Application:
Compact and utility tractors for agricultural, landscaping, and light industrial applications.
Competitors:
Kubota, John Deere, Mahindra, Massey Ferguson compact tractor lines.
Yanmar Tractor Design:
Known for robust construction, user-friendly operation, and reliable YANMAR diesel engines.
Value Proposition:
Essential resource for maintaining peak performance, diagnosing issues, and executing repairs on YANMAR EF series tractors.
Primary Coverage:
Complete tractor servicing, repair, and maintenance for YANMAR EF352T and EF312T models.
Technical Scope:
Comprehensive workshop procedures, diagnostic information, and specifications.
Type:
Factory Service Manual / Workshop Manual
Engine:
Diesel engine systems: fuel, lubrication, cooling, intake and exhaust, starting, and charging.
Transmission:
Transmission systems: clutch, gearbox, PTO (Power Take-Off), and drive shafts.
Hydraulics:
Hydraulic systems: pump, control valve, cylinders, hydraulic oil, and related components.
Electrical:
Electrical systems: battery, starter, alternator, lighting, instrumentation, wiring diagrams, and troubleshooting.
Chassis:
Chassis and steering systems: front axle, rear axle, steering mechanism, and brakes.
Body:
Tractor body, operator's station, fenders, and guards.
Maintenance:
Scheduled maintenance, lubrication charts, filter replacement, fluid checks and changes.
Diagnostics:
Troubleshooting guides, fault diagnosis for various systems, error codes.
Repair:
Detailed step-by-step repair procedures for all major components and systems.
Overhaul:
Engine overhaul, transmission rebuild, hydraulic component overhaul procedures.
Adjustment:
Adjustment procedures for clutch, brakes, PTO engagement, and hydraulic controls.
Depth:
Comprehensive, covering from basic adjustments to complete system rebuilds and advanced diagnostics.
Target Audience:
Professional technicians and experienced home mechanics.
Engine Manufacturer:
YANMAR
Engine Type:
3-cylinder, Liquid-cooled, 4-stroke Diesel
Displacement:
2.19 L (2190 cc)
Rated Power Ef352T:
Approx. 35 HP (Gross)
Rated Power Ef312T:
Approx. 31 HP (Gross)
Fuel Injection:
Direct Injection, Rotary Injection Pump
Oil Capacity:
Approx. 7.7 L (8.1 US qt) with filter
Cooling System:
Water-cooled
Transmission Type:
Hydrostatic Transmission (HST)
Gear Selection:
Forward/Reverse pedal operation with speed range selection (e.g., Low/High).
Transmission Options:
Typically HST standard, some markets may have Synchro Shuttle as an option (verify specific model).
Pto Speed:
540 RPM (Standard Rear PTO)
Pto Engagement:
Live PTO (Electro-hydraulic or Mechanical engagement)
Hydraulic Transmission Fluid Capacity:
Approx. 30 L (7.9 US gal)
Transmission Fluid Specification:
YANMAR genuine hydraulic oil or API GL-4 SAE 80W-90 gear oil (verify with manual for specific application).
Rollover Protection:
ROPS (Roll-Over Protective Structure) equipped as standard or optional (check specific tractor configuration).
Brakes:
Wet disc brakes, typically with independent or linked pedal operation.
Parking Brake:
Mechanical parking brake system.
Operator Presence:
Seat-activated safety switch to disengage PTO/transmission when operator leaves seat.
Lighting:
Headlights, taillights, turn signals (depending on configuration).
Dashboard Display:
Basic instrumentation: tachometer, hour meter, fuel gauge, engine temperature, warning lights.
Pto Engagement:
Electronic or mechanical PTO engagement for safe attachment of implements.
Implement Control:
Standard 3-point hitch (Category 1) and potentially live hydraulics for loader or other implements.
Engine Oil Change:
Every 250 hours or 12 months, whichever comes first.
Fuel Filter Replacement:
Every 500 hours or as needed based on fuel quality.
Air Filter Maintenance:
Check and clean every 100 hours, replace every 500 hours or when damaged.
Engine Oil Specification:
API CI-4 or CH-4, SAE 15W-40 diesel engine oil (verify viscosity based on ambient temperature).
Coolant Specification:
Ethylene glycol-based coolant with a 50/50 mix of coolant and distilled water.
Common Wear Items:
HST filter clogging, potential hydraulic leaks, clutch wear (on non-HST models), and front-end loader (FEL) component wear.
Diagnostic Challenges:
Troubleshooting intermittent electrical issues or subtle transmission performance degradation.
Company Origin:
YANMAR is a Japanese company founded in 1912, renowned for its diesel engines and construction equipment.
Ef Series Introduction:
The EF series represents YANMAR's entry into the sub-compact and compact tractor market, focusing on versatility and reliability.
Production Period:
Typically produced from the late 2000s through the 2010s, with variations and updates over the years.
