New Holland T6010, T6020, T6030, T6050, T6070 Delta and Plus Tractors. Operator's Manual

SECTION 3 -- FIELD OPERATION

AUTOMATIC PICK--UP HITCH AND DRAWBAR

The automatic pick--up hitch and drawbar on your

tractor may be the drop down type, swing back type

or the hydraulic extending type.

All pick--up hitches are raised and lowered using the

3--point lift and are fully self-supporting when locked

in the operating (raised) position.

Depending on type, the pick--up hitch will be

equipped with a reversible hook and clevis drawbar

or interchangeable hook and clevis drawbars.

184

Raising and Lowering the Hitch (All Types)

With Mechanical Draft Control

Move both position (2) and draft (3) control levers

fully rearwards until the 3-point lift is supporting the

weight of the hitch.

To unlock the hitch, slide the collar (1) upwards

Figure 184, and then pull up and hold the release

handle. Lower the hitch to the ground by means of

the position control lever.

185

With Electronic Draft Control

Rotate the thumb wheel (2) fully forward to position

10. Move the Position Control lever

(1) fully

rearwards until the 3-point lift is supporting the weight

of the hitch.

To unlock the hitch, slide the collar (1) upwards

Figure 184, and then pull up and hold the release

handle. Lower the hitch to the ground by means of

the position control lever.

186

3--108

SECTION 3 -- FIELD OPERATION

Position the tractor so that the hitch hook (2) is

beneath the eye of the implement drawbar and, using

the position control lever, raise the hitch slowly until

an audible click indicates the locking latches (1) have

engaged the cross tubes (3).

IMPORTANT: Ensure that the height limit control is

at the maximum height position. Failure to observe

this may result in the hitch failing to latch correctly.

Push the position control lever forward so that the

weight of the pick--up hitch (and attached implement)

is supported by the locking latches.

187

NOTE: The maximum static downward load on the

hitch hook (all types) must not exceed 3000 kg (6610

lb.)

When towing equipment exerting high static

downward forces, such as two-wheeled trailers, etc.,

always use the close-coupled drawbar position.

Alternatively, change to the hitch hook mode.

IMPORTANT: When supporting equipment on the

drawbar or pick-up hitch ensure that the total weight

on the rear axle does not exceed the maximum static

downward load or the rear tyre load capacity,

whichever is the lower (See Rear Tyre Pressures and

188

Loads at the end of Section 3).

3--109

SECTION 3 -- FIELD OPERATION

Drop Down Pick--Up Hitch (where fitted)

The hook on the drop down hitch is interchangeable

with the clevis drawbar.

To change from the hook to drawbar, lower the

pick--up hitch, extract the two securing pins

(2)

Figure 189 and withdraw the hook assembly.

Install the clevis drawbar assembly and secure with

the two pins.

IMPORTANT: Never raise or lower the pick--up hitch

when in the drawbar mode with a trailer attached.

189

There are three holes in the drawbar support. When

using holes (1), (2), and (3) in conjunction with the

holes in the clevis drawbar, a choice of

implement/drawbar hitch points, relative to the end

of the P.T.O. shaft may be achieved. See Figure 190

and the table below for hitch point position and

maximum permitted static downward load on the

drawbar:

The two additional holes (4), are provided in the

hanger for the rear securing pin so the drawbar may

be offset to the left or right of the centre line.

The drawbar, Figure 191, may be inverted to vary the

190

height of the drawbar/implement hitch point.

Hole (see

P.T.O Shaft to

Maximum Static

Fig. 190 )

Drawbar Hitch Point

Downward Load

Drawbar clevis uppermost

356 mm (14 in.)

1650 kg (3630 lb.)

406 mm (16 in.)

1500 kg (3300 lb.)

Drawbar clevis underneath

356 mm (14 in.)

1650 kg (3630 lb.)

406 mm (16 in.)

1500 kg (3300 lb.)

191

3--110

SECTION 3 -- FIELD OPERATION

When not in use, the hook or clevis drawbar may be

stored in the bracket (1), attached to the rear axle.

Ensure the clamp screw (2), is fully tightened to

retain the drawbar in the bracket.

192

Extendible Pick--Up Hitch (where fitted)

The extendible pick--up hitch can be hydraulically

extended to aid visibility when attaching towed

equipment.

Operated through one of the rear remote valves, the

hitch is extended or retracted using the remote valve

lever. The hoses should be connected in such a way

that moving the remote valve lever to E (Extend) will

extend the hitch, moving the lever to R (Retract) will

retract the hitch.

NOTE: The illustration shows hitch operation

through remote valve number I, however, it may be

operated using an alternative valve where required.

Lower the hitch until it is clear of the locking latches

and then extend the hook or clevis rearwards by

moving the remote valve lever to (E). With the

193

drawbar extended continue to lower the hitch until it

is just above the ground.

