Target Audience:
First-time owners, amateur mechanics, professional technicians, and agricultural workshops.
Purpose:
To provide comprehensive guidance for maintaining, troubleshooting, and repairing the Yanmar EG 907 HMT Diesel Tractor, ensuring optimal performance and longevity.
Value Proposition:
Offers detailed, system-specific information, including essential technical data and wiring diagrams, empowering users to perform accurate diagnostics and repairs, thereby saving time and money on premature failures.
Readability:
Designed for easy reading, catering to a wide range of technical expertise.
Completeness:
Provides all necessary information for correct procedure execution.
Maintenance Focus:
Emphasizes the importance of routine and preventive maintenance for cost savings and reliability.
Systems Covered:
Engine, Transmission, Damper Disc, Clutch, High/Low Shift, Dual Speed Turn, Front Axle, Rear Axle, PTO, Power Steering, CAN Meter, Starter/Charging/Fuel Circuit, Warning Circuit, Safety Circuit, Cabin Circuit, Air Conditioning, Lubrication, Fuel System, Combustion System, Cooling System, Hydraulic System, Electrical System, Wiring Diagram, Technical Information & Specifications.
Procedures Covered:
Routine maintenance, preventive maintenance, troubleshooting, repair procedures, component disassembly and reassembly, system diagnostics, electrical circuit analysis, lubrication procedures, fluid specifications, technical data interpretation.
Estimated Page Count:
Likely 500-1000+ pages based on the extensive coverage areas and depth typically found in Yanmar workshop manuals for this class of tractor. Actual count not provided.
Manual Type:
Workshop Service Repair Manual
Operating Systems:
All Versions of Windows & Mac
Software Requirements:
Adobe PDF Reader
Powertrain:
Comprehensive coverage of the engine (lubrication, fuel, cooling, combustion), transmission (HMT, clutch, high/low shift, dual speed turn), damper disc, front axle, and rear axle.
Hydraulic And Pto:
Detailed information on the hydraulic system and the Power Take-Off (PTO) system, including operation, maintenance, and troubleshooting.
Electrical And Control:
Extensive coverage of the electrical system, including starter, charging circuit, fuel circuit, CAN Meter, warning circuit, safety circuit, cabin circuit, and complete wiring diagrams.
Operator Environment:
Includes specific sections on the Cabin Circuit and Air Conditioning, indicating detailed coverage for operator comfort and control systems.
Maintenance And Inspection:
Covers routine and preventive maintenance schedules, inspection procedures, and lubrication requirements for all major systems.
Disassembly And Assembly:
Provides step-by-step procedures for the disassembly and reassembly of key components within the engine, transmission, axles, and other systems.
Troubleshooting And Diagnostics:
Offers diagnostic charts, fault code interpretations (likely for CAN Meter), and troubleshooting guides for common and complex issues across all covered systems.
Electrical Troubleshooting:
Detailed electrical troubleshooting based on wiring diagrams, circuit analysis, and diagnostic procedures for starter, charging, fuel, warning, safety, and cabin circuits.
Depth Of Coverage:
Aims for comprehensive coverage suitable for both amateur owners performing basic maintenance and professional technicians undertaking complex repairs and diagnostics. Includes technical specifications and data critical for accurate repairs.
Searchability:
Typically PDF documents of this nature are searchable, allowing users to quickly locate specific topics or keywords. (Assumed, not explicitly stated).
Printability:
PDF format ensures high-quality printing for clear diagrams, illustrations, and text. (Assumed).
Binding:
Not applicable for PDF format. Digital delivery.
Paper Quality:
Not applicable for PDF format. Digital delivery.
Engine Manufacturer:
Yanmar
Engine Model Family:
Likely 3TNV88 or similar, known for reliability and efficiency in compact tractors. (Specific model code not provided).
Displacement:
Typically around 2.19 liters (2190 cc) for engines in this class like the 3TNV88. (Specific to EG 907 HMT not provided).
Horsepower Range:
Likely in the 20-25 HP range. (Specific to EG 907 HMT not provided).
Torque Range:
Estimated torque figures would be available within the manual. (Specific to EG 907 HMT not provided).
Fuel Injection:
Direct Injection (typical for Yanmar diesel engines).
Cooling Method:
Liquid-cooled (radiator, coolant pump, thermostat).
Oil Type:
Specific Yanmar-approved engine oil grade (e.g., SAE 10W-30 or 15W-40) would be detailed in the manual. Refer to manual for exact API/ACEA specifications.
Oil Capacity:
Manual will specify exact oil capacity for the engine. (Specific to EG 907 HMT not provided).
Transmission Type:
HMT (Hydro-Mechanical Transmission)
Transmission Features:
Combines hydrostatic and mechanical drive for efficient power transfer, likely includes features like cruise control, smooth acceleration/deceleration, and variable speed control. 'Dual Speed Turn' feature mentioned suggests specific maneuverability enhancements.
