Segment:
Utility Tractor Segment
Target User:
Farmers, agricultural contractors, mechanics specializing in older Fiat tractors
Competition:
Competed with tractors from manufacturers like Fordson, Massey Ferguson, John Deere, and SAME during its production era.
Features Of Vehicles:
Robust construction, reliable engines, straightforward mechanical design, known for good pulling power and versatility.
Value:
Essential resource for maintaining and repairing these durable Fiat tractors, reducing downtime and repair costs.
Primary Coverage:
Workshop Manual
Secondary Coverage:
Repair, Maintenance, Troubleshooting, Technical Specifications
Type:
Service and Repair Manual
Language:
English (Assumed, standard for such manuals)
Engine:
Complete engine overhaul, fuel system, lubrication, cooling, starting and charging systems
Transmission:
Gearbox, clutch, differential, final drives, PTO (Power Take-Off) unit
Hydraulic System:
Hydraulic pump, lift cover assembly, remote control valves, hydraulic cylinder
Chassis And Steering:
Front axle, rear axle, steering system (hydrostatic and mechanical), brakes
Electrical System:
Wiring diagrams, lighting, starting motor, alternator, battery, dashboard instrumentation
Bodywork And Operator Station:
Fenders, controls, seat, operator safety features
Maintenance:
Scheduled maintenance, lubrication points, filter changes, fluid level checks
Troubleshooting:
Diagnostic charts, symptom-based problem solving for all major systems
Repair And Overhaul:
Step-by-step instructions for component disassembly, inspection, repair, and reassembly
Adjustment:
Valve lash, brake adjustments, clutch adjustment, hydraulic system calibration
Torquing Specifications:
Critical bolt torques for engine, transmission, axles, and other components
Depth:
Comprehensive, suitable for professional mechanics and experienced technicians
Diagnostic Capability:
Detailed diagnostic procedures for identifying and resolving mechanical and electrical faults
Rebuild Instructions:
Includes complete engine, transmission, and hydraulic system rebuild procedures
Engine Type:
Diesel, 4-Stroke, Naturally Aspirated
Engine Family:
Fiat 8000 Series Diesel Engines
Bore X Stroke:
Typically around 100 x 115 mm (varies slightly by specific engine variant)
Displacement 580:
Approximately 3.7 - 3.9 Liters (Common for Fiat 8045 engine)
Displacement 680:
Approximately 4.5 - 4.8 Liters (Common for Fiat 8055 engine)
Horsepower 580:
Rated PTO horsepower typically around 50-55 HP
Horsepower 680:
Rated PTO horsepower typically around 60-65 HP
Torque Curve:
Designed for strong low-end torque, characteristic of agricultural engines.
Fuel Injection:
Direct injection via inline or rotary injection pump (e.g., Bosch, CAV)
Cooling Method:
Liquid-cooled (Water Pump and Radiator)
Transmission Type Standard:
Manual Gearbox with Synchromesh (Often 8 forward, 4 reverse gears or similar)
Transmission Type Optional:
Likely offered with creeper gears or enhanced PTO options depending on market.
Gear Selection:
Selectable gear ratios for various field operations.
Pto:
Live PTO or independent PTO (e.g., 540 RPM at engine speed)
Wheelbase:
Varies, typically around 2100-2300 mm for 2WD versions
Operating Weight:
Typically in the range of 2200-2800 kg (unballasted)
Front Axle Capacity:
Designed to handle engine weight and front-mounted implements.
Rear Axle Capacity:
Designed to handle transmission, hydraulics, and implement draft loads.
Rollover Protection:
ROPS (Roll Over Protective Structure) optional or standard depending on market and era. Manual would cover its installation and inspection.
Brakes:
Drum brakes or disc brakes (depending on specific model variant and revision), differential lock for improved traction.
Operator Station:
Ergonomically placed controls, seat belts (if equipped).
Infotainment System:
N/A (Basic tractor design from its era, no modern infotainment systems).
Driver Assistance Features:
N/A (Focus on mechanical functionality rather than electronic driver aids).
Connectivity Options:
N/A (No electronic connectivity features).
Engine Oil Change:
Typically every 250-400 operating hours or annually, as specified in the manual.
Fuel Filter Change:
As per manual recommendations, often linked to operating hours or at least annually.
Air Filter Service:
Regular inspection and cleaning based on operating conditions, replacement as needed.
Transmission Oil Change:
Typically every 500-800 operating hours or every two years.
Engine Oil Type:
API CD or CE rated diesel engine oil, SAE 15W-40 or 10W-30 depending on climate (e.g., Fiat specification FT 101 or equivalent).
Hydraulic Fluid Type:
Universal Tractor Transmission Oil (UTTO) or specific Fiat hydraulic fluid (e.g., Fiat specification 1756 or equivalent), viscosity typically ISO VG 46.
Coolant Type:
Ethylene glycol based antifreeze mixed with water (50/50 ratio), meeting relevant industry standards.
Common Wear Items:
Clutch wear, hydraulic seal deterioration, PTO clutch wear, starter motor reliability, potential for minor electrical issues in older units.
Hydraulic Performance:
Loss of lift capacity, slow hydraulics can indicate worn pump, internal leaks, or low fluid level.
Engine Starting:
Hard starting can be related to glow plug system, fuel injection pump timing, or air in the fuel lines.
Manufacturer History:
Fiat Tractors (part of the Fiat Group, now CNH Industrial) has a long history dating back to the early 20th century, known for producing robust and reliable agricultural machinery.
Series Placement:
The 580 and 680 models were part of Fiat's successful utility tractor line, evolving from earlier models and influencing subsequent designs. They were known for their durability and efficiency.
Production Period:
Likely produced in the late 1970s and 1980s.
Manufacturing Location:
Primarily Italy, with potential production or assembly in other countries under Fiat or licensed agreements.
