fiat 780 | 780dt | 880 - tractor manuals | tractor parts ......101 - engine - engine block -...

FI-S-780+

FFiiaatt Service Manual

780, 780DT, 880,880DT, 880-5, 880DT-5,

980, 980DTTechnical Specs Only

Chassis Only

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF FIAT OR IT’S SUCCESSORS. FIAT AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Serv

ice

Man

ual

http://www.jensales.com/products/fiat-tractor-service-manual-fi-s-780.html

FiatTrattori ,.IIIi1B

7BO-780DT 880-880DT

QUICK REFERENCE INDEX

Section

GENERAL . ... A

SPECIFICATION 00

WORKSHOP ENGINE . . . 10

MANUAL POWER TRAIN 20

FRONT AXLE

- STEERING. 30

LIVE FRONT AXLE 40

LIFT UNIT . . . . 50

ELECTRICAL SYSTEM . 60

SERVICE TOOLS . . . 90

DIREZ/ONE COMMERCIALE


Fiat Trattori GENERAL: A 780-880 Contents

page 3

CONTENTS

A - GENERAL . ....

00 - SPECIFICATION

Page

6-7-8-9-10

Identification data - Weights 1 Engine .. 2-3-4 Power Train - Brakes - Steering - Front

Axle. 4 Drive Train Diagrams . 5-6-7-11-12 Front Axle - Rear Wheels - Power Take

Off 8 Lift - Towing Attachments 8 Ballasting - Body - Electrical System 9 Lighting - Instruments and Accessories-

Tyre Size 10 Dimensions • 13 Capacities 14

10 - ENGINE - Specification and Data

Engine Block - Cylinder Head • 1 Crank Gear 2-3-4 Crank Gear 5 Valve Gear 6 Valve Gear 7-8 Lubrication System 8 Cooling System • 9 Fuel System 10-11-12-13-14-15 Tightening Torque Figures ... 16 Longitudinal Section through Engine - 780 Tractor 17 - 880 Tractor 18 Fuel System. 19

Dale

IV-1981

X-1979 IV-1981

IV-1981 IV-1981

X-1979 X-1979 X-1979

X-1979 IV-1981 IV-1981

X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979

X-1979 X-1979

IV-1981

100 - ENGINE - Description - Performance Data -To Remove - To Refit

Description • • . • • • Performance Data. • • Compression Test •• To Remove - To Refit

2-3 4

4-5

X-1979 IV-1981 IV-1981 IV-1981

101 - ENGINE - Engine Block - Cylinder Head

Cylinder Liners Cylinder Head

102 - ENGINE - Valve Gear

Camshaft - Valves, Guides and Springs Tappets, Pushrods and Rockers Valve Timing Gear Train . • . .

103 - ENGINE - Crank Gear

Crankshaft . • . . • • . . • . • Main and Big-End Bearings and Caps Pistons and Rings Connecting Rods Flywheel ..•••

1-2 I X-1979 3-4 IV-1981

1 2 3

1 2 3 4 5

X-1979 X-1979 X-1979

X-1979 X-1979 X-1979 X-1979 X-1979

Page

Dynamic Balancer - 780 Tractor - 880 Tractor

104 - ENGINE - Fuel System

Not available

105 - ENGINE - Lubrication System

Lubrication System Diagram - 780 Tractor ..••••• - 880 Tractor .••....••.•• Oil Pump - Oil Filter - Oil Pressure

Warning System . . • • . • . • . •

106 - ENGINE - Cooling System

Cooling System Diagram . . • • • • • Description - Water Pump .•.••• Radiator •.••.•••....•.. To Adjust Belt Tension - Water Tempe

rature Gauge - Thermostat. • • • •

6 7-8

1 2

3

2 3

4

Dale

X-1979 X-1979

X-1979 X-1979

X-1979

X-1979 X-1979 X-1979

X-1979

20 - POWER TRAIN - Specification and Data

Clutches 1-2-3-4 X-1979 Gearbox and Splitter 4-5-6 X-1979 Crawler Gear 6 X-1979 Rear Bevel Drive and Differential 7 IV-1981 Brakes 8-9 IV-1981 Final Drives . 9 X-1979 Power Take Off • 9-10 X-1979 Tightening Torque Figures 11-12 X-1979 Cross Section through Power Train - 780 Tractor . . .. 13 IV-1981 - 880 Tractor .. 14 IV-1981 Longitudinal Section through Power

Train - 780 Tractor 15 X-1979 - 880 Tractor 16 X-1979

200 - POWER TRAIN - To Remove and Refit

Control Platform ••••••••••

201 - POWER TRAIN - Clutch

To Remove and Refit •.• To Overhaul Ferodo Clutch To Adjust Ferodo Clutch • To Adjust Ferodo Clutch . Luk or O.M.G. Clutches. • To Overhaul Luk or O.M.G. Clutches To Adjust Luk or O.M.G. Clutches To Adjust Clutch Linkage •••••

1 I X-1979

1 2-3-4

4 5 6

7-8 8-9 10

X-1979 X-1979 X-1979

IV-1981 IV-1981 X-1979 X-1979 X-1979

Print No. 603.54.201/01 - IV-1981


A GENERAL:

page 4 Contents

202 - POWER TRAIN - Gearbox and Splitter Page Date

To Remove - To Refit - To Dismantle Sections through Gearbox

1-2-7 X-1979

- 780, 8-speed • • • 3 - 880, a-speed, AM 4 - 780, 12-speed " 5 - 880, 12-speed, PM 6 To Inspect - To Reassemble 7-8-9 To Adjust Gearbox, 880 Tractor 10-11-12-13-14-15