Position the tractor so that the hitch hook (2) is

beneath the eye of the implement drawbar and, using

the position control lever, raise the hitch until the

implement drawbar is just clear of the ground.

Fully retract the pick--up hitch by moving the remote

valve lever to (R). To assist in retracting the hitch

release the tractor brakes to allow movement of the

tractor towards the implement. Re--apply the

handbrake before leaving the tractor seat.

With the hitch in the fully retracted position raise it

slowly until an audible click indicates the locking

latches (1) have engaged the cross tubes (3).

194

3--111

SECTION 3 -- FIELD OPERATION

IMPORTANT: The hitch must be fully retracted

before it will lock correctly. Always ensure the hitch

is locked before operating the tractor.

NOTE: The maximum static downward load on the

hitch hook must not exceed 3000 kg (6610 lb.)

To change from the hook to drawbar, lower the

pick--up hitch, extract the two securing pins (1) and

withdraw the hook assembly.

Install the clevis drawbar assembly and secure with

the two pins.

195

Maximum Permissible Clevis Load

P.T.O Shaft to

Maximum Static

Drawbar Hitch Point

Downward Load

406 mm (16 in.)

1500 kg (3300 lb.)

IMPORTANT: When supporting equipment on the

drawbar or pick-up hitch ensure that the total weight

on the rear axle does not exceed the maximum static

downward load or the rear tyre load capacity,

whichever is the lower (See Rear Tyre Pressures and

Loads at the end of Section 3).

When not in use, the hook or clevis drawbar may be

stored in the bracket (1), attached to the rear axle.

Ensure the clamp screw (2), is fully tightened to

retain the drawbar in the bracket.

If the hydraulic hitch pressure lines are disconnected

from the remote valve, ensure the male couplings

are protected from contamination and the pressure

lines secured to the tractor to avoid possible

damage.

196

3--112

SECTION 3 -- FIELD OPERATION

TRAILER BRAKES

(where fitted)

Hydraulic Trailer Brakes (except Italy)

Hydraulic trailer brakes may be connected into the

hydraulic system via a quick--release coupling (1) at

the rear of the tractor.

NOTE: The position of the trailer brake coupling may

vary slightly from that shown, dependent upon the

type of remote control valves installed.

197

If thetrailerbrakehoseisconnectedinto thecoupling

the trailer brakes will be automatically applied when

the footbrakes are used to stop the tractor.

IMPORTANT: It is essential that the brake pedals are

locked together to ensure correct operation of trailer

brakes, balanced operation of the tractor brakes and

four wheel braking (four wheel drive tractors only).

WARNING

With the tractor engine off, hydraulic pressure cannot

be applied to the trailer braking system. When

parking the tractor/trailer combination apply the

tractor and trailer parking brakes while the engine is

still running. With the footbrakes locked together

apply the parking brake, stop the engine and

immediately block the wheels. Always lock the brake

pedals together when a hydraulically braked trailer is

attached to the tractor.

NOTE: Always keep the dust--cap in place when the

trailer brake coupling is not in use. It is a legal

requirement in most countries that trailer brakes may

only be connected to the tractor coupling by means

of a compatible female coupling.

3--113

SECTION 3 -- FIELD OPERATION

Hydraulic Trailer Brakes

(Italy only)

The hydraulic trailer braking system on tractors for

the Italian market function in a slightly different way

to the universal system previously described.

If thetrailerbrakehoseisconnectedinto thecoupling

the trailer brakes will be automatically applied when

the footbrakes are used to stop the tractor or when

the tractor handbrake is applied when the engine is

running. When the engine is switched off, the trailer

brakes will remain applied.

198

IMPORTANT: It is essential that the brake pedals are

locked together to ensure correct operation of trailer

brakes, balanced operation of the tractor brakes and

four wheel braking (four wheel drive tractors only).

To release hydraulic pressure and free the trailer

brakes, start the engine, depress both brake pedals

and release the tractor handbrake.

NOTE: The light (1), on the instrument panel will

flash, accompanied by critical alarm, to indicate that

hydraulic oil pressure to the trailer brake circuit is low.

Stop the engine and investigate the cause.

ATTENTION: Should the trailer brake warning light

commence to flash, the trailer brakes will apply

automatically.

NOTE: Always keep the dust--cap in place when the

trailer brake coupling is not in use. It is a legal

requirement in most countries that trailer brakes may

only be connected to the tractor coupling by means

of a compatible female coupling.

199

3--114

SECTION 3 -- FIELD OPERATION

AIR--OPERATED TRAILER BRAKING SYSTEMS

Air--Operated Trailer Brakes

(except Italy)

WARNING

Single line trailer braking systems are designed for

use up to a maximum speed of 25 km/h (15 MPH).

Tractor/trailer combinations with dual line braking

systems may be used at a higher speed but must at

all times comply with local legal requirements. Gross

train weight, i.e., tractor plus trailer(s) and/or

individual trailer weight must not exceed that laid

down in local regulations governing the use of

trailers.

