Segment Overview:
Steyr CVT tractors are positioned in the premium segment of the agricultural machinery market, competing with brands like Fendt, John Deere, and Claas. They are recognized for their advanced technology, comfort, and efficiency, particularly their sophisticated CVT transmission.
Key Competitors:
Fendt (Vario), John Deere (AutoPowr/IVT), Claas (TRION/AXION with TERRA TRAC), Massey Ferguson (4700/5700/6700 Series with Dyna-VT).
Cvts Technology:
The core feature is the continuously variable transmission (CVT), offering seamless acceleration and deceleration, optimal engine speed management for fuel efficiency and performance across various tasks, and precise speed control for implement operation.
Operator Comfort:
These tractors typically feature advanced cab suspension, ergonomic controls, intuitive user interfaces (often with touchscreens), and climate control, designed for long working hours.
Power Range:
The model designations (e.g., 6135, 6195) indicate a range of engine power outputs, catering to a wide spectrum of agricultural applications from medium to large-scale farming operations.
Engine Systems:
Engine overhaul, fuel system diagnosis and repair, cooling system, lubrication system, intake and exhaust systems, engine control unit (ECU) diagnostics and calibration.
Transmission Systems:
Detailed coverage of the Continuously Variable Transmission (CVT) unit, including hydrostatic drive components, planetary gear sets, control systems, hydraulic pumps and motors, and related electronic controls. Troubleshooting and repair procedures for all CVT operational modes.
Hydraulic Systems:
Main hydraulic pump, hydraulic valves, hydraulic motors, lift hydraulics (rear and front if applicable), power steering system, hydraulic oil specifications, filter replacement, and troubleshooting of hydraulic circuit issues.
Electrical Systems:
Wiring diagrams for all vehicle systems, component testing, sensor diagnostics, fuse and relay identification, lighting systems, battery and charging system, starter motor, instrument panel diagnostics, and onboard diagnostic (OBD) codes.
Drivetrain Systems:
Front and rear axles, differential locks, drive shafts, PTO (Power Take-Off) systems (rear and front if applicable), wheel hub maintenance, and driveline component troubleshooting.
Braking Systems:
Service brake system, parking brake, hydraulic brake control, brake fluid specifications, and repair procedures for brake components.
Steering Systems:
Power steering system, steering column, and steering linkage diagnostics and repair.
Cab And Chassis:
Cab mounting, interior components, heating and air conditioning (HVAC) system, body panels, fenders, and general chassis maintenance.
Routine Maintenance:
Oil change intervals, filter replacement (engine oil, fuel, hydraulic, air), lubrication points and schedules, coolant replacement, battery maintenance, tire pressure checks, and general inspection procedures.
Diagnostic Procedures:
Troubleshooting flowcharts for common symptoms, diagnostic error codes (DTCs) interpretation, sensor testing methods, and component-specific diagnostic routines.
Repair Procedures:
Step-by-step instructions for engine component replacement (e.g., injectors, turbocharger), transmission overhaul, hydraulic pump and valve replacement, axle repair, PTO repair, and electrical component repair.
Adjustment And Calibration:
CVT calibration procedures, engine idle speed adjustment, PTO engagement settings, hydraulic system pressure adjustments, and control lever calibration.
Diagnostic Capability:
Advanced diagnostic capabilities, including detailed explanations of sensor inputs, control module logic, and signal pathways, facilitating in-depth troubleshooting.
Rebuild Information:
Comprehensive information for complete engine, transmission, and hydraulic system rebuilds, including torque specifications, assembly sequences, and critical measurements.
Electrical Schematics:
Detailed and accurate electrical wiring diagrams, including component locations, harness routing, and connector pinouts, crucial for electrical diagnostics.
PDF Searchability:
Searchable PDF format allowing for quick access to specific information via keywords.
PDF Printability:
Printable PDF format, enabling users to print individual sections or the entire manual for workshop use.
Image Resolution:
High-resolution images, diagrams, and illustrations for clarity and detail.
Digital Delivery:
Delivered as a ZIP compressed file, requiring extraction to access the PDF document.
Physical Format Considerations:
While digital, the content is structured for efficient printing on standard workshop paper sizes.
Engine Manufacturer:
Typically Sisu (now AGCO Power) engines, known for their reliability and performance in heavy-duty agricultural applications.
Engine Configuration:
Inline 6-cylinder, turbocharged, intercooled diesel engines.
Power Output Range:
Approximately 130 HP (6135) to 200 HP (6195) rated power, with potential for power boost (e.g., EPM - Engine Power Management) for PTO or transport.