203 - POWER TRAIN - Crawler Gear Description - Overhaul, 8-speed Trans-

mission ••••••• • • • • • •• 1-2 Description - Overhaul, 12-speed Trans-

mission ••••• • • • • • • • • • 3

X-1979 X-1979 X-1979 X-1979 X-1979 X-1979

X-1979

X-1979

204 - POWER TRAIN - Rear Bevel Drive and Differential To Remove - To Refit - To Dismantle -

To Reassemble •••••••••• 1 To Adjust Bevel Drive •• 2-3-4-5-7-8-9-10-11 Sections through Bevel Drive and Diffe-

rential • • • • • • • • • • • • • • • 6 To Adjust Differential. • • • • • • • • 11-12 To Reassemble and Readjust Differential

Lock. • • • • • • • • • • • • • •• 12 To Adjust Differential Lock Control Pedal 13

205 - POWER TRAIN - Brakes Operation ••••• · .. 1 To Dismantle and Reassemble Brake

Units .... · . . 2 To Dismantle and Reassemble Master

Cylinder . . . . . . · ... 3 To Adjust the Pedals • . . · ... 4 To Reinstall the Pedals - To Bleed the

System ... · .. 5 To Bench Test Master Cylinder. 6-7 Parking Brake • • • · a

206 - POWER TRAIN - Final Drives To Remove To Refit •••••••••••••••• ~ I 207 - POWER TRAIN - Power Take-Off To Remove - To Refit ••••• To Dismantle - To Reassemble •••• 2~ I

X-1979 X-1979

X-1979 X-1979

X-1979 X-1979

IV-1981

IV-1981

IV-1981 IV-1981

X-1979 X-1979 X-1979

X-1979 X-1979

X-1979 X-1979

208 - POWER TRAIN - Reverses Main Data - Tightening Torque Figures Description • • • • • • • • • • • • • • Overhaul •••••••••••••••

1 IIV-1981 2 IV-1981 3 IV-1981

30 - FRONT AXLE - STEERING - Specification and Data Front Axle •••••••••••• Manual Steering - Power Steering Tightening Torque Figures

DIREZIONE COMMERCIALE

1 I X-1979 2~-4 IV-1981

5 IV-1981

301 - FRONT AXLE - STEERING - Front Axle Page Date

To Remove and Refit Axle Beam - To Overhaul Axle Arms •

To Inspect •••••••••••••• 1 IIV-1981 2 IV-1981

302 - FRONT AXLE - STEERING - Manual Steering

To Overhaul Steering Box Linkage •••••••••• ~ I X-1979

X-1979

303 - FRONT AXLE - STEERING - Power Steering

To Overhaul Power Steering • • • • • 1 To Overhaul Power Cylinder • • • •• 2 To Overhaul Steering Pump and Reser-

voir - To Bleed the System 3 To Adjust the Valves • • • • • • 4 To Adjust the Valves • • • • • • 5 Fault Finding Chart • • • • • • • 6-7 Operation Diagram and Section • 9

X-1979 X-1979

X-1979 X-1979 X-1979 X-1979 X-1979

40 - LIVE FR!lNT AXLE - Specification and Data

Front Axle •••••••••• Front Axle Drive - Drive Shaft Tightening Torque Figures • •

1-2: IIV-1981 IV-1981 IV-1981

401 - LIVE FRONT AXLE - Front Axle

To Remove - To Overhaul Final Drives Hubs and Steering Joints • • • •• 1-2

To Adjust King Pin Bearings - To Adjust Wheel Bearings • • • • • • • • •• 3-4

To Overhaul Bevel Drive and Differential 5 To Adjust Bevel Drive 6-7-8-9 To Adjust Differential. • • • • • • •• 10

X-1979

IV-1981 IV-1981 IV-1981 IV-1981

402 - LIVE FRONT AXLE - Drive Shafts - Axle Drive

To Remove and Refit Drive Shafts - To Dismantle Axle Drive •••••

To Reassemble Axle Drive • • • • Sections through Live Front Axle •

1 2 3

50 - LIFT UNIT - Specification and Data

Lift •••••••••• Lift Pump ••••••••• Implement Attachment • • Fault Finding Chart • • • • Tightening Torque Figures

501 - LIFT UNIT - Lift

Description • • • • • • • • To Remove - To Dismantle. Hydraulic System Diagrams • Lift Schematics To. Inspect • • To Reassemble

1-2 3-4

4 5 6

1 2 3 4 5 6

X-1979 X-1979

IV-1981

X-1979 IV-1981 X-1979 X-1979 X-1979

X-1979 X-1979

IV-1981 IV-1981 X-1979 X-1979


Fiat Trattori GENERAL: A 780-880 Contents page 5

Page

To Adjust ••••••••••••• 7-8-9-10 To Adjust. . • • • • • • • . . • • 11 To Adjust Relief and Cylinder Safety

Valves. • • • • • • 12 To Check Drain Valve • • • • • • •• 13

502 - LIFT UNIT - Lift Pump

To Overhaul •••••• Output Test - Oil Filter •

1-2 3

Date

X-1979 IV-1981

IV-1981 X-1979

X-1979 X-1979

503 - LIFT UNIT - Implement Attachment

Three-point Linkage - Draught Control. 1-2-3 I IV-1981 To Adjust Sensing Bar End Float. • • 4 IV-1981

504 - LIFT UNIT

SALAMI - Remote Control Valves

Main Data. • • • • • • • • 1 Tightening Torque Figures 1 To Dismantle.". • • • • • 2 Description and Operation 3 Relief Valve Adjustment. 4-5 Spool Return Test . 6 Spool Leakage Test. • • 7"

X-1979 X-1979 X-1979 X-1979 X-1979 X-1979 X-1979

KONT AK - Remote Control Valves

Main Data •••.••••• Tightening Torque Figures To Dismantle ••..••• Description and Operation Relief Valve Check • Spool Return Test • Spool Leakage Test.