Clutch Type:
Likely a dry or wet multi-plate clutch system, operated automatically or semi-automatically within the HMT system. Specific type detailed in manual.
High Low Shift:
Integrated into the HMT, providing distinct speed ranges for different operational needs (e.g., transport vs. field work).
Optional Features:
No optional transmission variants mentioned in product info. HMT is the defining feature.
Transmission Fluid Type:
Specific Yanmar-approved transmission fluid or universal tractor transmission fluid (UTTF) with specified viscosity grade will be detailed. Likely requires a high-quality hydraulic oil/transmission fluid blend. Refer to manual for exact specification.
Transmission Fluid Capacity:
Manual will specify the exact fluid capacity for the transmission and associated hydraulic systems. (Specific to EG 907 HMT not provided).
Overall Length:
Specific dimensions are not provided in the product information, but typically compact tractors of this class range from 2.5 to 3.5 meters. Consult manual for precise figures.
Overall Width:
Specific dimensions are not provided in the product information. Typical width can range from 1.2 to 1.8 meters. Consult manual for precise figures.
Overall Height:
Specific dimensions are not provided in the product information. Height to ROPS (Roll-Over Protective Structure) or cabin would be relevant. Consult manual for precise figures.
Operating Weight:
Manual will provide the operational weight of the tractor. Likely in the 1000-1500 kg range. (Specific to EG 907 HMT not provided).
Wheelbase:
Manual will specify wheelbase. Crucial for stability and turning radius. (Specific to EG 907 HMT not provided).
Front Tire Size:
Manual will specify standard and optional front tire sizes. Common sizes for this class could be 6-12 or 7-14. (Specific to EG 907 HMT not provided).
Rear Tire Size:
Manual will specify standard and optional rear tire sizes. Common sizes for this class could be 8.3-20 or 9.5-24. (Specific to EG 907 HMT not provided).
Rops Certification:
Likely equipped with a ROPS (Roll-Over Protective Structure) meeting relevant safety standards. Manual would detail any specific certifications.
Braking System:
Mechanical or hydraulic disc brakes. Manual will detail type, maintenance, and specifications.
Parking Brake:
Manual will describe the parking brake mechanism and operation.
Operator Presence System:
Likely includes a safety feature that requires the operator to be seated for the tractor to operate. Manual will detail its function.
Safety Circuit:
Explicitly mentioned in manual coverage, indicating integrated safety interlocks and shutdown features. Manual will detail circuit diagrams and function.
Warning Indicators:
Comprehensive warning lights and indicators for system malfunctions or hazards. Manual details the 'Warning Circuit'.
Instrument Cluster:
Features a 'CAN Meter' for digital display of various operating parameters, likely including engine RPM, fuel level, engine temperature, and warning lights. Manual details its functionality and error codes.
Transmission Control:
HMT system provides advanced operational control, potentially including features for easier operation and fuel efficiency. 'Dual Speed Turn' suggests enhanced maneuverability.
Electrical Architecture:
Utilizes CAN (Controller Area Network) communication for the 'CAN Meter' and potentially other control modules, indicating a modern electrical system architecture for diagnostics and data transfer. Wiring diagrams are provided in the manual.
Engine Oil Change Interval:
Typically 50-250 hours or annually, depending on operating conditions. Manual will provide exact intervals and hours.
Air Filter Replacement Interval:
Intervals vary based on dust levels. Manual will specify periodic checks and replacement intervals.
Fuel Filter Replacement Interval:
Manual will provide specific replacement intervals for fuel filters to ensure optimal fuel system performance.
Hydraulic Fluid Change Interval:
Typically 200-500 hours or annually. Manual will detail exact requirements and fluid type.
Engine Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors. Manual will specify the required concentration and type (e.g., Toyota Super Long Life Coolant or equivalent).
Hydraulic System Fluid:
Specific Yanmar hydraulic fluid or a compatible Universal Tractor Transmission Fluid (UTTF) meeting specific viscosity and performance standards. Manual will list exact specifications.
Common Wear Items:
As with most tractors, common wear items include filters (oil, fuel, air), hydraulic filters, and potential wear on PTO clutches or transmission components under heavy use. Manual provides preventative measures.
Lubrication Points:
Manual will detail all critical lubrication points (grease zerks, pivot points) and recommended lubrication intervals and types to prevent premature wear.
Brand:
Yanmar is a globally recognized Japanese manufacturer of diesel engines, construction equipment, and agricultural machinery, known for its engineering quality and innovation since its founding in 1912.
Series:
The EG series represents Yanmar's line of compact and utility tractors, designed for versatility in agricultural, landscaping, and property maintenance applications. The HMT transmission signifies an advancement in user-friendliness and efficiency.
Manufacturing Origin:
Yanmar tractors are predominantly manufactured in Japan, with potential assembly in other regions depending on market. Specific production location for EG 907 HMT not provided.
