by specific configuration, manual will provide exact figures.
Operating Weight:
Weight specifications will be detailed in the manual, depending on configuration and fitted implements.
Rollover Protection:
ROPS (Roll Over Protection Structure) was often an optional or standard fitment depending on market and regulations. Manual will cover its inspection and maintenance.
Braking System:
Mechanical and hydraulic braking systems. Manual details operation, adjustment, and repair.
Operator Station:
Ergonomics and safety features of the operator's station, including control layout and seating.
Features:
Basic operator instrumentation (tachometer, temperature gauge, oil pressure gauge, fuel gauge). No modern infotainment systems.
Features:
No electronic driver assistance systems. Focus is on mechanical and hydraulic controls.
Features:
No electronic connectivity features.
Engine Oil Change:
Typically every 250-500 operating hours, manual will specify exact interval and oil type.
Transmission Oil Change:
Typically every 500-1000 operating hours, manual will specify exact interval and oil type.
Hydraulic Filter Replacement:
Often tied to engine oil changes or specific operating hours. Manual will provide guidance.
Engine Oil Grade:
Refer to manual for specific API classification and viscosity grade (e.g., API CD/CE, SAE 15W-40 or 10W-30).
Transmission Hydraulic Fluid:
Refer to manual for specific UTF (Universal Tractor Fluid) or gear oil specifications and compatible brands.
Common Wear Items:
Clutch wear, hydraulic pump wear, PTO clutch engagement, front axle kingpins, and linkage wear are common on tractors of this age and design. Manual will detail inspection and replacement.
Electrical Gremlins:
Older wiring harnesses can degrade, leading to intermittent issues. Manual's wiring diagrams are crucial for troubleshooting.
Manufacturer:
David Brown Tractors Ltd., a British agricultural machinery manufacturer.
Ownership Changes:
David Brown was acquired by Tenneco in 1970, becoming part of the Case IH portfolio. Models like the 1594 were produced during this transitionary period.
Series:
Part of the '94 Series' or '90 Series' of tractors, known for their robust construction and reliable performance.
Production Years:
The 1594 was produced in the late 1970s and early 1980s.
Manufacturing Location:
Typically manufactured in the United Kingdom.