505 - LIFT - Auxiliary Cylinder

Main Data •••••••• Torque Figures • • • • • • Hydraulic System Diagram

Page

9 9

10 11-12

13 14 15

i I

Date

IV-1981 IV-1981 IV-1981 IV-1981 IV-1981 IV-1981 IV-1981

X-1979 X-1979 X-1979

60 - ELECTRICAL SYSTEM - Specification and Data

Charging System Starter - Marelli ••• - Bosch ••• Battery - Fuses Lighting - Signals - Accessories Starter Switch - Lighting Switch - Direc-

tion Light Switch Controls and Instruments. C.A.V. Start Retard Device Wiring Diagrams • • • • •

2-3 4-5-6-7

8 9

10 11 12

1:3-14

90 - SERVICE TOOLS . .1-2-3-4-5

X-1979

X-1979 X-1979 X-1979 X-1979

X-1979 X-1979 X-1979 X-1979

IV-1981

Print No. 603.54.201/01 - IV-1981


Fiat Trattori 00 SPECIFICA TION 780-880

IDENTIFICATION DATA Marketing Code - Rear wheel drive (RWD) - Live front axle (IF A) Engineering code: - 8-speed, rear wheel drive

(780 and 880 AM) - 12-speed, rear wheel drive

(780 and 880 AM) - 8-speed, four wheel drive

(780 and 880 AM) - 12-speed, four wheel drive

(780 and 880 AM) - 12-speed, rear wheel drive

(780 and 880 PM) - 16-speed, rear wheel drive

(780 and 880 PM) - 12-speed, four wheel drive

(780 and 880 PM) - 16-speed, four wheel drive

Engine type (all versions)

WEIGHTS (780 AM and 880)

~perating weight (includi~g .lift ~ ~~~: ~~g DT Implement attachment, sWinging / Mod 880 drawbar and ROP frame) Mod: 880 DT

WEIGHTS (780 PM) Operating weight wi~h I~ft, imple- ! Mod. 780 ment attachment, sWinging draw- Mod. 780 DT bar and ROP frame

(*) AM version 8 + 4 speeds

page 1

780 880 780 DT 880 DT

655.100.000 656.100.000 (*)

655.111.000 656.111.000

655.127.000 656.127.000 (*)

655.129.000 656.129.000

655.100.000 var. 720.286.040 656.100.000

655.100.000 var. 720.111.170 656.100.000 var. 720.111.150

655.127.000 var. 720.286.050 656.127.000

655.127.000 var. 720.111.170 656.127.000 var. 720.111.150 FIAT 8045.04.2 .. (with BOSCH PUl'l1p) FIAT OM C 03/75 FIAT 8045.04.3.. (with C.A.V. pump) (with C.A. V. pump)

kg 2440 2740

2530 2770

Ibs. 5380 6040

5580 6110

kg

2780 3080

Ibs.

6130 6790

Print No. 603.54.201 - X-1979


Fiat Trattori

780-880 102

ENGINE: Valve Gear

CAMSHAFT

To remove the camshaft take out screws (5) and withdraw thrust plate (7).

To inspect, place the camshaft over V-blocks and check journal eccentricity using a suitable dial gauge. Maximum allowance is .02 mm (.0008 in).

To straighten the camshaft use a press of adequate size for up to .2 mm (.008 in) distortion. If distortion exceeds .2 mm (.008 in), renew the camshaft without hesitation.

Section through Camshaft Drive a. Model 780 - b. Model 880 - 5. Retaining screw - 6. Drive gear -

7. Thrust plate- 8. Camshaft

:;

• 130

53.875 •

page 1

On Model 780, renew the bushes using suitable extractor and drivers.

After fitting, the new bushes must be reamed to size as prescribed in the illustration, using reamer A.390363 (293269).

VALVES, GUIDES AND SPRINGS

To remove and reinstall the valves use tool 291050.

If defective sealing is detected, grind in together with the seats using air grinder 290064 or hand grinder 290891. If necessary, re-cutthe valve seats as directed and grind the valves (page 2).

After grinding, check that the minimum land below valve head chamfer is not less than .5 mm (.020 in).

To remove and reinstall the valve guides, use driver 291046.

On Model 880, guides should protrude as indicated in Fig. b, page 3, Section 101.

Moreover, they should be a drive fit in their housings. If loose, they should be renewed without hesitation using oversize guides.

~ --- --- - -

49,450 49,475

~~" l)==tt=y--~ . .. - ~--- ---V----a

Camshaft, Journal and Housing Details

Note: Bush fitted 1.0. given (Model 780) a. Model 780 (with bushes) - b. Model 880 (no bushes)

b

Print No_ 603.54.20t - X-1979


Fiat Trattori 106 ENGINE: Cooling System 780-880

- Take out the shaft with attached bearing and fan hub using a suitable driver.

The water seal (5, page 2) should only be removed for replacement purposes when the carbon face in contact with the impeller bush is worn or damaged to the point of preventing efficient sealing.

On reassembly, note the following points:

- Bearing (2, page 2) is sealed and does not require lubrication.

- Impeller (7) must be fitted flush with the end of the shaft.

RADIATOR

The radiator cap houses a pressure release valve (13), set to .5 kg/cm2 (7 psi), and a vacuum release valve (14).

These valves should be checked periodically.

Removing Water Pump Impeller with Extractor 291182/1

7. Impeller

page 3

To recondition a furred radiator proceed as follows:

- Prepare a descaling solution using warm water and FIAT des caler in the proportion indicated on the container or 30 grams of bicarbonate of soda to each litre of water. If bicarbonate of soda is used, filter the solution prior to pouring.

