Fiat 780, 880 Tractor Workshop Manual — Wiring Diagrams

Name: Fiat 780, 880 Tractor Workshop Manual — Wiring Diagrams
Author: Fiat

$39.99

Model: 780 | 780 DT | 880 | 880 DT

Type: Tractor

216 Pages·107 MB·Searchable PDF·English·Print-Ready

✓ Wiring Diagrams
✓ Hydraulic Schematics
✓ Torque Specs
✓ Multi-Level Bookmarks (2-level navigation)

Preview Sample Pages (PDF)

Download, file and refund questions: FAQ

Fiat issued workshop manual 603.S4.201 for its 780 and 880 tractors, and this is that book: 216 pages covering both models in two wheel drive and DT four wheel drive form. As a Fiat 780 workshop manual PDF, it walks you through the wet clutch (Ferodo, Luk and o.m.g. types), gearbox and splitter, rear bevel drive with differential lock, brakes, PTO, and the lift unit with draught control. Hydraulic schematics map the power steering and lift circuits, a fault finding chart traces steering complaints back to the pump or valves, and wiring diagrams lay out charging, starting and lighting. Set your injectors to release at 230 ± 5 kg/cm² and expect 3 to 4 kg/cm² oil pressure at governed speed. A guessed pressure figure costs you an injection pump. Buy it once, keep it for the life of the tractor, and bookmark or keyword your way to any section before the weather turns.

What's Inside This Manual

System	Pages	Key Topics
Specification and Data	10-21	Identification Data - Weights, Engine, Power Train - Brakes - Steering - Front Axle, Drive Train Diagrams, Front Axle - Rear Wheels - Power Take Off, Lift - Towing Attachments
Engine - Specification and Data	22-30	Engine Block, Cylinder Head, Crank Gear, Valve Gear, Lubrication System, Cooling System
Engine - Fuel System	31-39	Air Cleaner, Fuel Filters, Feed Pump, Injection Pump, Injectors
Engine - Overhaul	40-69	Engine Description, Performance Data, Compression Test, Engine Removal, Engine Refit, Cylinder Liners, Cylinder Head, Camshaft Bushes, Tappet Housing, Valve Guides, Valve Seats, Camshaft, Valves, Valve Springs, Tappets, Pushrods, Rockers, Crankshaft, Main Bearings, Big-End Bearings, Pistons, Connecting Rods, Dynamic Balancer, Lubrication System Diagram, Oil Pump, Oil Filter, Oil Pressure Warning System, Cooling System Diagram, Water Pump, Radiator, Belt Tension, Temperature Gauge, Thermostat
Power Train - Specification and Data	70-85	Clutches, Gearbox, Splitter, Crawler Gear, Bevel Drive, Differential, Brakes, Final Drives
Power Train - Removal and Clutch	86-97	Control Platform, Ferodo Clutch, Luk Clutch, o.m.g. Clutch, Clutch Linkage, Clutch Pedal Support
Power Train - Gearbox, Splitter and Crawler Gear	98-117	Gearbox, Splitter, Selector Shafts, Selector Forks, Drive Shaft, Reverse Shaft, Tapered Roller Bearings, Epicyclic Crawler Gear, Planet Carrier, Annulus, Planet Wheel Carriers
Power Train - Bevel Drive, Differential, Brakes, Final Drives and PTO	118-145	Bevel Drive, Differential, Bevel Pinion Shaft, Crown Wheel, Differential Lock, Differential Bearings, Brake Units, Master Cylinder, Brake Pedals, Brake System Bleeding, Hub Reduction Assembly, Planet Carrier, Axle Shaft, Wheel Hub, Transmission Driven PTO, Ground Speed PTO, PTO Selector Fork, PTO Driven Shaft
Front Axle and Steering	146-169	Front Axle, Manual Steering, Power Steering, Tightening Torque Figures, Axle Beam, Axle Arms, Inspection, Steering Box, Steering Linkage, Hydraulic Steering, Steering Pump, Reservoir, Valves, Fault Finding Chart, Operation Diagram
Live Front Axle	170-175	Front Axle, Front Axle Drive, Drive Shaft, Tightening Torque Figures, Final Drives, Hubs, Steering Joints, Bevel Drive, Drive Shafts, Axle Drive
Lift Unit	176-198	Lift, Lift Pump, Implement Attachment, Fault Finding Chart, Tightening Torque Figures, Overhaul, Output Test, Oil Filter, Three-Point Linkage, Draught Control, Sensing Bar End Float, Main Data, Dismantle, Description, Operation, Relief Valve, Spool Return, Leakage, Torque Figures, Hydraulic System Diagram
Electrical System	199-212	Charging System, Starter, Battery, Fuses, Lighting, Signals, Accessories, Starter Switch
Service Tools	213-216	Engine, Removal, Refitting, Bench Test, Engine Block, Cylinder Head, Crank Gear, Fuel System

Quick Reference Specifications

Specification	Value	Page
780-780 DT
Fuel injector release pressure	230 ± 5 kg/cm² (3,270 ± 70 psi)	p. 12
Lubrication system relief valve pressure	3 to 4 kg/cm² (48 to 57 psi)	p. 12
All Models
Valve guide housing bore diameter in head (780-780 DT)	13.966 to 13.983 mm	p. 22
Valve guide housing bore diameter in head (880-880 DT)	14.000 to 14.018 mm	p. 22
synchromesh spring test load	1.4 to 1.55 kg (3 to 3 1/2 lb)	p. 104
synchromesh spring camber	1.5 mm (.06 in)	p. 104
Filtering cartridge renewal interval	400 hours	p. 181
C.A.V. injection pump start-retard solenoid link free travel	1 to 2 mm (.04 to .08 in)	p. 210
Engine compression (minimum acceptable)	22 kg/cm2	p. 42
880-880 DT
Fuel injection pressure (880-880 DT)	200 kg/cm2	p. 12

Brand	Fiat
Model	780, 780 DT, 880, 880 DT
Machine Type	Tractor
Manual Type	Workshop Manual
Language	English
Format	Searchable PDF (Digital Download)
Pages	216
File Size	107 MB
Manual No.	603.54.201
Wiring Diagrams	Yes
Hydraulic Schematics	Yes
Torque Specifications	Yes
Bookmarked / Indexed	Yes

Fiat 780, 880 Tractor Workshop Manual — Wiring Diagrams

What's Inside This Manual

Quick Reference Specifications

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