The Fendt 933 Vario, part of the 300 Series Vario generation, represents a premium agricultural tractor engineered for demanding professional applications. Produced during the mid-2000s to early 2010s, this model is distinguished by its advanced Vario continuously variable transmission, a powerful Deutz inline 6-cylinder turbocharged engine, and a sophisticated hydraulic system. Its robust design, coupled with exceptional operator comfort and cutting-edge electronic control systems, positions it as a high-performance machine competing with other leading brands in the high horsepower segment. The Fendt 933 Vario is built for reliability and efficiency, offering a unique blend of power and precision for modern large-scale farming operations.
This comprehensive factory service repair manual provides full tractor service and repair coverage for the Fendt 933 Vario. It details step-by-step repair instructions, troubleshooting guides, diagnostic procedures, maintenance schedules, and assembly/disassembly processes for all major systems, including the engine, Vario transmission, axles, brakes, PTO, steering, and hydraulics. The manual also includes essential technical specifications, special tool requirements, wiring diagrams, and hydraulic schematics. Its purpose is to equip owners, mechanics, and technicians with the necessary knowledge to maintain, diagnose, and repair the tractor effectively, ensuring optimal performance and longevity.
Generation:
300 Series Vario
Engine Code Designation:
COM III (likely referring to Tier 3/Stage III A emissions compliance)
Market Position:
High-performance, premium agricultural tractor for demanding professional applications, known for its advanced Vario continuously variable transmission technology and operator comfort.
Competitive Analysis:
Competes with other leading premium tractor brands like John Deere, Claas, and Case IH in the high horsepower segment. Key competitive advantages include its advanced powertrain (Vario transmission), sophisticated hydraulics, and ergonomic cab design.
Key Features:
Fendt Vario continuously variable transmission, high-performance Deutz engine, advanced hydraulic system, spacious and ergonomic cab, comprehensive electronic control systems, robust chassis and axle design.
Coverage Areas:
Full Tractor Service and Repair
Page Count:
Estimated 1000+ pages (typical for comprehensive tractor service manuals)
Manual Type:
Factory Service Repair Manual
Systems Covered:
Engine, Transmission (Vario CVT), Axle Drive, Brakes, PTO (Front & Live), Front Wheel Drive, Steering, Air Conditioning, CAB, Power Lift (Electro-Hydraulic Control, Hydraulic Lift), Compressed Air System, Electrical System (including Starter Lockout), Hydraulic Pumps (LS & Steering), Hydraulic Equipment (Connections, Central Control Block, Valve Fitting)
Procedures Included:
Step-by-step repair instructions, troubleshooting guides, diagnostic procedures, maintenance schedules, assembly/disassembly procedures, special tool requirements, wiring diagrams, hydraulic schematics, engine tuning and adjustments
Technical Depth:
Comprehensive (covering from basic maintenance to complete engine and transmission overhauls, advanced diagnostics, and component-level repair)
File Format Details:
PDF, searchable text, high-resolution diagrams
Print Quality:
High-quality digital reproduction suitable for printing
Binding Type:
N/A (Digital Format - PDF)
Paper Type:
N/A (Digital Format - PDF)
Engine Manufacturer Model:
Deutz (likely a Deutz TCD 2012 or 2013 series, specific model number not provided but consistent with Tier 3/Stage III A compliance)
Engine Type:
Inline 6-cylinder, turbocharged, intercooled diesel engine
Rated Horsepower:
Approximately 330 HP (as indicated by model number 933)
Peak Torque:
Specific torque figures not provided, but expected to be high to match horsepower for heavy draft work.
Fuel System Type:
Common Rail Diesel Injection (CRDI) system, optimized for performance and fuel efficiency.
Cooling System:
Liquid-cooled, pressurized system with efficient radiator and fan arrangement.
Lubrication System:
Pressurized full-flow lubrication system with oil filter and cooler.
Transmission Type:
Fendt Vario continuously variable transmission (CVT) - a hallmark of Fendt tractors, allowing infinite speed adjustment without gears.
Transmission Control:
Electronic control unit (ECU) managing hydraulic pump and motor displacement for seamless speed and power management.
Transmission Features:
Independent PTO operation, cruise control, engine-transmission synchronization, load sensing capabilities for optimized power delivery.
Axle Drive Type:
Heavy-duty planetary final drives for both front and rear axles, providing high torque multiplication and durability.