- Pour the solution in the radiator, drain and rinse thoroughly.

To check the radiator for leakage, dip in a bath of water at 20° to 40°C and pressurize at 1 kg/cm2

(14 psi) for approximately 2 minutes. Repeat the test at least three times.

Whenever possible, the cleaning operation should be extended to the entire system, filling as indicated above and running the tractor for a minimum of 1 hour. Subsequently, stop the engine and drain through the valves provided.

Radiator Assembly

11. Sealing surround - 12. Vent pipe - 13. Pressure release valve (set to .5 kg/em" or 7 psi) -14. Vacuum release valve -15. Filler cap

Print No. 603.54.201 - X-1979


Fiat Trattori allBfl

880-5 8800T-5

WORKSHOP

MANUAL

DIREZIONE


Section

GENERAL . ... A

SPECIFICATION 00

ENGINE . . . 10

POWER TRAIN 20

FRONT AXLE

- STEERING. 30

LIVE FRONT AXLE 40

LIFT UNIT . . . . 50


SERVICE TOOLS . . 90

COMMERCIALE

Reprinted



page 3

Page

A - CONTENTS - See Model 7BO and BBO ............ . 6-7

00 - SPECIFICATION

Identification Data - Weights Engine 1-2 Power Train - Brakes - Steering - Front

Axle 2-3 Power Train Schematics - See Model

880 New 7 live Front Axle ~ Rear Wheels - Power

Take-Off 3 Lift - Towing Attachments 3-4 Ballasting - Body - Electrical System 4-5 lighting - Instruments and Accessories-

Tyre Sizes 5 Dimensions - See Model 880 13 Capacities. 6


Engine Block - Cylinder Head Crank Gear. 2-3-4 Valve Gear 5-6-7 Lubrication System 7-8 Cooling System . B Fuel System. 9-10 Torque Data 11 Longitudinal Section through Engine 12

Date

IV-19B1

IV-1981 IV-19B1

IV-1981

X-1979

IV-19B1 IV-19B1 IV-1981

IV-19B1 IV-1981 IV-19B1

IV-19B1 IV-19B1 IV-1981 IV-19B1 IV-19B1 I V -19B1 IV-19B1 IV-19B1

100 - ENGINE - Description - Performance Data -To Remove - To Refit

Description . . . . . . . . . . . . . . Performance Data. . . . . . . . . . . Compression Test - See Model 7BO and

IV-19B1 IV-19B1

880, . . . . . . . . . . . . . . . . 3 IV-19B1 IV-19B1 To Remove and Refit - See Model 7BO 4-5

101 - ENGINE - Engine Block - Cylinder Head

Cylinder liners - See Model 780 Cylinder Head ......... .

102 - ENGINE - Valve Gear

Camshaft - Valves. Guides and Springs Tappets. Pushrods and Rockers. Valve Timing Gears. . . . . . . . . .

1-2 I X-1979 1 IV-1981

IV-1981 IV-1981 IV-1981

103 - ENGINE - Crank Gear

Crankshaft . . . . . . . . . . . Main and Big· End Bearings and Caps -

See Model 780 . . . . . . . . . . Pistons and Rings - See Model 780 . Connecting Rods - See Model 7BO Flywheel - See Model 780 . . . . . .

104 - ENGINE - Fuel System

Note: Not available.

Page 1

2 3-4 4-5

5

105 - ENGINE - Lubrication System

Lubrication System Diagram. . . . . . Oil Pump - Oil Filter - Oil Pressure Warn-

ing System ............ .

106 - ENGINE - Cooling System

Cooling System Diagram . . . . . . . Description - Water Pump - See Model

780 ......... . Radiator - See Model 780 . . . . . . . To Adjust Belt Tension ....... . Water Temperature Gauge - Thermostat

- See Model 780 . . . . . . . . .' .

2

2-3 3

4

Date IV-1981

X-1979 X-1979 X-1979 X-1979

IV-19B1

IV-1981

IV-1981

X-1979 X-1979

IV-1981

X-1979

20 - POWER TRAIN - Specification and Data

Clutches - See Model 880 with FERODO or LUK 12"/12" Clutches 3-4

12-speed Transmission and Splitter -See Model 880 new 4-5-6

Crawler Gear - See Models 780 and 880 new 6

Bevel Drive and Differential - See Model 880 new

Brakes - See Models 780 and 880 new

Final Drive - See Model 880. Power Take-Off - See Model 880 new Torque Data - See Model 880 new Cross Section through Power Train -

See Model 880 . Longitudinal Section through Power

Train - See Model 880

7 B 9 9

9-10 11-12

14

16

X-1979

X-1979

X-1979

IV-1981 IV-1981 X-1979 X-1979 X-1979 X-1979

IV-19B1

X-1979

PNnt No. 603.54.201/01 - IV-1981


A

page 4

200 • POWER TRAIN • To Remove and Refit

page1 I Control Platform - See Models 780 and

880 ••••...•••...•...

201 • POWER TRAIN • Clutch

To Remove and Refit - See Models 880 with 12./12° Clutches. . . . •..

To Overhaul FERODO 1~/12H Clutch To Adjust FERODO 12H/12H Clutch • To Overhaul LUK 12·/12· Clutch. . • To Adjust LUK 12N/1~ Clutcli. . . • To Adjust Clutch Linkage - See Models

780 and 880 ..•.•..•.•..