The following text covers operation of the air-

operated trailer braking systems that may be

installed as an alternative to hydraulically-actuated

trailer brakes.

The system consists of an engine-driven air

compressor, one or two air reservoirs, dependent

upon type of system installed, a pressure gauge,

control valves, two or three couplers and related

pipework.

A filter/dryer unit in the braking system extracts

moisture from the pressurised air helping to avoid

componenets in the implement braking system from

freezing in low temperatures. Any moisture collected

is automatically exhausted through the system

unload valve.

The couplers installed at the back of the tractor may

be connected to single or dual line trailer braking

systems. Either or both types may be installed. The

air lines connected to the couplers are colour-coded

black, red and yellow. The black line is used for a

single line system, the red and yellow lines are used

for dual line systems.

IMPORTANT: The trailer brakes will only operate

when both tractor brake pedals are applied.

Therefore, always lock the brake pedals together

when a trailer is attached to the tractor.

NOTE: The tractor handbrake is connected to the

main control valve. Whenever the handbrake is

applied, the trailer brakes are activated.

3--115

SECTION 3 -- FIELD OPERATION

Operation

When starting the engine with a trailer connected into

the tractor air brake system, chock the wheels and

release the parking brake and footbrakes. The

warning light (1) Figure 200, will illuminate until air

pressure builds up to 4.5 -- 5.5 bar.

The pressure will continue to rise, as indicated by the

air pressure bargraph in the Dot Matrix Display,

Figure 201. To select the air pressure bargraph, use

the CAL/SEL switch or, where fitted, the enhanced

keypad.

200

The air tank(s) should reach operating pressure

within 3 minutes of start--up but may take longer,

dependent upon the size of the trailer brake

reservoir(s).

Once required pressure has been reached a loud

‘pop’ will be heard, signifying that the unload valve

has opened to allow excess pressure to escape to

atmosphere.

IMPORTANT: Apply the footbrakes several times,

ensuring that the pressure, as indicated by the

gauge, drops as the brakes are applied and rises

again when they are released. Never drive the tractor

201

with the trailer brake warning light on.

IMPORTANT: When the footbrakes are applied ,with

the handbrake off, ensure that the front wheel drive

indicator light (1) Figure 202 illuminates and that all

stop lights are functional.

IMPORTANT: Various types of trailer braking

systems are available. Check the trailer

manufacturers’ instruction manual before making

connections to the tractor air brake system.

Clean the trailer and tractor connectors before

coupling up the hose(s). Ensure that connections are

secure. Check the trailer brakes regularly to ensure

that they are functioning correctly.

202

CAUTION

Do not over use the brakes on steep down hill

gradients. Use the same gear going down hill as you

would use for going up the same hill.

3--116

SECTION 3 -- FIELD OPERATION

Dual Line System

For a trailer with a dual line braking system, connect

the supply line hose to the red coupler (1) and the

control line hose to the yellow coupler (2).

IMPORTANT: The dual line system will only operate

if both the red and yellow lines are connected.

Red line (brake supply line) -- (1): Air is supplied to

the red coupler at full system pressure. This is the

brake supply line and charges the reservoir(s) on the

trailer. If the trailer braking system is disconnected

from the tractor for any reason, the air pressure will

203

fall to zero and the trailer brakes will be applied.

Yellow line (control line)

(2): As the tractor

brakes are applied, increasing air pressure is

supplied, via the yellow coupler, to the control valve

on the trailer until full system pressure is generated.

Application of the trailer brakes is proportional to the

pressure applied to the tractor brake pedals.

Single Line System

If the trailer has a single line system an additional

coupler is supplied. Connect the hose to the black

coupler (1) Figure 204.

A pressure of 5.5 bar is available at the coupler at all

times when the tractor brake pedals and parking

brake are released. Application of the tractor brakes

causes the pressure to drop to zero allowing the

trailer brakes to be applied.

204

3--117

SECTION 3 -- FIELD OPERATION

Air--Operated Trailer Brakes

(Italy Only)

This system operates in a similar manner to the dual

line system, previously described, except that a

combined dual coupler is utilised. Please read all the

previous text relating to pneumatic trailer brakes plus

the following:

The coupler is protected by a metal cover. To remove

the cover, press the handle (2) down. The handle is

held in position by a stiff spring and some pressure

is required to move it down to release the cover (1).

205

Connections

The lines to the couplers are colour-coded for ease

of use. The supply line to the left-hand coupler (1) is

red and the control line to the right-hand coupler (2)

is yellow. The trailer hoses will have a male dual

coupler. Press down the handle (3) and insert the

trailer coupler. When the handle is released, it will

lock the trailer and tractor couplers together.