Brake System Type:
Wet multi-disc brakes on rear axle, typically integrated with transmission oil, offering high braking efficiency and long service life. Front axle may have integrated brakes or rely on transmission braking.
Overall Length:
Specific dimensions not provided, but typically in the range of 5.5-6.5 meters for this class of tractor.
Overall Width:
Specific dimensions not provided, but designed to meet road legal limits (typically around 2.5-3 meters).
Wheelbase:
Specific dimensions not provided, but substantial to ensure stability under load.
Operating Weight:
Typically in the range of 10,000 - 12,000 kg, depending on configuration and options.
Gross Vehicle Weight:
Significantly higher than operating weight to account for ballast and implements.
Safety Ratings:
Designed to meet stringent agricultural machinery safety standards (e.g., ISO standards) for operator protection and machine stability.
Active Safety Features:
Advanced braking system, Electronic Stability Control (ESC) if equipped, robust steering system, integrated lighting systems.
Passive Safety Features:
ROPS (Roll-Over Protective Structure) integrated into the cab, seatbelts, shatter-resistant cab glass, robust chassis construction.
Infotainment System:
While not a car, Fendt cabs offer advanced climate control, ergonomic control interfaces, and integrated information displays for tractor functions. Specific infotainment options might include radio and basic display features.
Driver Assistance Features:
Vario transmission offers cruise control, speed hold functions, and automated engine-transmission management. Options may include GPS guidance integration and autosteer capabilities.
Connectivity:
Early models may have limited connectivity. Later versions could incorporate telematics for remote monitoring and diagnostics (e.g., AGCOMMAND).
Electrical System Overview:
Comprehensive 12V electrical system powering engine controls, transmission management, hydraulics, lighting, and cabin accessories. Features detailed wiring diagrams.
Diagnostic Program:
Manual mentions 'Serdia-Deutz Engine Diagnostics Program,' indicating the need for specialized software and interface for engine and potentially transmission fault code reading and analysis.
Engine Oil Change Interval:
Typically 500 hours or annually, but refer to manual for exact specification and oil type.
Transmission Fluid Change Interval:
Often 2000 hours or bi-annually, but Fendt Vario transmission fluid is a specialized product and requires strict adherence to manual recommendations.
Hydraulic Fluid Change Interval:
Typically 1000-2000 hours or bi-annually, depending on operating conditions and fluid type.
Engine Oil Specification:
Requires high-quality API CI-4/CJ-4 or ACEA E7/E9 rated synthetic diesel engine oil. Specific viscosity grade (e.g., 10W-40) will be detailed in the manual.
Transmission Fluid Specification:
Fendt Vario transmission fluid is a highly specialized synthetic fluid. Using incorrect fluid can lead to catastrophic transmission failure. The manual will specify the exact AGCO part number and fluid type (e.g., Fendt Vario Gear Oil).
Hydraulic Fluid Specification:
Typically a high-quality UTF (Universal Tractor Transmission Fluid) or a dedicated tractor hydraulic fluid meeting ISO 11158 Category HV or similar specifications. Manual will specify AGCO part number.
Coolant Specification:
Ethylene glycol-based antifreeze/coolant with appropriate corrosion inhibitors. Manual will specify Fendt-recommended coolant type and mix ratio.
Common Issues:
While Fendt tractors are known for reliability, potential issues in high-hour machines can include wear on Vario transmission components (requiring specialized service), hydraulic system leaks, and electronic control unit (ECU) glitches. Routine maintenance is key to preventing these.
Special Tools Coverage:
Manual lists required special tools for specific repairs, including diagnostic tools, hydraulic system testers, and precision measuring instruments.
Brand Heritage:
Fendt, a brand of AGCO Corporation, has a long-standing reputation for engineering excellence, innovation, and premium quality in agricultural machinery, particularly known for pioneering the Vario transmission.
Model Evolution:
The 900 Vario series represents Fendt's flagship high-horsepower tractor line, continuously evolving with new engine technologies, transmission improvements, and integrated electronic control systems to meet the demands of modern large-scale farming.
Production Period:
The 'COM III' designation suggests production likely falls within the mid-2000s to early 2010s, corresponding to Tier 3/Stage III A emissions regulations.
Brand Awards:
Fendt tractors consistently receive industry awards for innovation, design, and performance, often recognized at major agricultural trade shows like Agritechnica for their Vario technology.