Torque Characteristics:
High torque at low RPMs for pulling power and efficiency, characteristic of modern agricultural diesel engines.
Fuel Injection Type:
Common Rail direct injection system, often with electronic control for precise fuel delivery and emissions management.
Emission Standards:
Likely compliant with Tier 3, Tier 4a, or Tier 4f/Stage IV emission standards, depending on the specific production year, utilizing technologies like Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), and Selective Catalytic Reduction (SCR).
Transmission Type:
Continuously Variable Transmission (CVT) as standard across all covered models.
Optional Transmissions:
N/A - CVT is the defining feature.
Cvts Operation:
Advanced control logic allowing for automatic adjustment of gear ratios to maintain optimal engine RPM for power, fuel economy, or constant ground speed. Includes features like cruise control, engine braking, and shuttle control.
Transmission Fluid Type:
Typically requires specialized tractor transmission fluid (e.g., TDTO - Transmission/Drive Train Oil) or a high-quality hydraulic fluid meeting specific Steyr/AGCO specifications. Consult manual for exact specifications (e.g., AGCO m1145, m1144).
Wheelbase:
Varies by model, but typically in the range of 2600mm to 2900mm for articulated tractors of this class.
Overall Length:
Approximately 4.5m to 5.5m, depending on the specific model and configuration.
Overall Width:
Approximately 2.5m to 3.0m (depending on tire size and fender configuration).
Operating Weight:
Typically ranges from 6,500 kg to 9,000 kg (unballasted), depending on the specific model and configuration.
Maximum Allowable Weight:
Can be significantly higher with ballast, often exceeding 10,000 kg.
Operator Station Protection:
Cabs are typically ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) compliant, providing a safe environment for the operator.
Cvts Safety:
CVT system often includes integrated safety features to prevent over-speeding or driveline shock loads. Electronic control systems monitor various parameters for safe operation.
Braking Systems:
Service hydraulic brakes, often with wet disc brakes for durability and consistent performance. Parking brake typically integrated. Some models may offer trailer brake control.
Seatbelts:
Operator seat equipped with a seatbelt for safety during operation.
Lighting:
Standard work lights, turn signals, and road lights for visibility.
Cab Electronics:
Modern cabins typically feature advanced electronic control units for transmission, hydraulics, PTO, and engine management. Many models incorporate intuitive joystick controls and digital displays for system monitoring and adjustment.
Autotrac Readiness:
Many Steyr CVT tractors are equipped or prepared for GPS guidance systems (e.g., AutoTrac) for precise field operations, reducing overlap and optimizing resource use.
Telematics:
Optional telematics systems may be available for remote monitoring of machine performance, diagnostics, and fleet management.
Isobus Compatibility:
High compatibility with ISOBUS implements, allowing for seamless integration and control of a wide range of modern farm machinery through a single interface.
Engine Oil Change:
Typically every 500 or 600 operating hours, depending on operating conditions and oil type. Consult manual for precise intervals.
Hydraulic Oil Change:
Generally every 1200 or 1500 operating hours. Filter replacement typically more frequent.
Fuel Filter Replacement:
Recommended at 250-500 hour intervals, or as indicated by a service alert.
Air Filter Maintenance:
Regular inspection and cleaning, replacement as needed, typically every 500-1000 hours or when airflow is restricted.
Engine Oil Specification:
API CJ-4 or CK-4, SAE 15W-40 or 10W-40 low-ash engine oil. Check manual for specific approvals (e.g., CNH Engine Oil MAT 3521/3522).
Transmission Hydraulic Fluid:
AGCO m1145 or equivalent UTTO/TDTO. Specific viscosity grades may apply based on ambient temperature. Refer to manual for exact specifications and capacities.
Coolant Specification:
Ethylene glycol-based coolant with OAT (Organic Acid Technology) inhibitors, often Cat EC-1 or equivalent specification. Typically a 50/50 mix with distilled water.
Cvts Potential Issues:
While robust, complex CVT systems can be sensitive to fluid contamination and require precise calibration. Issues could include hesitation, loss of drive, or error codes related to hydraulic pressure or control valve operation if not maintained properly.
Electrical Gremlins:
Complex electronic control units and extensive wiring can sometimes lead to intermittent electrical faults or sensor issues, requiring meticulous diagnostic procedures as outlined in the manual.
Hydraulic Performance:
Wear in hydraulic pumps or valves, or contamination of hydraulic fluid, can lead to reduced lift capacity, slower response times, or overheating of the hydraulic system.
