Content      ..     28      29      30      31     ..

New Holland Tractor Workmaster 50 / Workmaster 60 / Workmaster 70 / Tier 4B (final). SERVICE MANUAL - page 30

7 - MAINTENANCE

Four-Wheel Drive (4WD) front axle differential oil - Change fluid

1. Remove the drain plug (1) and collect the oil in a suit-

able container.

2. Replace the plug and fill the differential with oil at fill

plug (2) until oil level is at the bottom of the fill port.

96096503

1

3. Add NEW HOLLAND AMBRA MULTI G 134™ HY-

DRAULIC TRANSMISSION OIL hydraulic oil through

fill port, until correct oil level is obtained.

4. The capacity for the differential is 5.5 l (5.8 US qt).

Four-Wheel Drive (4WD) front axle hub oil - Change fluid

1. Drain the front axle hub oil by positioning the wheel so

the filler plug (1) is closest to the ground. Remove the

plug and allow the oil to drain.

76073648N

1

2. Reposition the wheel so the filler hole (2) is level with

the center of the hub, midway from the top to the bot-

tom. Fill the hub until the oil level is at the bottom of the

fill port.

3. Add NEW HOLLAND AMBRA MULTI G 134™ HY-

DRAULIC TRANSMISSION OIL hydraulic oil through

fill port, until correct oil level is obtained. The capacity

for the hub is 1.2 l (1.3 US qt).

76073647N

2

7-36

7 - MAINTENANCE

Air filter

NOTICE: The outer element may be dry cleaned every 300 h of operation or when warning bulb glows (which ever is

earlier). Outer element to be replaced after four times of cleaning or maximum of 1200 h Inner element to be replaced

with outer element replacement or every 1200 h.

The air cleaner assembly (A) is located under the right-

hand side of the engine hood. The air cleaner assembly

consists of an inner and outer paper element within a

metal housing.

Engine air cleaner outer element replacement

The air cleaner (A) which is located under the hood,

consists of an inner and outer paper element within a

metal casing.

1. Unlatch the three retaining clips, (1) and lift off the air

cleaner assembly cover (2).

GNIL14TR00501AA.PNG

1

2. Remove the outer element (3). from the air cleaner as-

sembly by gently twisting the end of the filter clockwise

to disengage the seal.

GNIL14TR00502AA.PNG

2

3. Then pull the filter straight out of the housing, not at an

angle.

GNIL14TR00503AA.PNG

3

7-37

7 - MAINTENANCE

4. Make sure the inner element (4) remains in place.

GNIL14TR00504AA.PNG

4

5. Clean inside of air cleaner housing and check that the

sealing surfaces for inner and outer elements are clean.

6. Install new inner and outer air cleaner elements into

housing. Make sure that both elements seals are

seated against the inside of the air cleaner housing.

7. Reinstall cover (2) and secure cover to air cleaner

housing with the three retaining clips (1).

GNIL14TR00501AA.PNG

5

7-38

7 - MAINTENANCE

Power Take-Off (PTO) clutch

The Power Take-Off (PTO) clutch engagement pres-

sure needs to be checked and adjusted to prevent slip-

page of the PTO during operation under load.

1. When the PTO clutch linkage is properly adjusted, the

PTO lever (1) should have 2 mm (0.079 in) of free play

at pin (A) when the PTO handle is in the "OFF" position.

2. If the free play of lever is not correct, adjust by loos-

ening jam nut (2) and shortening or lengthening cable,

(3).

56061331N

1

3. Use a spring scale (4) to measure the force needed

to fully engage the PTO handle (5). Proper amount of

force at end of handle to fully engage the PTO clutch is

125 - 142 N (28 - 32 lb)

86090136N

2

NOTICE: When PTO clutch linkage is properly adjusted, the total cable travel should be 21 mm (0.83 in) while en-

gaging and disengaging the PTO clutch.

7-39

7 - MAINTENANCE

Every 1800 hours

Fan and drive - Replace

1. Position a linear tensioner belt remover tool in the au-

tomatic tensioner release slot.

