Challenger MT225 Manuale utente

CONTENTS - i

79019435B

MT225

TRACTORS

SERVICE MANUAL

79019435B

GENERALINFORMATION ......................................................................................................................................01

ENGINE...................................................................................................................................................................02a

Engine Drop In........................................................................................................................................................02b

Engine Drop In........................................................................................................................................................02c

MAJOR COMPONENTS ..........................................................................................................................................03

CLUTCH SYSTEM ..................................................................................................................................................04

TRANSMISSION .....................................................................................................................................................05

HYDROSTATICTRANSMISSION ............................................................................................................................06

REARAXLE AND BRAKES ...................................................................................................................................07

FRONTAXLE ..........................................................................................................................................................08

HYDRAULIC SYSTEM.............................................................................................................................................09

ELECTRICALACCESSORIES ................................................................................................................................10

STEERING SYSTEM ..............................................................................................................................................11

LUBRICATION & PERIODICMAINTENANCE ........................................................................................................12

GENERAL INFORMATION - A-1

79019435B

GENERALINFORMATION

CONTENTS

TRACTORIDENTIFICATION ..........................................................................................................................A-2

Model/SerialNumbers ..............................................................................................................................A-2

SPECIFICATIONS..........................................................................................................................................A-5

GENERALPRECAUTIONS

FORDISASSEMBLY ANDRE-INSTALLATION ...................................................................................... A-12

BeforeOperation .................................................................................................................................... A-12

PrecautionsTo BeFollowedWhen InstallingStandardized Parts ............................................................ A-12

STANDARDTORQUECHART ...................................................................................................................... A-15

SEALANT & ADHESIVES............................................................................................................................ A-16

CONVERSIONTABLES ............................................................................................................................... A-17

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A-2 - GENERAL INFORMATION

79019435B

GENERAL INFORMATION

FIG. 1

I-3209

FIG. 2

I-3226 1

TRACTOR IDENTIFICATION

Model/Serial Numbers

EachTractor is identified by means ofTractor model and

serial numbers. As a further identification, engine and

chassisare providedwith identification numbers.

FIG. 1: StandardtransmissionTractoridentificationplate,

1,locatedbelowoperator’sseat on right-hand side ofver-

tical floor panel.

FIG. 2: The hydrostatic transmission Tractor identifica-

tion plate, 1, located below drivers seat, close to floor.

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GENERAL INFORMATION - A-3

79019435B

FIG. 3

I-3033

FIGS. 3, 4 & 5: Identificationplate,for eachmodel,con-

tainsmodelnumbers, machineseriesnumbersandweight

inaddition toTractorserialnumbers.

FIG. 4

I-6090

FIG. 5

I-7051

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A-4 - GENERAL INFORMATION

79019435B

FIG. 6

I-3244

FIG. 7

I-3245

FIG. 6: Enginemodel number, 1,is caston right sideof

engineblock, below the injection pump.

Engine serial number, 2, is stamped into cylinder block,

belowengine modelnumber.

FIG. 7: Chassis number, 1, is stamped in right side of

frontframe.

NOTE: Reference to left-hand and right-hand, used

throughoutthis book,refersto theposition when

seatedin operator’s seatand facingforward.

NOTE: Terms “hydrostatic” and “standard” refer to type

of Tractor transmission. Information in this book

willapply toall Tractor versionsunless indicated

otherwise.

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GENERAL INFORMATION - A-5

79019435B

SPECIFICATIONS

1417

Mech.-4WD 1417

HST-4WD 1423/ST25/MT2

HST-4WD

1423/ST25/

MT225

Mech. 4WD

Dimensions (with ag-tires)

Front 5-12 5-12 5.00-12 5.00-12Tire size

Rear 8-16 8-16 9.5–16 9.5-16

Overall length 254.5 (100.2”) 254.5 (100.2”) 268.0 (105.5”) 268 (105.5”)

Overall width 100.0 (39.4”) 100.0 (39.4”) 104.0 (41”) 104.0 (41”)

Overall height

(at steering wheel) 128.0 (50.0”) 128.0 (50.0”) 130.0 (52”) 130.0 (52”)

