This workshop service manual covers the Fiat 640 and 640DT tractor models. These tractors are known for their robust construction and versatility in agricultural applications. The 640 series represents a significant line of reliable machinery, designed to meet the demanding needs of farm work. This manual provides comprehensive information to ensure these tractors operate at peak performance throughout their service life.
The purpose of this English-language, 372-page manual is to serve as an authoritative resource for mechanics, technicians, and owners. It details maintenance procedures, troubleshooting guides, technical specifications, and safety guidelines. Coverage includes the engine, transmission, drivetrain, hydraulics, electrical system, steering, braking system, cooling system, fuel system, chassis, bodywork, PTO, and operator controls. With detailed instructions, diagrams, and specifications, this manual facilitates effective maintenance, repair, and overhaul of the Fiat 640/640DT tractors.
Product Type:
Workshop Service Manual
Target Audience:
Mechanics, technicians, and DIY owners seeking to maintain and repair Fiat 640/640DT tractors.
Diagnostic Tools:
Includes references to specific Fiat service tool numbers and their usage.
Pictorial Guidance:
Features bumper-to-bumper pictorial diagrams, exploded views, drawings, and photos.
Systems Covered:
Engine, Transmission, Drivetrain, Hydraulics, Electrical System, Steering, Braking System, Cooling System, Fuel System, Chassis, Bodywork, PTO, Linkage, Operator Controls, Troubleshooting, Maintenance, Adjustments, Removal, Installation, Disassembly, Assembly, Specifications
Manual Type:
Repair Manual
Engine Overhaul:
Complete disassembly, inspection, repair, and reassembly procedures for Fiat diesel engines used in the 640/640DT series.
Transmission Service:
Detailed instructions for maintenance, repair, and overhaul of the gearbox and differential.
Hydraulic System:
Information on the operation, maintenance, and repair of the tractor's hydraulic lift system, including pump, valves, and cylinders.
Electrical Diagnostics:
Wiring diagrams, component testing, and troubleshooting procedures for the electrical system, including lighting, starting, and charging.
Routine Maintenance:
Step-by-step guides for all scheduled maintenance tasks, including oil changes, filter replacements, and lubrication.
Troubleshooting Guide:
Comprehensive diagnostic charts and procedures to identify and resolve common and uncommon operational issues.
Component Replacement:
Detailed removal and installation instructions for all major tractor components.
Adjustment Procedures:
Precise instructions for adjusting critical components such as clutch, brakes, and engine settings.
Rebuild Capabilities:
Enables complete engine, transmission, and hydraulic system rebuilds with detailed part specifications and assembly sequences.
Diagnostic Complexity:
Advanced diagnostic techniques and procedures for complex electrical and mechanical issues.
File Quality:
High-resolution PDF for clear viewing and printing.
Printable:
Yes, all pages are printable.
Operating Systems:
Windows, Mac, Linux OS
Software Requirement:
Adobe Reader (or compatible PDF viewer)
Engine Type:
Fiat diesel engine (specific model variants would require further detail, but typically 4-cylinder naturally aspirated).
Horsepower Range:
Typically in the 60-70 HP range, depending on specific model variant (640 vs. 640DT).
Engine Oil Capacity:
Refer to specific section for exact capacity and API/ACEA specifications.
Cooling System Type:
Liquid-cooled, with specific coolant type and capacity detailed in manual.
Transmission Type:
Manual gearbox, likely with multiple speed options and a synchronized or unsynchronized design.
Powershift:
Not typically found on this model, but DT variant implies a 4WD option.
Gear Selection:
Detailed procedures for clutch operation, gear engagement, and PTO engagement.
Transmission Oil Type:
Specific GL-4 or GL-5 gear oil required; refer to manual for precise specification and capacity.
Wheelbase:
Specific to 2WD/4WD configuration, detailed within the manual.
Operating Weight:
Varies based on configuration, manual will provide exact figures and weight distribution.
Operator Safety Guidelines:
Includes DANGER, CAUTION, and NOTE remarks for hazardous operations and safety precautions.
Braking System Description:
Details on mechanical and potentially hydraulic brake system operation, adjustment, and repair.
Operator Station:
Information on controls, seating, and general ergonomics for safe operation.
Operator Controls Layout:
Illustrations and descriptions of the tractor's control panel, dashboard indicators, and levers.
Pto Operation:
Detailed procedures for engaging and operating the Power Take-Off (PTO) system.
Electrical System Schematics:
Comprehensive wiring diagrams for diagnosing and repairing electrical issues.
Engine Oil Change Interval:
Typically 250-500 operating hours, refer to periodic maintenance chart in manual.
Transmission Oil Change Interval:
Refer to manual for specific intervals and inspection points.
Engine Oil Viscosity:
Commonly SAE 15W-40 or 20W-50 diesel engine oil, verify with manual.
Hydraulic Fluid Type:
Universal Tractor Transmission Oil (UTTO) or specific Fiat hydraulic fluid, consult manual for correct specification and capacity.
Common Wear Points:
Manual addresses wear limits and repair procedures for common wear items like clutch, brakes, and hydraulic seals.
Importance Of Scheduled Service:
Manual stresses adhering to service schedules for maximum tractor life and reliability.
Manufacturer Origin:
Fiat Trattori, an iconic Italian agricultural machinery manufacturer with a long history.
Series Introduction:
The 640 series represents a robust and versatile tractor line from Fiat, popular in many agricultural markets.