206

3--118

SECTION 3 -- FIELD OPERATION

Tractor/Trailer Brake Bias Control

When the tractor leaves the factory, this control is set

to allow maximum available braking effort to the

trailer. Under most conditions, the control will remain

in this position and will give well balanced braking.

Occasionally, with some trailers this setting may

provide a greater braking bias to the trailer than is

ideal. In this case the braking force to the trailer may

be reduced slightly by turning the adjuster (1) in an

anti--clockwise direction.

To turn the valve, it is first necessary to pull the knob

207

out. After adjustment, push the knob in to lock the

setting. The adjuster must be reset to the fully

clockwise position when a different trailer is used.

WARNING

The brake balance adjustment is extremely sensitive

and should not be rotated more than one half turn

before testing with the attached trailer fully loaded. If

further adjustments are required, they should be

carried out following the same procedure. Failure to

do this may result in an imbalance between tractor

and trailer braking forces if the valve is rotated too far

in the anti--clockwise direction.

3--119

SECTION 3 -- FIELD OPERATION

EQUIPMENT MOUNTING POINTS

Your tractor is provided with a number of threaded

holes for the purpose of attaching optional

equipment. All threaded holes will accept M20 x 2.5

fixings. The depth of the holes will vary depending on

location, therefore it is important the hole is checked

before inserting any mounting bolt or stud to avoid

damage to the thread or metal casting.

Transmission Housing

Figure 208

shows the mounting points on the

left-hand side of the tractor. There are matching

threaded holes on the right-hand side.

NOTE: Care should be taken when using holes in the

transmission housing when mounting equipment to

avoid any conflict with the cab or components below

the tractor.

IMPORTANT: Do not attach any equipment or

brackets to the cab mounting points

208

Front Axle Support Casting

Depending on tractor specification, the number of

holes in the side of the axle support casting may vary.

NOTE: Consult the hardware torque chart in Section

for correct torque settings when attaching

equipment to the mounting points. Re--check the

torque settings after one hour of operation and on a

daily basis thereafter.

209

NOTE: If you have front end weights on your tractor

then these holes will have already been utilised for

the weight carrier.

CAUTION

When attaching equipment to the mounting points,

adjust the tyre pressures to compensate for the

additional weight. Ensure the maximum axle loads

for the tractor are not exceeded, see page 3--132.

210

3--120

SECTION 3 -- FIELD OPERATION

FRONT WHEEL TRACK ADJUSTMENT

Standard Axle

(two wheel drive)

(6 stud fixing -- where fitted)

Securing Bolt Locations

Track Width

WARNING

Refer to Figure 211

7.50 x 16 Tyres

Your tractor is produced with lights that meet lighting

A -- C

1465 mm (57.6 in.)

regulations when operating or travelling on the public

highway. If the wheel track setting is adjusted beyond

B -- D

1567 mm (61.6 in.)

the initial factory position then you may be required

C -- E

1669 mm (65.7 in.)

to reposition the lights or fit auxiliary lighting to

D -- F

1770 mm (69.6 in.)

comply with legal requirements. Before travelling on

the highway, ensure that the overall tractor width

E -- G

1872 mm (73.7 in.)

does not exceed the maximum permitted in your

F -- H

1974 mm (77.7 in.)

country.

G -- J

2076 mm (81.7 in.)

H -- K

2177 mm (85.7 in.)

The front axle consists of a hollow centre beam with

a telescopic section at each end. Adjustment of the

Note: Reversing the wheels will increase track width by

front wheel track width is effected by extending both

134.4mm (5.29”)

ends of the axle equally. A number of holes at

approximately 50 mm (2 in.) intervals are provided in

Heavy Duty Axle

the telescopic sections for track adjustment

(8 stud fixing -- where fitted)

purposes.

Securing Bolt Locations

Track Width

Refer to Figure 211

10.00 x 16 Tyres

NOTE: The track width is the distance between the

centre of each tyre, measured at ground level.

A -- C

1580 mm (62.2 in.)

B -- D

1667 mm (65.6 in.)

NOTE: The track settings shown are approximate.

C -- E

1754 mm (69.0 in.)

The front wheel discs are dished. The track settings

in the tables above are with the convex side of the

D -- F

1841 mm (72.4 in.)

discs facing outwards. If the front wheels are

E -- G

1928 mm (75.9 in.)

reversed on the hubs the track settings shown in the

tableswillbeincreasedbyapproximately100mm

F -- H

2016 mm (79.3 in.)

(4 in.).

G -- J

2103 mm (82.7 in.)

H -- K

2190 mm (86.2 in.)

To extend the axle, apply the handbrake and place

blocks at the front and rear of the rear wheels. Jack

Note: Reversing the wheels will increase track width by

up the front axle and place on axle stands. Remove

108.2mm (4.25”)

the securing bolts

(1) Figure 211, securing the

right-hand telescopic section to the centre beam.