GNIL14TR00527AA

1

2. Rotate the automatic tensioner, in the direction of the

arrow, to remove the tension on the serpentine belt.

a - Serpentine belt

b - Tensioner release slot

3. Install an allen screw into the tensioner hole to block

the tensioner rotation.

GNIL14TR00527AA

2

4. Before removing the serpentine belt, note the belt po-

sition on the alternator, and idler pulleys.

5. Remove the serpentine belt.

Every 4000 hours

Alternator - Replace

1. Contact your authorized dealer

7-40

7 - MAINTENANCE

As required

Lubrication points

Grease Fittings

Apply grease with the help of a grease gun to the lubri-

cation fittings, as shown in Figures 1 - 11.

Use only Genuine NEW HOLLAND AMBRA GR-9

MULTI-PURPOSE GREASE .

NOTICE: Grease daily when operating in adverse condi-

tions, but do not overgrease, damage to the seals may oc-

cur, where applicable.

1. Hydraulic lift linkages

86090139N

1

2. Hydraulic lift lever shaft

86090131N

2

3. Clutch pedal shaft

20108800

3

7-41

7 - MAINTENANCE

4. Brake pedal shaft

20108801

4

5. Front wheel spindles and hubs (Two-Wheel Drive

(2WD) front axles)

36090133N

5

6. Front axle trunion pin (2WD front axles)

86090132N

6

7. Front axle rear pivot (Four-Wheel Drive (4WD) front

axles)

96096504

7

7-42

7 - MAINTENANCE

8. Front axle front pivot (4WD front axles)

96096506

8

9. Front axle wheel steering knuckles (4WD)

96096505N

9

10. Steering cylinder pivots (4WD front axle shown).

96096507

10

11. Rear axle seal grease fitting.

GNIL14TR00555AA

11

7-43

7 - MAINTENANCE

Headlights

1. To avoid blinding of on coming drivers, adjust the angle

of the beams. Adjust the head light so that the high

beam is 100 - 400 mm below the centre of the headlight

at a distance of 6 m.

Front headlight bulb — replacement

1. Open the tractor hood.

3. Remove the electrical connector (1).

GNIL14TR00534AA

1

4. Compress retaining clip (2) , and remove bulb, (3) ,

from the socket.

5. Insert bulb assembly and secure with retaining clips.

7-44

7 - MAINTENANCE

Fuses

1. The Fuse box is located at the left-hand side of the

intercooler mounted on the ECU frame.

GNIL14TR00507AA

1

Fuse No

Rating

Circuit

1

15 A

Fuse ECU 01

2

10 A

Fuse ECU 01

3

10 A

LAMDA PROBES

4

10 A

Cluster Hot

5

15 A

Work lamp

6

15 A

Hi/Low Beam

7

25 A

Starter SW

8

25 A

Heater

9

5A

Loader

10

10 A

ECU/ Safety Start

11

25 A

Dummy 1

12

15 A

Dummy 2

The fuse box (1) is located at the right-hand rear side

of the engine compartment, mounted on the engine fire-

wall. To access the fuse box, lift the engine hood and

open the fuse box cover to gain access to individual

fuses.

Six fuses are provided in one row. See the following

table for details of the circuits protected by the fuses.

GNIL14TR00529AA

2

7-45

7 - MAINTENANCE

NOTICE: Do not replace a blown fuse with another of a different rating.

Fuse identification

Fuse No.

Rating

Circuit

(1)

15 A

Instrument Panel

(2)

15 A

Safety Start System

(3)

15 A

Horn, Turn Signals

(4)

20 A

Headlights

(5)

20 A

Worklight

(6)

15 A

Hazard Flasher Lights

(7)

15 A

Spare Fuse

(8)

20 A

Spare Fuse

86065632

3

7-46

7 - MAINTENANCE

Bulbs

Stop/Turn/Position lights, bulb replacement

1. The bulbs are accessible after removal of the plastic

lenses assembly.

2. Remove the two screws (1) and take out the lens as-

sembly (2).

