Systems Covered:
Engine Mechanical, Engine Electrical, Emission Control, Fuel System, Suspension System, Clutch System, Manual Transaxle, Driveshaft and Axle, Steering System, Brake System, Body Interior and Exterior, Body Electrical System, Restraint System
Estimated Pages:
N/A (Digital format, expandable via printing)
Type:
Workshop Service Repair Manual
Illustration Detail:
Features detailed illustrations, drawings, and photos to aid in procedural understanding.
Table Of Contents:
Numbered table of contents for quick information retrieval.
Instruction Format:
Numbered instructions and bold figure numbers for clear step-by-step guidance.
Critical Information:
Notes, cautions, and warnings integrated throughout each chapter to highlight critical information.
Engine Mechanical:
Detailed internal engine components, cylinder head, block, crankshaft, pistons, connecting rods, camshaft, timing, lubrication system, cooling system.
Engine Electrical:
Ignition system, starting system, charging system, wiring diagrams, component testing.
Emission Control:
Components and procedures related to emission control systems (if applicable to model year).
Fuel System:
Fuel tank, fuel pump, fuel lines, injectors, carburetor (if applicable), diesel injection system.
Suspension System:
Front and rear suspension components, shock absorbers, springs, linkages.
Clutch System:
Clutch assembly, pressure plate, friction disc, release bearing, clutch linkage/hydraulics.
Transaxle System:
Manual transaxle system: Gearbox components, shifting mechanisms, lubrication, overhaul procedures.
Driveshaft Axle:
Driveshaft, universal joints, front and rear axles, differentials, final drives.
Steering System:
Steering wheel, steering column, steering box/rack, tie rods, power steering system (if equipped).
Brake System:
Brake pedal, master cylinder, brake lines, calipers/wheel cylinders, brake pads/shoes, parking brake.
Body Interior Exterior:
Body panels, doors, hood, fenders, cab interior, seats, trim, instrumentation.
Body Electrical:
Lighting system, wipers, horn, instrumentation wiring, accessories.
Restraint System:
Seat belts, roll-over protection structure (ROPS) information (where applicable).
Maintenance:
Routine maintenance, fluid changes, filter replacements, lubrication points, inspections.
Troubleshooting:
System-specific troubleshooting guides, diagnostic procedures, common fault diagnosis.
Repair:
Step-by-step repair instructions for all major components and systems.
Disassembly Assembly:
Detailed procedures for disassembling and reassembling various components.
Diagnostics:
Detailed diagnostic flowcharts and procedures for identifying and resolving faults within each system.
Rebuilds:
Comprehensive instructions for complete engine and major component rebuilds, including specifications for clearances and tolerances.
Depth:
Comprehensive coverage from basic maintenance to advanced diagnostics and complete engine/component overhauls.
Specifications:
Includes torque specifications, fastener tightening sequences, fluid capacities, pressures, and electrical resistance values.
Engine Family:
Fiat's 800 Series Diesel Engines (likely based on the Fiat 8040 or similar displacement, common in that era).
Engine Configuration:
Likely a 4-cylinder naturally aspirated or turbocharged diesel engine (680DT typically indicates 'T' for Turbo).
Estimated Horsepower:
Approximately 70-80 HP (specific to 680/680DT, requires verification from manual).
Estimated Torque:
N/A (Requires manual for specific figures).
Injection Type:
Direct Injection (DI) Diesel
Cooling Method:
Liquid-cooled
Oil Type:
Diesel Engine Oil (e.g., API CG-4 or equivalent, specific viscosity TBD from manual).
Engine Oil Change:
Typically 250-500 operating hours (specific interval found in manual).
Air Filter Replacement:
As needed, based on operating environment (detailed inspection schedule in manual).
Engine Oil Capacity:
N/A (Requires manual for specific figure, likely 8-12 liters).
Hydraulic Fluid Type:
Universal Tractor Transmission Oil (UTTO) or specific Fiat hydraulic fluid (check manual for specification).
Common Wear Points:
Clutch wear, hydraulic pump longevity, starter motor, common diesel injection component wear.
Electrical Reliability:
Can be susceptible to aging wiring harnesses and connection issues common in older machinery.