Wide Axle (North America only)

(8 stud fixing -- where fitted)

Repeat on the left-hand side of the axle.

Securing Bolt Locations

Track Width

Refer to Figure 211

10.00 x 16 Tyres

Loosen the locknuts and remove the locating bolts

(2) Figures 212 and 213, from both ends of the track

A -- C

1782 mm (70.1 in.)

control rod behind the axle.

B -- D

1869 mm (73.5 in.)

C -- E

1956 mm (77.0 in.)

Figure 212 shows the left-hand end of the track

control rod. Figure 213 shows the right-hand end.

D -- F

2043 mm (80.4 in.)

The extendible sections are drilled at 50 mm (2 in.)

E -- G

2130 mm (83.8 in.)

intervals and two locating bolts pass through the tube

F -- H

2218 mm (87.3 in.)

and into the solid sections to lock the track rod

assembly at the required length. Additionally, the

G -- J

2305 mm (90.7 in.)

left-hand end of the solid section is threaded to

H -- K

2392 mm (94.1 in.)

provide fine adjustment.

Note: Reversing the wheels will increase track width by

108.2mm (4.25”)

3--121

SECTION 3 -- FIELD OPERATION

Reset the left and right-hand axle telescopic

sections, passing the securing bolts through the

centre beam and telescopic sections, as indicated in

Figure 211 and the track setting tables.

Position both front wheels straight ahead and install

the locating bolts (2) Figures 212 and 213, in the

appropriate drilling (1) at each end of the track control

rod.

ABCDEFGHJK

Tighten the nuts on the axle extension securing bolts

to 400 Nm (300 lbf.ft.). Tighten the locating bolts (2)

Figures 212 and 213, to 150 Nm (110 lbf. ft.) and

their locknuts to 75 Nm (55 lbf. ft.). Re-check all

211

torque settings after 50 hours of operation.

Front Wheel Alignment

After resetting the track width, the front wheel toe-in

may require adjustment. For correct operation, the

front wheels should be parallel or toe in slightly.

Measure the distance between the wheel rims at hub

height at the front of the wheels. Rotate both front

wheels 180° and check the measurements again,

this time at the rear of the wheels. This will eliminate

wheel rim run-out errors. The correct toe-in setting is

0 -- 13 mm (0 -- 0.5 in.), i.e. the measurement taken

at the front of the rims should be the same as the rear

or be smaller by up to 13 mm (0.5 in.).

212

Should it be necessary to adjust the front wheel

toe--in, proceed as follows:

Remove the locating bolt (2) from the left--hand end

of the track rod, slacken the clamp bolt (3) and turn

the threaded section of the track rod (4) in or out until

the toe-in is correct when the locating bolt is

re-inserted. Tighten the clamp bolt to 100 Nm (75

lbf.ft.), the locating bolts to 150 Nm (110 lbf. ft.) and

their locknuts to 75 Nm (55 lbf. ft.).

WARNING

Owners should ensure that all steering components

are maintained in a reliable and satisfactory

213

condition to ensure safe operation and comply with

legal requirements.

3--122

SECTION 3 -- FIELD OPERATION

FRONT WHEEL TRACK ADJUSTMENT

(four wheel drive)

Front Axle with Variable Track Front Wheels

The sectioned drawings illustrate the wheel rim and

disc positions relative to the hub at various track

settings. The track widths available are as follows:

Track settings with 24” and 28” front wheels

Position

Track Width

(Figure 214)

1566 mm (61.6 in.)

1662 mm (65.4 in.)

1766 mm (69.5 in.)

1862 mm (73.3 in.)

1966 mm (77.4 in.)

2062 mm (81.1 in.)

2166 mm (85.2 in.)

2262 mm (89.0 in.)

The track widths in the above table are based on a

tractor fitted with a Standard 4WD front axle.

With front axle Suspension, add 18mm (0.7 in.).

With SuperSteer front axle, add 18mm (0.7 in.).

NOTE: The track widths in the table above are

nominal and may vary by up to 25 mm (1 in.)

dependent upon tyre size.

IMPORTANT: With optional Dynamic fenders fitted,

narrower track settings may not be attainable due to

insufficient clearance between the tyre or rim and

any part of the fender or attaching hardware.

IMPORTANT: If your tractor is equipped with front

fenders, ensure there is adequate clearance

between fender and wheel under all operating

conditions. With the smaller track settings a foul

condition may occur between the tyre or fender and

the tractor when the wheels are turned to the full lock

position particularly when the axle is fully articulated.

To avoid this condition, adjust the fenders and/or

steering stops.

214

3--123

SECTION 3 -- FIELD OPERATION

With Non Adjustable Front Wheels

Tractors equipped with non adjustable front wheels

offer a choice of two track settings. To alter the track

width, interchange both front wheels to provide a

narrow (A) or wide (B) track setting as required.

NOTE: Tractors with a

K/mh

(31

MPH)

transmission will be fitted with non adjustable front

wheels).