3. The bulbs can be removed by pressing in and turning

approximately 20 degree counterclockwise. Reassem-

ble in reverse order.

20108813

1

4. Tail light (3) and flasher/turn signal light (4)

20108814

2

NOTICE: When replacing the lenses, take care not to overtighten the retaining screws.

Bulb Size

• Tail Light - #1157

• Flasher/Turn Signal - #1156

7-47

8 - TROUBLESHOOTING

8 - TROUBLESHOOTING###_8_###

SYMPTOM(S)

Viewing error codes

Error codes transmission

The tractor's electronic control units are able to detect op-

erating faults or errors occurring in key areas such as the

engine, gearbox, electric systems.

Should a malfunction or error occur, the relevant symbol

and error code will appear in the display.

This display may be accompanied by the amber or red

warning lights on the control panel coming on and by an

audible warning, depending on the severity of the fault.

Contact your NEW HOLLAND authorized dealer's spe-

cialized personnel where envisaged.

DCAPLT5NE002S8A

1

Engine - Troubleshooting

Problem

Possible Cause

Correction

During the ignition phase

Flat battery

Recharge or replace battery

the control board and the

engine do not start.

Blown fuse

Replace fuse

The electric cables are disconnected

or

Check the electric connections

they do not guarantee continuity

Failure of engine revolution sensor

Replace the sensor

Apply to a service workshop

The engine does not start

Presence of air in the fuel supply circuit

Carry out bleeding (See “Fuel supply circuit

bleeding”)

Dirty or faulty injectors

Replace the injectors

Apply to a service workshop

Faulty fuel pressure regulation valve

Replace the valve

Apply to a service workshop

Failure of the start control

Replace the start control

Apply to a service workshop

water and/or impurities in the fuel

Apply to a service workshop

Clogged fuel filter

Replace filter

(See

“Fuel filter replace-

ment.”)

The starter motor runs

Electromagnet failure

Check the starter motor

idle

Apply to a service workshop

The starter motor is not

Flat battery

Recharge or replace battery

running

Interrupted electric connection

Check the electric connections

Worn brushes

Replace the worn brushes

Apply to a service workshop

The engine stops after

Presence of air in the fuel supply circuit

Carry out bleeding (See “Fuel supply circuit

ignition

bleeding”)

Clogged fuel filter

Replace filter

(See

“Fuel filter replace-

ment.”)

Injection pump malfunction

Apply to a service workshop

Faulty fuel pressure regulation valve

Replace the valve

Apply to a service workshop

Presence of air in the fuel supply circuit

Carry out bleeding (See “Fuel supply circuit

bleeding”)

Water and/or impurities in the fuel

Apply to a service workshop

8-1

8 - TROUBLESHOOTING

Problem

Possible Cause

Correction

The engine stops after

The electric cables are disconnected

or

Check the electric connections

ignition

they do not guarantee continuity

The engine does not reach

Clogged fuel filter

Replace filter

(See

“Fuel filter replace-

the operating speed

ment.”)

Presence of air in the fuel supply circuit

Carry out bleeding (See “Fuel supply circuit

bleeding”)

Injection pump malfunction

Apply to a service workshop

Dirty or faulty injectors

Replace the injectors

Apply to a service workshop

Water and/or impurities in the fuel

Apply to a service workshop

Clogged air filter

Clean or replace the filter

Insufficient combustion air flow

Apply to a service workshop

Engine overheating

Apply to a service workshop

Overload

Reduce the load

Emission of black smoke

Dirty or faulty injectors

Replace the injectors

from the exhaust pipe

Apply to a service workshop

Faulty turbocharging turbine

Replace the turbine

Apply to a service workshop

Light emission of white

oil level too high

Adjust the oil level

smoke from the exhaust

pipe

Worn segments

Check compression

Apply to a service workshop

Worn valve guideways

Check wear

Apply to a service workshop

Abundant emission of

Burnt gasket head

Apply to a service workshop

white smoke from the

exhaust pipe

Water pump malfunction

Replace the pump

Apply to a service workshop

Replace the belt (See “Changing the belt

(type Poly-V)”)

Thermostat valve malfunction

Replace the valve

Apply to a service workshop

Coolant too low

Top up, if necessary (See “Engine coolant

level check”)

The pressure gauge

Failure of pressure gauge

Check or replace the pressure gauge

shows a too low engine

Apply to a service workshop

oil pressure and the

corresponding warning

light comes on

Oil level too low

Adjust the oil level (See “Engine oil level

control”)

Oil pump failure

Check or replace the pump

Apply to a service workshop

Faulty sensor

Check and, if appropriate, replace the sen-

sor.

