Segment:
Sub-compact to compact utility tractor segment, often used in small farms, landscaping, and property maintenance.
Competitors:
Competes with models from manufacturers like Kubota (e.g., BX series), John Deere (e.g., 1/3 Series), Yanmar, and Massey Ferguson in its class.
Versatility:
Designed for versatility with potential for various attachments (front loader, mower deck, backhoe, etc.), though attachment compatibility would be model-specific.
Engine:
Detailed diagnosis, overhaul, and component testing for the engine (specific engine model likely diesel, e.g., Mitsubishi/Iseki direct injection).
Transmission:
Service and repair of the transmission system, including gearbox, clutch, and PTO engagement.
Drivetrain:
Front and rear axle service, differential, driveshafts, and 4WD system (if applicable).
Hydraulic System:
Hydraulic pump, control valve, cylinders (lift, steering), filter replacement, and fluid checks.
Electrical System:
Wiring diagrams, starter, alternator, battery, lighting, and basic troubleshooting of electrical faults.
Fuel System:
Fuel tank, lines, filters, injection pump, and injectors.
Cooling System:
Radiator, thermostat, water pump, hoses, and coolant specifications.
Braking System:
Brake caliper/drum service, brake fluid specifications, and adjustment procedures.
Steering System:
Power steering pump, cylinder, linkages, and troubleshooting.
Chassis And Body:
Frame, fenders, operator platform, and attachment mounting points.
Maintenance:
Scheduled maintenance tasks, lubrication points, filter changes, and fluid top-offs.
Troubleshooting:
Diagnostic charts and procedures for identifying and resolving common issues.
Repair:
Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly.
Adjustment:
Procedures for adjusting brakes, clutch, valve lash, and other critical components.
Overhaul:
Comprehensive instructions for complete engine, transmission, and hydraulic system overhauls.
Specifications:
Torque specifications for all fasteners, clearances, and tolerances.
Depth:
Comprehensive, covering routine maintenance to major overhaul and complex diagnostics. Suitable for experienced mechanics and serious DIY enthusiasts.
Searchable Text:
Likely text-searchable, enabling quick access to specific information.
Diagrams:
High-quality, detailed diagrams and illustrations.
Readability:
Easy-to-read text sections.
Binding:
Not Applicable (Digital PDF)
Paper Quality:
Not Applicable (Digital PDF)
Engine Type:
Likely indirect or direct injection diesel engines. Specific displacement and model vary by TH4260, TH4290, TH4330.
Engine Manufacturer:
Likely Iseki or a partner manufacturer (e.g., Mitsubishi).
Horsepower Range:
Estimated to be in the 26-33 HP range, varying by model (TH4260 ~26 HP, TH4290 ~29 HP, TH4330 ~33 HP).
Injection:
Mechanical Injection Pump (likely rotary or inline).
Transmission Type:
Likely a gear-shift transmission with multiple forward and reverse gears (e.g., 8F/4R or similar). Some models may offer hydrostatic transmission (HST) as an option, though this manual focuses on the core transmission system.
Optional Transmission:
Hydrostatic Transmission (HST) might be an option on some variants, but the service manual would detail the primary transmission covered.
Pto:
Rear Power Take-Off (PTO), likely 540 RPM standard. Mid-PTO may be available on certain configurations.
Engine Oil Change:
Typically every 100 or 200 hours of operation, or annually. Specific interval is detailed in the manual.
Fuel Filter Replacement:
Recommended at regular intervals, often tied to hours or annually, detailed in manual.
Hydraulic Fluid Change:
Typically every 200-400 hours or annually. Manual will specify fluid type and interval.
Engine Oil:
API CE/CF or similar (e.g., 15W-40 diesel engine oil). Check manual for exact API rating and viscosity.
Hydraulic Fluid:
UTTO (Universal Tractor Transmission Oil) or ISO VG 46 hydraulic oil. Manual will specify precise type and viscosity.
Coolant:
Ethylene glycol-based antifreeze mixture, typically 50/50 with distilled water. Manual specifies capacity and type.
Common Wear Items:
Potential wear on clutch, PTO components, hydraulic seals, and aging electrical connections due to operational hours and environment.
Maintenance Importance:
Regular adherence to maintenance schedules is critical for preventing premature wear and ensuring longevity of these robust machines.
Heritage:
Iseki is a well-established Japanese manufacturer known for its agricultural machinery, including a long history of producing compact tractors and related equipment.
Series Placement:
The TH series represents Iseki's offering in the utility compact tractor market, designed for versatility and reliability in demanding tasks.
Production Years:
Specific production years for these models are not explicitly stated in the product info but are generally from the early to mid-2000s era or similar, based on typical Iseki model cycles.