1 1 2 2

10

Dale

X-1979

X-1979 IV-1981 IV-1981 IV-1981 IV-1981

X-1979

202 • POWER TRAIN· Transmission and Splitter

To Remove - To Refit - To Dismantle -See Model 880, 12-speed. . • • . • 1-2-7

Sections through Transmission - See Model 880, 12-speed, new • • • . . 6

To Inspection - See Models 780 and 880 7 To Reassemble - See Model 880, 12-

speed, new as from Frame No. 889370 7-8-9 To Adjust Transmission - See Model 880, To Adjust Transmission - See Model

880, 12-speed, new as from Frame No. 889370 • • • • • . • . • • •• 13-14-15

203 • POWER TRAIN • Crawler Gear

Description - To Overhaul 12-speed Crawler Gear - See Models 780 and 880, 12-speed. • • • • • • • • . • •

,

X-1979

X-1979 X-1979

X-1979

X-1979

X-1979

204 - POWER TRAIN - Rear Bevel Drive and Differential

To Remove - To Refit - To Dismantle -To Reassemble - See Model 880.. 1-2

To Adjust Bevel Drive - See Model 880 New as from Frame No. 887701. • 3-5-7-10

To Adjust Differential - See Model 880 11-12


X-1979

X-1979 X-1979

GENERAL: Contents

Page Dale To Reassemble and Adjust Differential

Lock - See Models 780 and 880 .. 12 X-1979 To Adjust Differential Lock Control

Pedal - See Model 780 and 880 new 13 X-1979

205 • POWER TRAIN • Brakes

Operation - See Models 780 and 880 IV-1981 To Dismantle and Reassemble Brake

Units - See Models 780 and 880 . • 2 IV-1981 To Dismantle and Reassemble Master

Cylinder - See Models 780 and 880 3 IV-1981 To Adjust the Pedals - See Models 780

and 880 . . . . . • . . • . • • . • 4 IV-1981 To Reinstall the Pedals - To Bleed the

System - See Models 780 and 880 5 X-1979 To Bench Test Master Cylinder - See

Models 780 and 880 . . . • . • .• 6-7 X-1979 Parking Brake - See Models 780 and 880

new . . . . • • • . • . • • . • • • 8 X-1979

206 • POWER TRAIN • Final Drives

To Remove and Dismantle - See Models 780 and 880 . • . • . • . • • • • •

To Reassemble - See Models 780 and 880 2

207 • POWER TRAIN • Power Take-Off

To Remove - To Refit - See Models 780 and 880 •.•.•..•••••••

To Dismantle - To Reassemble - See Models 780 and 880 with 540-1000 rpm Power Take-Off •••••••••• 2-3

X-1979 X-1979

X-1979

X-1979

30 • FRONT AXLE· STEERING • Specification and Data

Front Axle • • • • • • • • • • • • • • 1 Power Steering • • • • • . • • • . •• 1-2 Torque Data - See Models 780 and 880 5

IV-1981 IV-1981 IV-1981



301 - FRONT AXLE - STEERING - Front Axle

To Remove and Refit Axle Beam - To Overhaul Axle Arms - See Models 780 and 880 with Power Steering ..

To Inspect - See Models 780 and 880

Page Dale

2 IV-1981 IV-1981

303 - FRONT AXLE - STEERING • Power Steering

To Overhaul Power Steering - See Models 780 and 880 .•... • . . . .

To Overhaul Hydraulic Cylinder - See Models 780 and 880 . . • . . • . . 2

To Overhaul Steering Pump and Reser-voirs •...•........•..

To Bleed the System - See Models 780 and 880 . • • . • • . . . • • • . . 3

To Bench Test Steer Cylinder Relief Valve « OVP 20» - See Models 780 and 880 . . • • . . • . • . • • . • 4

To Bench Test Steer Cylinder Safety Valves « OVP 20 » - See Models 780 and 880 • . . . • • • • . . . . • • 5

Trouble-Shooting Chart - See Models 780 and 880 • . • . . . . . . • •. 6-7

Operation Diagram and Sections - See Models 780 and 880 . . • . . • . • 9

X-1979

X-1979

IV-1981

X-1979

X-1979

X-1979

X-1979

X-1979

40 - LIVE FRONT AXLE - Specification and Data

Live Front Axle - See Model 880 DT. 1-2 Front Axle Drive - Drive Shaft - See Mod-

els 780 DT and 880 DT. . . . • 3 Torque Data - See Model 880 DT • . • 4


To Remove - To Overhaul Final Drives, Hubs and Steering Joints - See Model 880 DT • • . • . . . . . .• 1-2

To Adjust King Pin Bearings - To Adjust Wheel Bearings - See Model 880 DT 3-4

To Overhaul Bevel Drive and Differential - See Model 880 DT • • • . . • .• 5-6

To Adjust Bevel Drive - See Model 880 DT . . • • • • • . • . . • • 6-7-8-9-10

IV-1981

IV-1981 IV-1981

X-1979

IV-1981

IV-1981

IV-1981

page 5

402 • LIVE FRONT AXLE - Drive Shafts· Axle Drive

Page Dale To Dismantle, and Reassemble Drive

Shafts - To Dismantle Axle Drive -See Models 780 DT and 880 DT new 1-2 X-1979

To Reassemble Axle Drive - See Models 780 DT and 880 DT. . . . . • . . . 2 X-1979

Sections through Live Front Axle - See Models 780 DT and 880 DT new .. 3 IV-1981

50 - LIFT UNIT - Specification and Data

Lift - See Models 780 and 880. . . •. 1-2 X-1979 Lift Pump. . . . . . • • . . • . . • . 1 IV-1981 Implement Attachment - See Models

780 and 880 . . . . . • • • . . . • 4 X-1979 Trouble-Shooting Chart - See Models

780 and 880 . . . . . • . . . . . . 5 X-1979 Torque Data - See Models 780 and 880 6 X-1979