NOTE: When interchanging left and right--hand

wheel assemblies, ensure the “V” of the tread at the

top of the tyre remains pointing in the direction of

forward travel.

215

Track settings with 24” and 28” Wheels

4WD Front axle type

Position

Track Setting

Standard -- min. setting

1854 mm (73.0 in.)

Standard -- max. setting

2080 mm (81.9 in)

Suspended -- min. setting

1821

mm (71.7 in.)

Suspended -- max. setting

1978

mm (77.9 in.)

Supersteer -- min. setting

1821

mm (71.7 in.)

Supersteer -- max. setting

1978

mm (77.9 in.)

NOTE: The track widths in the table above are

nominal and may vary by up to 28 mm (1.1 in.)

dependent upon wheel rim offset.

REFITTING THE FRONT WHEELS

When refitting or adjusting a wheel, tighten the bolts

to the following torques then re-check after 50 hours

of operation and, thereafter as required.

Disc to hub nuts

294 Nm (217 lbf.ft.)

Disc to rim nuts

250 Nm (184 lbf.ft.)

(where applicable)

WARNING

Never operate the tractor with a loose wheel rim or

disc. Always tighten nuts to the specified torque and

at the recommended intervals. Owners should

ensure that all steering components are maintained

in a reliable and satisfactory condition to ensure safe

operation and comply with legal requirements.

3--124

SECTION 3 -- FIELD OPERATION

FRONT WHEEL ALIGNMENT

After resetting the track width, the front wheel

alignment may require adjustment. For correct

operation, the front wheels should be parallel.

Measure the distance between the wheel rims at hub

height at the front of the wheels. Rotate both front

wheels 180° and check the measurements again,

this time at the rear of the wheels. This will eliminate

wheel rim run-out errors. The correct setting is 0⁺/_--

3 mm (0 -- 0.12 in.)

Should it be necessary to adjust the front wheel

TA43

alignment, proceed as follows:

216

Remove and discard the self-locking nut (2), on the

left-hand end of the track control rod (1) and extract

the track rod end. Loosen the lock nut (3) and screw

the track rod end into or out of the track rod to shorten

or lengthen the assembly, as required. Re-insert the

track rod end and, when the setting is correct, secure

with a new self-locking nut. Tighten the self-locking

nut to 100 Nm (74 lbf. ft.) and the lock nut to 180 Nm

(133 lbf. ft.).

STEERING STOPS

Two steering stops are incorporated in the axle, one

at each end. The stops are adjustable and should be

set to provide a minimum clearance of 20 mm (0.75

in.) between the tyres and any part of the tractor on

full left and right lock with the axle fully articulated.

To adjust, slacken the locknut and turn the stop bolt

anti-clockwise to reduce the steering angle of the

wheels or clockwise to increase the steering angle.

Tighten the locknut to 150 Nm (110 lbf. ft.).

TA41

217

3--125

SECTION 3 -- FIELD OPERATION

FRONT AXLE OSCILLATION STOPS

(where fitted)

Where fitted, the axle oscillation stops are installed

one each side of the axle. Each stop consists of a

plate (1), secured to the underside of the front axle

support by two flush fitting, socket head screws.

Oscillation of the axle causes the stop plate to

contact the projection (2) on the axle casing, so

preventing further movement. With the stop plates in

position, as shown, axle oscillation is 8°.

Extract the screws and remove the stop plates to

increase axle oscillation to 12°.

218

NOTE: If the oscillation stops are removed, ensure

that there is adequate clearance between the front

tyres and any part of the tractor with the axle fully

articulated.

3--126

SECTION 3 -- FIELD OPERATION

DYNAMIC FRONT FENDERS

(where fitted)

Two types of optional front fender are available, both

offering a full range of adjustment to suit varying tyre

sizes and track widths. The method of adjustment is

very similar for both, but the following text describes

the setting of the dynamic fender. Ensure all fixing

bolts are re--tightened after adjustment.

Dynamic fenders turn with the front wheels as the

tractor is steered. As the steering angle increases, a

spring centered pivot in the fender mount restricts

the turn angle of the fenders. This prevents

interference with the tractor hood or loader frame

while allowing the wheels to continue turning

beneath the fender. As a result, tighter turns can be

achieved that would not be possible with a

conventional fender, particularly at narrower track

settings.

Lateral adjustment, fender support

A fender may be moved horizontally, towards or

away from the tractor, by relocating the metal shims

(2) either side of the fender support (1).

Vertical adjustment

The fender may be moved vertically by relocating the

bolts

(3) in the appropriate holes in the fender

support. A number of the holes are elongated

allowing the fender to be tilted forward or rearward.

Fender turn stop

219

An adjustable stop bolt (3), is fitted to both fender

support brackets. When turning, the bolt contacts a

fixed stop (2) on the axle housing restricting the angle

at which the fender will turn while allowing the wheels

to continue turning beneath the fender. The stops

may require adjusting if the track width or tyre size is

changed.