Apply to a service workshop

Engine oil filter blocked

Replace the engine oil filter (See “Oil filter

cartridge replacement”)

The oil pressure warning

Engine oil pressure too low

Turn off the engine. Apply to a service

light comes on

workshop

The coolant temperature

Coolant too low

Adjust the engine coolant level (See “En-

warning light comes on

gine coolant level check”)

Stuck overpressure valve of the load plug

Replace the plug

Water pump malfunction

Replace the pump

Apply to a service workshop

Thermostat valve malfunction

Replace the valve

Apply to a service workshop

8-2

8 - TROUBLESHOOTING

Problem

Possible Cause

Correction

The coolant temperature

Broken or worn belt

Replace the belt (See “Changing the belt

warning light comes on

(type Poly-V)”)

Output reduction

Clogged fuel filter

Replace filter

(See

“Fuel filter replace-

ment.”)

Presence of air in the fuel supply circuit

Carry out bleeding (See “Fuel supply circuit

bleeding”)

Injection pump malfunction

Replace the pump

Apply to a service workshop

Dirty or faulty injectors

Replace the injectors

Apply to a service workshop

Clogged air filter

Clean or replace the filter

Engine overheating

Apply to a service workshop

Insufficient combustion air flow

Apply to a service workshop

Particulate filter is clogged

The particulate filter regeneration is neces-

sary

The battery warning light

The alternating current generator does not

Check and, if appropriate, replace the alter-

comes on

charge the battery

nating current generator

Apply to a service workshop

8-3

8 - TROUBLESHOOTING

Electrical systems - Troubleshooting

Problem

Possible Cause

Correction

The electrical system

Battery terminals loose or corroded.

Clean and tighten battery terminals.

does not work.

Discharged battery.

Charge or replace battery.

Fusible link wire failure.

Check for cause of failure and replace

fusible link.

Low starter motor speed

Connections loose or corroded.

Clean and tighten terminals.

and difficulty in starting

engine.

Battery discharged.

Charge or replace battery.

Improper ground circuit.

Check and clean ground connections.

Starter motor does not

High-low selector gear & gear shifter levers

Place shift levers in the neutral position.

function.

not in neutral.

Connections loose or corroded.

Clean and tighten connections.

Battery discharged.

Charge or replace battery.

Faulty starter motor.

Replace starter motor.

Battery charge indicator

Fan belt loose or broken.

Adjust belt tension or replace belt.

light illuminates with the

engine running.

Alternator faulty.

Check charging system, repair as needed.

Faulty battery.

Replace battery.

Battery not charging.

Faulty alternator.

Contact your authorized dealer.

Terminals loose or corroded.

Clean and tighten terminals.

Fan belt loose or broken.

Adjust fan belt tension or replace belt.

Faulty battery.

Replace battery.

8-4

8 - TROUBLESHOOTING

Hydraulic systems - Troubleshooting

Problem

Possible Cause

Correction

3-point does not raise

Low hydraulic oil level.

Check hydraulic oil level, add oil as

when the control valve

needed.

lever is actuated.

Hydraulic oil filter clogged.

Replace hydraulic oil filter.

Faulty hydraulic pump.

Contact you authorized dealer.

Control valve linkage misadjusted.

Contact you authorized dealer.

3-point linkage does not

Low hydraulic oil level.

Check hydraulic oil level, add oil as

lift fully.

needed.

Hydraulic oil filter clogged.

Replace hydraulic oil filter.