Wheel base 142.5 (56.1”) 142.5 (56.1”) 152.0 (59.8”) 152.0 (59.8”)

Front 75.0 (29.5”) 75.0 (29.5”) 75.0 (29.5”) 75.0 (29.5)Wheel tread

Rear 77.0/95.0

(30.3/37.4”) 77.0/95.0

(30.3/37.4”) 80.0/91.0

(31.5/35.8”) 80.0/91.0

(31.5/35.8”)

Minimum ground clearance

(under-rear-axle bottom) 25.5 (9.6”) 25.5 (9.6”) 28.0 (11.0”) 28.0 (11.0”)

Minimum turning radius:

with braking

[without] (m)

2.1 (80.7”)

[2.4] (94.5”)

2.1 (80.7”)

[2.4] (94.5”)

2.1 (80.7”

2.4 (94.5”)

2.1 (80.7”)

2.4 (94.5”)

Weight (with fuel, oil & coolant) 605 (1334 lbs) 630 (1390 lbs) 680 (1499 lbs) 650 (1433 lbs)

Km/hr (mph)

Range Main

shift

1 1.17 (.73) 1.27 (.79)

2 2.11 (1.31) 0-7.93 (4.93) 0-9.30 (5.80) 2.29 (1.42)

3 3.48 (2.16) 3.77 (2.34)

R 1.90 (1.18) 0-5.60 (0-3.48) 0-7.00 (0-4.35) 2.06 (1.28)

1 5.86 (3.64) 6.36 (3.95)

2 10.60 (6.59) 0-18.5 (0-11.5) 0-21.61(0-13.40) 11.50 (7.15)

3 17.40 (10.81) 18.90 (11.74)

Traveling

Speed

R 9.50 (5.9) 0-13.0 (0-8.08) 0-16.2 (0-10.0) 10.32 (6.40)

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A-6 - GENERAL INFORMATION

79019435B

1417

Mech.-4WD 1417

HST-4WD 1423/ST25/MT225

Mech 4WD

Dimensions (with

turf-tires)

Front 20.5 x 8.00-10 20.5 x 8.00-10 23.0 x 10.50–12 23.0x10.50-12Tire size

Rear 29 x12.00-15 29 x12.00-15 315/75D-15 315/75D-15

Overall length 254.5

(100.2”) 254.5

(100.2”) 268

(105.5) 268

(105.5)

Overall width 119.0

(46.9”) 119.0

(46.9”) 121.5

(47.8”) 121.5

(47.8”)

Overall height (at steering wheel) 127.0

(50.0”) 127.0

(50.0”) 131.0

(51.6”)

Wheel base 142.5

(56.1”) 142.5

(56.1”) 152.0

(59.8”) 152.0

(59.8”)

Front 87.0

(34.25”) 87.0

(34.25”)

Wheel tread

Rear 90.0

(35.43”) 90.0

(35.43”)

Minimum ground

clearance

(under-rear-axle

bottom)

24.5

(9.64”)

24.5

(9.64”)

29.0

(11.4”)

29.0

(11.4”)

Minimum turning radius:

with braking

[without] (m)

2.1 (80.7”)

2.4 (94.5”)

2.1 (80.7”)

2.4 (94.5”)

2.4

(106.3”)

2.4

(106.3”)

Weight (with fuel, oil &

coolant) 610

(1345 lbs) 636

(1400 lbs) 695

(1532 lbs) 665

(1466 lbs.)

Km/hr (mph)

Range Main

shift

1 1.12

(.69) 1.28

(.80)

2 2.02

(1.26) 0-7.60

(0-4.72) 0-9.4

(0-5.83) 2.32

(1.44)

3 3.33

(2.07) 3.81

(2.37)

R 1.30

(.81) 0-5.37

(3.34) 0-7.00

(0-4.35) 2.08

(1.29)

1 5.61

(3.49) 6.42

(3.98)

2 10.10

(6.23) 0-17.7

(0-11.0) 0-21.8

(0-13.54) 11.60

(7.21)

3 16.60

(10.32) 19.08

(11.85)

Traveling speed

R 6.80

(4.23) 0-12.5

(0-7.77) 0-16.4

(0-10.20) 10.40

(6.46)

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GENERAL INFORMATION - A-7

79019435B

SPECIFICATIONS

Models 1417

Engine

Make ISEKI Diesel

Model E393

Type Indirect injection, overhead valve

Displacement 928 cc/56.6 cu. in.