Lateral adjustment, fender

The support and bracket attachment points (1)

beneath the fender, provide further lateral

adjustment allowing the fender to be centered over

the tyre.

220

Narrow Track Settings

With certain options and/or tyre sizes, the smaller

track settings may not be attainable due to minimal

clearance between tyre or rim and any part of the

fender or attaching hardware.

3--127

SECTION 3 -- FIELD OPERATION

REAR WHEEL TRACK ADJUSTMENT

CAUTION

Your tractor is produced with lights that meet lighting

regulations when operating or travelling on the public

highway. If the wheel track setting is adjusted beyond

the initial factory position then you may be required

to reposition the lights or fit auxiliary lighting to

comply with legal requirements. Additionally, before

travelling on the highway, ensure that the overall

tractor width does not exceed the maximum

permitted in your country.

221

Rear wheel track adjustment is effected by changing

the wheel rim relative to the centre disc, the rim

and/or the disc relative to the axle hub or by

inter--changing the rear wheels.

CAUTION

Tractor wheels are very heavy. Handle with care and

ensure, when stored, that they cannot topple and

cause injury.

NOTE: There are three different designs of centre

disc dependent upon tyre size and tractor model.

The centre discs shown are as follows:

222

Square centre disc -- variable track (Type 1)

Round centre disc -- variable track (Type 2)

Round centre disc -- fixed track (Type 3)

The type of centre disc installed will affect the track

setting. Identify the type of centre disc fitted to your

tractor wheels, then refer to the following table and

Figure 224 to see the wheel rim and disc positions

necessary to achieve the required track setting.

WARNING

223

Never operate the tractor with a loose wheel rim or

disc. Always tighten nuts to the specified torque and

at the recommended intervals.

3--128

SECTION 3 -- FIELD OPERATION

The sectioned drawings shown, illustrate the wheel

rim and disc positions relative to the hub at various

track settings.

IMPORTANT: When interchanging left and

right--hand wheel assemblies, ensure the “V” of the

tread at the top of the tyre remains pointing in the

direction of forward travel.

When refitting or adjusting a wheel, tighten the bolts

to the following torques then re-check after 50 hours

of operation and thereafter as required.

Rear disc to hub nuts

250 Nm (184 lbf. ft.)

Rear disc to rim nuts

M16 nuts

250 Nm (184 lbf. ft.)

Track Settings

Adjustable Rim (Types 1 and 2)

Track

All Models

setting

34” and 38” Wheels

Figure 224

Figures 221, 222

1412 mm (55.5 in.)

1510 mm (59.4 in.)

1614 mm (63.5 in.)

1710 mm (67.3 in.)

1812 mm (71.3 in.)

1910 mm (75.1 in.)

2014 mm (79.2 in.)

2110 mm (83.0 in.)

NOTE: With the larger tyre sizes, the narrower track

settings may not be attainable due to minimal

clearance between tyres and fenders or equipment.

The dimensions shown in the above chart relating

to Figure 224 are nominal and should be used as

a guide only. Track settings may vary dependent

upon wheel type and tyre size.

224

3--129

SECTION 3 -- FIELD OPERATION

Fixed Rim (Type 3)

A track adjustment of approximately 50 mm (2.0in.)

each side, may be achieved by interchanging wheel

assemblies.

Track

Disc type 3

setting

(18.4 x 38 tyre)

Figure 225

Figure 223

1730 mm (68.1 in.)

1834 mm (72.2 in.)

NOTE: Depending on rim type, the above settings

may vary by approximately 10.0mm (0.4 in.).

225

TOBACCO AXLE

(North America only)

If your tractor has theoptional Tobaccoaxle, thenthe

track settings shown in the table on page 3--129 are

increased by 152 mm (6 in) by the addition of spacers

between the wheels and the rear axle flanges.

When refitting or adjusting a wheel, tighten the bolts

to the following torques then re-check after 50 hours

of operation and thereafter as required.

Disc to hub nuts

250 Nm (184 lbf. ft.)

Disc to rim nuts

250 Nm (184 lbf. ft.)

Track

Tobacco Axle

setting

34” and 38” Wheels

Figure 224

Figures 221, 222

1564 mm (61.5 in.)

1662 mm (65.4 in.)

1766 mm (69.5 in.)

1862 mm (73.3 in.)

1964 mm (77.3 in.)

2062 mm (81.1 in.)

2166 mm (85.2 in.)

2262 mm (89.0 in.)

3--130

SECTION 3 -- FIELD OPERATION

BAR AXLE (where fitted)

CAUTION

Your tractor is produced with lights that meet lighting

regulations when operating or travelling on the public

highway. If the wheel track setting is adjusted beyond

the initial factory position then you may be required

to reposition the lights or fit auxiliary lighting to

comply with legal requirements. Additionally, before

travelling on the highway, ensure that the overall

tractor width does not exceed the maximum

permitted in your country.