Control valve linkage misadjusted.

Contact you authorized dealer.

Control valve internally linkage misadjusted

Contact you authorized dealer.

Hydraulic fluid is

Hydraulic control valve not returning to neu-

Return all control valve levers to the neutral

overheating.

tral position.

position.

Hydraulic fluid level is to low.

Check hydraulic fluid level, add oil as

needed.

Hydraulic filter clogged.

Replace hydraulic filter.

3-point linkage lowers

Drop rate speed control misadjusted.

Adjust drop rate control for faster drop

slowly.

speed.

3-point linkage binding

Check for damaged parts or corrosion.

Auxiliary hydraulic

Hose to coupler connections not correct.

Check hose and valve couplers for damage

functions do not function

or contamination.

properly.

Auxiliary system overloaded.

Reduce load on system.

8-5

8 - TROUBLESHOOTING

Brakes and controls - Troubleshooting

Problem

Possible Cause

Correction

Brakes actuate only when

Incorrect brake pedal linkage adjustment.

Adjust brake pedal linkage for proper pedal

pedals are depressed

travel.

fully.

Tractor pulls to one side

Brake pedals linkage not adjusted equally.

Adjust brake pedals linkages equally.

when brakes are applied.

Brakes noisy during

Transmission oil contamination.

Drain and replace transmission oil.

engagement.

Brake discs worn or contaminated.

Replace brake discs.

8-6

8 - TROUBLESHOOTING

Fault code of digital instrument

FAULT CODE

SYMBOL

Function

Acoustic signal

Warning light on

Automatic regeneration of the diesel

3786

particulate filter (DPF) inhibited; manual

YES

regeneration starting only.

Regeneration of the diesel particulate

3787

filter (DPF) inhibited; contact your dealer

YES

immediately

Battery isolator switch on at key-on for more

14200

then 30 seconds

NO

YES

Supply voltage at 5 V too high

14015

NO

YES

Supply voltage at 5 V too low

14016

NO

YES

Cranking line shorted to +12 V

14021

NO

YES

Cranking line shorted to GND

14022

NO

YES

Fuel sensor short to Vcc or open circuit

14051

NO

YES

Fuel sensor short to GND

14052

NO

YES

Seat switch closed for 25 hours

14058

YES

YES

Seat switch short to Vcc or open circuit

14093

YES

YES

Seat switch shorted to GND

14094

YES

YES

Electronic lift present but not configured

14109

NO

YES

Transmission module missing

14900

NO

YES

Engine module missing

14901

NO

YES

8-8

9 - SPECIFICATIONS

Transmission speeds (8x8)

(2WD and 4WD) with

14.9x28 rear tires, at 2600 RPM, rated engine speed

Forward/Low/ 1st

2.9 km/h (1.8 mph)

Forward/Low/2nd

4.3 km/h (2.7 mph)

Forward/Low/3rd

6.4 km/h (4.0 mph)

Forward/Low/4th

8.8 km/h (5.5 mph)

Forward/High/1st

10.4 km/h (6.5 mph)

Forward/High/2nd

15.7 km/h (9.7 mph)

Forward/High/3rd

23.2 km/h (14.4 mph)

Forward/High/4th

31.9 km/h (19.8 mph)

Reverse/Low/1st

3.0 km/h (1.9 mph)

Reverse/Low/2nd

4.6 km/h (2.8 mph)

Reverse/Low/3rd

6.8 km/h (4.2 mph)

Reverse/Low/4th

9.3 km/h (5.8 mph)

Reverse/Low/1st

11.0 km/h (6.8 mph)

Reverse/Low/2nd

16.6 km/h (10.3 mph)

Reverse/Low/3rd

24.5 km/h (15.2 mph)

Reverse/Low/4th

33.7 km/h (20.9 mph)

Tires

Front

Agricultural

2WD

7.5 x 16, 6 ply

4WD

8.3 x 24 , 6 Ply

12.5 x 18

Rear

Agricultural

2WD and 4WD

13.6 x

28 R1, 6 Ply

14.9 x28 R1, 6 Ply

14.9

x28

R1,

6

Ply

18.4 x 24 R4

18.4 x 24 R4

18.4 x 24 R4

9-6

9 - SPECIFICATIONS

Tractor dimensions - General

GNIL14TR00583FA

1

NOTICE: The following dimensions are based on standard tractors fitted with tire sizes as shown. Allowance must

be given for tires of larger or smaller dimensions.