501 • LIFT UNIT· Lift

Description - See Models 780 and 880 To Remove - To Dismantle - See Models

780 and 880 • • . • . • • . . • .. 2-5 Hydraulic System Diagrams - See Models

780 and 880 • . . . . . . • . • • . 3 Operation - Linkage - See Models 780

and 880 • . • • . . . . . . . . . . 4 To Inspect - See Models 780 and 880 5 To Reassemble - See Models 780 and

880. • • • • • . . . . . . . . • . • 6 To Adjust - See Model 880 new as from

Frame No. 892290 ...•... 7-8-9-10-11 To Adjust Relief and Cylinder Safety

Valves - See Model 880/12 • • . •• 12 To Check Unload Valve - See Models

780 and 880 • • . • . • . • . • .• 13


Lift Pump. . . • . . . • • . . • . 1 To Overhaul - See Models 780 and 880 1-2 Output Test - Oil Filter - See Models

780 and 880 . . . . • . . . . . . • 3

X-1979

X-1979

IV-1981

IV-1981 X-1979

X-1979

X-1979

IV-1981

X-1979

IV-1981 X-1979

X-1979

Print No. 603.54.201/01 - IV-1981


A

page 6

503 - LIFT UNIT - Implement Attachment Page

Draught Control Device - See Model 880 new as from Frame No. 894073.. 1-2-3-4

504 - LIFT UNIT

SALAMI Remote Control Valves

Specification - See Models 780 and 880 1 Torque Data - See Models 780 and 880 1 To Dismantle - See Models 780 and 880 2 Description and Operation - See Models

780 and 880 . . • . • • • . • • . • 3 To Adjust Relief Valve - See Model 880

/12 ••••••••.••••.•• , 4-5 Spool Return Test - See Models 780 and

880. • . . • • • • • • • . . • . . • 6 Spool Leakage Test - See Models 780

and 880 . • . • • • . • . . . • • • 7

KONT AK Remote Control Valve

Specification and Data - See Models 780 and 880 . • • • • • • . . . • . . • 9

Torque Data - See Models 780 and 880 9 To Dismantle - See Models 780 and 880 10 Description and Operation - See Models

780 and 880 • • • • . . • • . • • • 11-12 To Check Relief Valve - See Models 780

and 880 • . . . • • • • • • . . .• 13 Spool Return Test - See Models 780 and

880. • . • • . • • • . • • • • . •• 14


I Dale

IV-1981

X-1979 X-1979 X-1979

X-1979

X-1979

X-1979

X-1979

IV-1981 IV-1981 IV-1981

IV-1981

IV-1981

IV-1981

GENERAL: Contents

Page Spool Leakage Test - See Models 780

and 880 • • • • • . • • • • • • •• 15

505 - LIFT UNIT - Auxiliary Cylinder

Specification and Data - See Models 780 and 880 •.••••.•••••••

Torque Data - See Models 780 and 880 Lift Schematics - See Models 780 and 880

1 1 2

Dale

IV-1981

X-1979 X-1979 X-1979


Charging System 1 Starter - MARELLI 2-3 Starter - BOSCH 4-5 Battery - Fuses - See Model 880 8 Lighting - Signals - Accessories - See

Models 780 and 880 • • • • 9 Starter Switch - Lighting Switch - Direc-

tion Light Switch - See Models ~ and 880 • • • •• • ••• 10

Controls and Instruments - See Models 780 and 880 11

Wiring Diagram. • • • • • 7-8

90 - SERVICE TOOLS

IV-1981 IV-1981 IV-1981 X-1979

X-1979

X-1979

X-1979 IV-1981

See those listed for 780 and 880 Mod- I els. • • • • • • • • • . • • • • .1-2-3-4-5 IV-1981


FiatTrattori BilBO 980 9800T

WORKSHOP

MANUAL

DIREZIONE


Section

GENERAL . ... A

SPECIFICATION 00

ENGINE . . . 10

POWER TRAIN 20

FRONT AXLE - STEERING. 30

LIVE FRONT AXLE 40

LIFT·UNIT . . . 50


SERVICE TOOLS . . . 90

COMMERCIALE Reprinted


Fiat Trattori GENERAL: A 980 Contents

A - GENERAL

See Models 780 and 880.

00 - SPECIFICATION

Identification Data - Weights

Engine •••••••••••

Power Train - Brakes - Steering - Front Axle - Live Front Axle - Rear WheelsPower Take-Off . • . . • • • • • •

Power Train Schematics ••• • • • .

Lift - Towing Attachments - Tyre Sizes Ballasting - Body - Electrical System -

Lighting - Instruments and Accessories ••

Dimensions •

Capacities. •

Page

6-7

1-2

3

4

5

6 7

8


Engine Block - Cylinder Head •

Crank Gear •.•• 2-3-4 Valve Gear •••• 5-6-7 Lubrication System 7-8 COOling System. 8 Fuel System. • • • 9-10-11 Torque Data . . . 12 Longitudinal Section through Engine 13

Date

IV-1981

IV-1981

IV-1981

IV-1981

IV-1981 IV-1981

IV-1981

IV-1981

IV-1981

IV-1981 IV-1981

IV-1981

IV-1981

IV-1981

IV-1981 IV-1981

IV-1981

100 - ENGINE - Description· Performance Data· To Remove • To Refit

Description • • • • • • • • . . • • •

Performance Data. • • . • • . • • •

Compression Test - See Model 780 • 3

IV-1981 IV-1981

IV-1981

IV-1981 To Remove - To Refit - See Model 780 4-5

101 - ENGINE· Engine Block • Cylinder Head

Cylinder Sleeves

Cylinder Head. •

102 • ENGINE· Valve Gear

Camshaft •••••••.•.••

Valves - Guides and Springs - See Model 780 •••••••••••••••••

Tappets - Push Rods and Rockers - See Model 780 •••

Timing Gear Train • • • • • • • • • •

1 j'V-1981 1 IV-1981

2

IV-1981

IV-1981

IV-1981

IV-1981

page 3

103 • ENGINE· Crank Gear

Crankshaft • • • .