Number of cylinders 3

Bore 74 mm

Stroke 72 mm

Engine horsepower (gross) @ engine rpm 15.5/2500

Firing order 1 - 3 – 2

Compression ratio 22.5:1

Low idle speed 950 rpm

High idle speed 2750 rpm

Valve clearance (cold) - intake and exhaust 0.25 mm / .010”

Air cleaner Single - dry element

Engine cooling Liquid, forced circulation

Cold starting Glow plugs (3)

Transmission 1417 STD 1417 Hydro

Primary F3/R1 Infinite

Range 2 2

Gear selections

F6/R2 F2/R2

Clutch Dry single disc (Dia: 184 mm)

Brakes Mechanically actuated dry shoes

Power take off (PTO)

Control Sliding gear and clutch

Rear PTO shaft 35 mm (1.375 in) diameter –six spline

Clockwise rotation (facing shaft)

Output 1417 STD 1417 Hydro

Speeds @ engine rpm 540 @ 2308 540 @ 2398

Mid PTO (accessory) shaft 25 mm (1 in) diameter – fifteen spline

Output Clockwise rotation (facing shaft)

Speeds @ engine rpm 2000 @ 2446 2000 @ 2400

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A-8 - GENERAL INFORMATION

79019435B

Hydraulics

Main hydraulic system

Pump Gear pump (Open center)

Output – maximum 4.8 gpm /18.0 liters/min

Pressure - relief valve setting 140 kgf/cm3/ 1990 psi

Rear linkage type Three-point hitch

Control Operated by single ‘position’ control lever

Lift capacity 1058 lbs./480 kg measured at link ends

Steering system type Hydrostatic

Pump Gear/Flow divider

Output–maximum 5.5 liters/min./1.5 gpm

Pressure–relief valve setting 105 kfg/cm3

Electrical system

System voltage 12 volt - negative (-) ground

Battery 36hA (5hr)/433 cca

Charging 40 amp alternator with internal regulator

Capacities

Engine crankcase with filter 2.9 qts/2.7 liters

Transmission and differential housing (including

hydraulics) (liters) STD 14.3 qts / 13.5 liters Hydro 15.9 qts./15.0 liters

Fuel tank 3.6 gal/13.5 liters

Cooling system 5.4 qts/5.1 liters

Front axle - four-wheel drive 2.9 qts/2.7 liters

Maximum axle loading

Front four-wheel drive – both models 1433 lbs/650 kg

Rear axle – both models 1653 lbs/750 kg

Tire size

Front

Agricultural tire 5–12 4PR

Turf tire 20.5 x 8.00-10 4PR

Rear

Agricultural tire 8–16 4PR

Turf tire 29 x 12.00-15 4PR

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GENERAL INFORMATION - A-9

79019435B

SPECIFICATIONS

Models 1423 / ST25 / MT225

Engine

Make ISEKI Diesel

Model E3112-B05

Type Indirect injection, overhead valve

Displacement 1123 cc/68.5 cu.in.

Number of cylinders 3

Bore 78.2 mm/3.078”

Stroke 78 mm/3.070”

Engine horsepower (net) @ engine rpm 16.5kW (22.5hp)/2800

Firing order 1 - 3 – 2

Compression ratio 22.5:1

Low idle speed 950 rpm

High idle speed 3050 rpm

Valve clearance (cold) - intake and exhaust 0.25 mm / .010”

Air cleaner Single - dry element

Engine cooling Liquid, forced circulation

Cold starting Glow plugs (3)

Transmission Hydro Standard

Primary Infinite 3

Range 2 2

Gear selections F2/R2 F6/R2

Brakes Mechanically actuated dry shoe

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