9-7

9 - SPECIFICATIONS

2WD/4WD Dimension

Dimension

A

Overall Width

1690.0 mm (66.5 in)

1714.0 mm (67.5 in)

B

Under front axle

495.0 mm (19.5 in)

405.0 mm (15.9 in)

C

Front Standard Track

1322.0 mm (52.0 in)

1385.0 mm (54.5 in)

Setting

D

Rear Standard Track

1336.0 mm (52.6 in)

Setting

E

To Top of Exhaust

2300.0 mm (90.6 in)

2317.0 mm (91.2 in)

F

Less Cab (top of

2450.0 mm (96.5 in)

2478.0 mm (97.6 in)

seat/ROPS)

G

Under Standard Drawbar

429.0 mm (16.9 in)

456.0 mm (18.0 in)

H

Weight carrier

285.0 mm (11.2 in)

175.0 mm (6.9 in)

Front weights

500.0 mm (19.7 in)

389.0 mm (15.3 in)

J

Wheel base

1970.0 mm (77.6 in)

1960.0 mm (77.2 in)

K

Overall Length

3290.0 mm (129.5 in)

3404.0 mm (134.0 in)

L

Rear Axle to top of ROPS

1795.0 mm (70.7 in)

M

Drawbar to Rear Axle

226.0 mm (8.9 in)

N

Ground to Top of ROPS

1927.0 mm (75.9 in)

1957.0 mm (77.0 in)

when Folded

Tractor total weight

Model

2WD

4WD

3000.0 kg (6613.9 lb)

9-8

10 - ACCESSORIES

10 - ACCESSORIES###_10_###

Front-end loader

GNIL14TR00581FA

1

Your tractor can, on request, be fitted for the front loader

The loader is controlled by joystick (2), installed in the cab

connection.

on the right-hand side of the driver's seat.

NOTE: For installation of the front loader and its opera-

The kit comprises:

tion, refer to the manual supplied by the manufacturer of

the loader.

(1) Support for loader connection.

(2) Joystick.

10-1

10 - ACCESSORIES

Control valve joystick - Overview

WARNING

WARNING

Escaping fluid!

Avoid injury and/or machine damage!

Do not connect or disconnect hydraulic quick

Before disconnecting the couplers, you must:

coupler under pressurized conditions. Make

-lower the connected attachments,

sure all hydraulic pressure is removed from

-stop the engine,

the system before connecting or disconnect-

-move the control levers forward and back-

ing hydraulic quick coupler.

ward to discharge pressure from the hydraulic

Failure to comply could result in death or se-

system.

rious injury.

Failure to comply could result in death or se-

W0095B

rious injury.

W0933A

Joystick positions

(A) Lever forward - lowering function

(B) Lever backward - lifting function

(E) Lever completely forward - float function

(C) Lever to the right - lowering function

(D) Lever to the left - lifting function

Moving the joystick lever diagonally operates two con-

trol valves simultaneously. This function is useful when

working with loaders, fertiliser spreaders, combined seed

drills/fertiliser spreaders, etc.

GNIL14TR00566AA

1

Safety latch

To use the joystick, disengage the safety latch (1) by

pulling the safety latch out. When the joystick is not being

used, push the safety latch in to lock the joystick and to

prevent the joystick from being operated accidentally.

2

GNIL14TR00567AA

NOTE: Do not hold the joystick at either the extended

allowed to continue for long periods of time the oil will

or retracted position when the cylinder has reached the

overheat, which may lead to problems with hydraulic and

travel limit, as this would result in the system operating

drive line components.

at maximum pressure, thus opening the relief valve. If

10-2

Content      ..     28      29      30      31     ..