Main and Big-End Bearings and Caps -See Model 780 •

Pistons and Rings Connecting Rods

Flywheel - See Model 780 .

104 - ENGINE. Fuel System

Note: Not Available.

Page

1

2 2

2

5

105 - ENGINE· Lubrication System

Lubrication System Diagram. •. ••

Oil Pump - Oil Filter - Oil Pressure Sending Unit. • • • • •

106 • ENGINE - Cooling System

Cooling System Diagram ••••••

Description - Water Pump - See Model

2

780. 2-3

Radiator - See Model 780 • • • • • • • 3 To Adjust Belt Tension. • ••.

Water Temperature Gauge - Thermostat - See Model 780 • • . • • 4

Date

IV-1981

X-1979 IV-1981

IV-1981 X-1979

IV-1981

IV-1981

IV-1981

X-1979 X-1979

IV-1981

X-1979

20 •. POWER TRAIN • Specification and Data

Clutches - See Model 880 with FERODO or LUK 12"/12" Clutch .. 2-3-4 X-1979

Transmission and Splitter - 12-speed -See Model 880 new 4-5-6 X-1979

Crawler Unit - See Models 780 and 880 new 6 X-1979

Rear Bevel Drive and Differential - See Model 880 new • . . 7 IV-1981

8 IV-1981 Brakes - See Models 780 and 880 new 9 X-1979

Final Drives. IV-1981

Power Take-Off • IV-1981

Torque Data . IV-1981

Cross Section through Power Train. 2 IV-1981

Longitudinal Section through Power Train. . . 3 IV-~981

200 • POWER TRAIN· To Remove and Refit

Control Platform - See Models 780 and 880 ................. . X-1979

Print No. 603.54.201/01 - /V-1981


A

page 4

201 • POWER TRAIN • Clutch

To Remove and Refit - See Model 880 with 12"/12" Clutch • . • • • • • .

To Overhaul FERODO 12"/12" Clutch

To Adjust FERODO 12"/12" Clutch To Overhaul LUK 12H /12" Clutch. • •

To Adjust LUK 12"/12" Clutch •••.

To Adjust Clutch Linkage - See Models 780 and 880 .••••••••••.

Page

1

2

2

10

Date

X-1979

IV-1981

IV-1981 IV-1981

IV-1981

X-1979

202 • POWER TRAIN • Gearbox and Splitter

To Remove - To Refit - To Dismantle -See Model 880, 12-speed • • • • • • 1-2-7

Longitudinal and Cross Sections - See Models 880, 12-speed, new • • • • • 6

To Inspect - See Models 780 and 880 7

To Reassemble - See Model 880, 12-speed, new, from Frame 889370 •• 7-8-9

To Adjust Gearbox - See Model 880, 12-speed, new, from Frame 889370 • 13-14-15

203 • POWER TRAIN • Crawler Gear

Description - To Overhaul Crawler for 12-speed Transmission - See Models 780 and 880, 12-speed Transmission

X-1979

X-1979

X-1979

X-1979

X-1979

X-1979

204 • POWER. TRAIN • Rear Bevel Drive and Differential

To Remove - To Refit - To Dismantle -To Reassemble - See Model 880.. 1-2

To Adjust Bevel Drive - See Model 880, new, from Frame 887701 • • • • • 3-5-7-10

To Adjust Differential - See Model 880 11-12

To Reassemble and Adjust Differential Lock - See Models 780 and 880 .. 12

To Adjust Differential Lock Control Pedal - See Models 780 and 880, new Pedal •••••••• • • • • • •. 13


X-1979

X-1979

X-1979

X-1979

X-1979

GENERAL: Contents

205 • POWER TRAIN • Brakes

Operation of Hydrostatic Circuit - See Models 780 and 880 • . • • . . • •

To Dismantle and Reassemble Brake Units - See Models 780 and 880 • .

To Dismantle and Reassemble Master Cylinder - See Models 780 and 880

To Adjust the Pedals - See Models 780 and 880 •.••••••.•.••.

To Re-install the Pedals - To Bleed the

Page

2

3

4

System - See Models 780 and 880 5

To Bench Test Master Cylinder - See Models 780 and 880 . • • • • . .. 6-7

Parking Brake - See Models 780 and 880 new ••...••••••••••• 8

206 • POWER TRAIN • Final Drives

To Dismantle • • • • . . . • • • • • •

To Reassemble - See Models 780 and 880 2

207 • POWER TRAIN • Power Take-Off

To Remove - To Refit - See Models 780 and 880 ••••••••••••.•

To Dismantle - To Reassemble - See Models 780 and 880, 540 - 1000 rpm

1 I

P.T.O. • • • • • • • • • • • • • •• 2-3

Date

IV-1981

IV-1981

IV-1981

IV-1981

X-1979

X-1979

X-1979

IV-1981

X-1979

X-1979

X-1979

30 - FRONT AXLE - STEERING - Specification and Data

Front Axle Hydrostatic Power Steering . • • • .• 1-2

Torque Data - See Models 780 and 880 5

IV-1981

IV-1981

IV-1981

301 • FRONT AXLE· STEERING • Front Axle

To Remove and Refit Axle - To Overhaul Steering Knuckles - See Models 780 and 880, Hydrostatic Steering. • • •

To Inspect Axle - See Models 780 and 880 .•..•.••.••..•...

IV-1981

2 IV-1981



Fiat Trattori GENERAL: A 980 Contents

page 5

303 - FRONT AXLE - STEERING - Power 402 - LIVE FRONT AXLE - Drive Shafts - Axle Steering Drive

Page Dale To Overhaul Power Steering - See

Models 780 and 880 . . . . X-1979

To Overhaul Power Cylinder - See Models 780 and 880 . . . .

To Overhaul Pump and Reservoir ...

To Bleed the System - See Models 780 and 880 ......••......

To Adjust Relief Valve of OVP 20 Unit on Bench - See Models 780 and 880

To Adjust Cylinder Overload Valves of OVP 20 Unit on Bench - See Models 780 and 880 . . . . • • • . . • . •

Fault Finding Chart - See Models 780 and 880 •.•.....•.....

Operation Diagrams and Sections - See Models 780 and 880 . . . . . . . •

2 X-1979

IV-1981

3 X-1979

4 X-1979

5 X-1979

6-7 X-1979

9 X-1979

40 - LIVE FRONT AXLE - Specification and Data

Front Axle - See Model 880DT . • . .1-2 (*)

Front Axle Drive • Drive Shafts - See Models 780 DT and 880 DT. • • 3

Torque Data - See Model 880DT •. , 4

(*) For turning radius see page 3, section 00.


To Remove - To Overhaul Final Drives and King Pins - See Model 880DT 1-2

To Adjust King Pin Bearings - To Adjust Wheel Bearings - See Model 880 DT 3-4

To Overhaul Bevel Drive and Differential - See Model 880 DT . . • • • . •. 5-6

To Adjust Bevel Drive - See Model 880DT ..•..•••••.•• 6-7-8-9-10

IV-1981

IV-1981

IV-1981

X-1979

IV-1981

IV-1981

IV-1981

Page To Dismantle and Reassemble Drive

Shaft - To Dismantle Axle Drive -See Models 880 DT and 880 DT, new 1-2

To Reassemble Axle Drive - See Models 780 DT and 880 DT. • . • . . . . . 2

Sections through Live Front Axle - See Models 780 DT and 880 DT, new . . 3

50 - LIFT UNIT· Specification and Data

Lift

Lift Pump.

Implement Attachment

Fault-Finding Chart - See Models 780 and 880 5

Torque Data - See Models 780 and 880:

- Section 50 . 6 - Section 505

501 - LIFT UNIT - Lift

Description - See Models 780 and 880

To Remove •......•.•...•

To Dismantle - See Models 780 and 880 2-5

Hydraulic System Diagrams . . . • • . 1

Lift Schematics - See Models 780 and 880 4

To Inspect - See Models 780 and 880 5

To Reassemble - See Models 780 and 880 & To Adjust - See Model 880, new, from

Frame 892290 .•.••.•.•. 7-8-9-10-11

To Adjust Relief and Cylinder Overload Valves - See Model 880/12 . . . • .

To Check Unload Valve - See Models 780 and 880 ••...••.•..•.•


Hydraulic Pump. . . . • . . . • •

13

To Overhaul - See Models 780 and 880 1-2

Output Test - Oil Filter - See Models 780 and 880 .••••..••..• 3

Dale

X-1979

X-1979

IV-1981

IV-1981

IV-1981

IV-1981

X-1979

X-1979

X-1979

X-1979

IV-1981

X-1979

IV-1981

IV-1981

X-1979

X-1979

X-1979

IV-1981

X-1979

IV-1981

X-1979

X-1979

pHnt No. 603.54.201/01 - IV-1981


A

page 6

503 - LIFT UNIT - Implement Attachment Page Dale

Draft Control Device - See Model 880, I new, from Frame 894073 • • • •• 1-2-3-4 IV-1981

504 - LIFT UNIT

SALAMI Remote Control Valves

Specification and I;>ata - See Models 780 and 880 •••••••••••.••

Torque Data - See Models 780 and 880 1

To Dismantle - See Models 780 and 880 2

Description and Operation - See Models 780 and 880 • • • • • • • • • • •• 3

To Adjust Relief Valve - See Model 880 /12. • • • • • • • • • • • • • • •• 4-5

Spool Return Test - See Models 780 and 880. • • • • • • • • • • • • • • • • 6

Leakage Test - See Models 780 and 880 7

KONT AK Remote Control Valves

Specification and Data - See Models 780 and 880 ••••••••••••••

Torque Data - See Models 780 and 880


9

9

X-1979 X-1979

X-1979

X-1!i79

X-1979

X-1979

X-1979

IV-1981

IV-1981

GENERAL: Contents

Pal1e Dale

To Dismantle - See Models 780 and 880 10 IV-1981 Description and Operation - See Models

780 and 880 .. 11-12 IV-1981 To Check Relief Valve - See Models 780

and 880 · . . . . . . . 13 IV-1981 Spool Return Test - See Models 780 and

880 •• .. · ... . . 14 IV-1981 Spool leakage Test - See Models 780

and 880 . · . . . . . . . 15 IV-1981


Charging System • •

Starter - MARELLI - See Model 880/5 2-3 Starter - BOSCH - See Model 880/5 • 4-5

Battery - Fuses - See Model 880 8

Lighting - Signals - Accessories - See Models 780 and 880 • • • • • 9

Starter Switch - Lighting Switch - Direc-tion Light Switch - See Models 780 and 880 • • • • • • • 10

Control and Instruments - See Models 780 and 880 • • • • • • • • • 11

Wiring Diagrams - See Models 780 and 880. • • • • • ••• 13-14

90 - SERVICE TOOLS

IV-1981

IV-1981 IV-1981

X-1979

X-1979

X-1979

X-1979

X-1979

See tools listed for Models 780 and I 880. • • • • • • ••••••••• 1-2-3-4-5 IV-1981


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