INTRODUCTION

Tractors equipped with a bar axle may have fixed or

manual adjust wheels. The wheels are attached to a

cast iron hub (3) which is clamped to the bar axle (1).

After unclamping the hub, the wheel may be moved

along the bar to provide a range of track widths. A

range of 190 mm (7.5 in.) of movement per wheel, or

380 mm (15 in.) overall, is available with the 98 inch

axle.

Track width adjustment is effected by moving the

complete wheel/hub assemblies in or out on the axle

226

shaft. Reduce the track width by moving the wheel

towards the tractor, increase the width by moving the

wheel outwards.

Additionally, repositioning the wheel rim on the

centre disc or reversing the centre disc on the axle

hub will provide a wider range of adjustment.

Tractor wheels are very heavy so it is recommended

that you do not remove them to reposition the rims

on the disc unless the track setting required is

outside the slide range of the bar axle.

3--131

SECTION 3 -- FIELD OPERATION

MOVING A WHEEL ON THE AXLE SHAFT

Block the front wheels and jack up and support the

rear axle.

Adjustment of the track setting is achieved by sliding

the complete wheel/hub assembly on the axle shaft.

Loosenthetwocentrewedgebolts(1)Figure 227,

approximately 0.5 in. (12 mm). Remove the four

outer wedge bolts (2).

Clean the bolts and threaded holes in the wedges

before lubricating and installing the outer wedge

bolts at (1) Figure 228. These bolts are used as jack

bolts to push against the wedges. Tighten the jack

bolts evenly until the wedges loosen on the axle

shaft. The wheel assembly will now be free to slide

in or out on the axle shaft.

IMPORTANT: Do not use a torque greater than 300

ft.lbs.

(407 N⋅m) on the jack bolts. The use of

penetrating oil between the wedge and axle shaft will

be of benefit. If difficulty is experienced, place a shaft

protector over the end of the axle shaft and strike with

a hammer to ‘shock’ the wedge free.

227

WARNING

Take suitable precautions, including the use of safety

glasses, against the possibility of flying metal

particles.

Set the wheel to the desired position on the shaft.

Remove the jack bolts and replace them in the outer

holes (2) Figure 228.

Tighten all six wedge retaining bolts in increments

of 50 ft.-lbs. (68 Nm) until a final torque of 221 ft.-lbs.

(300 Nm) is achieved.

IMPORTANT: The wedge bolts must be tightened

228

evenly.

Repeat the procedure on the other wheel, making

sure that both rear wheels are the same distance

from the ends of the axle shafts.

NOTE: Check the torque of all six wedge retaining

bolts on each wheel after driving the tractor for 200

yards (200 m), after 1 hour and 10 hours operation

and thereafter at the 50-hour service intervals.

WARNING

Never operate the tractor with a loose wheel rim or

disc. Always tighten nuts to the specified torque and

at the recommended intervals.

3--132

SECTION 3 -- FIELD OPERATION

WHEEL ADJUSTMENT

The sectioned drawings shown in Figures 229 and 230 illustrate the wheel rim and disc positions at various track

settings. In each table, two track width settings are quoted for each axle type. These are the minimum and

maximum achievable with both wheel assemblies moved fully in (toward the tractor) and fully out (away from

the tractor).

Track Adjustment

Rim and Disc Position

1524 -- 1830 mm (60 -- 72 in.)

1727 -- 2030 mm (68 -- 80 in.)

1930 -- 2235 mm (76 -- 88 in.)

2133 -- 2438 mm (84 -- 96 in.)

229

Wheels with steel centre disc bolted to flange on the rim

NOTE: With the larger width tyres, it may not be

NOTE: The track widths shown in Figure 229 are

possible to move the wheels to the narrower settings

nominal and may vary from that shown dependent on

due to limited clearance between the tyre and fender.

wheel and tyre size.

3--133

SECTION 3 -- FIELD OPERATION

Track Adjustment

Rim and Disc Position

1524 -- 2133 mm (72 -- 84 in.)

1625 -- 2235 mm (64 -- 88 in.)

230

Wheels with steel centre disc welded to flange on the rim

NOTE: The track widths in Figure 230 are nominal

When refitting or adjusting a wheel, tighten the bolts

and may vary from that shown dependent on wheel

to the following torques then re-check after 50 hours

and tyre size.

of operation and thereafter as required.

NOTE: With the larger width tyres, it may not be

IMPORTANT: When interchanging left and

possible to move the wheels to the narrower settings

right--hand wheel assemblies, ensure the “V” of the

due to limited clearance between the tyre and fender.

tread at the top of the tyre remains pointing in the

direction of forward travel.

CAUTION

Tractor wheels are very heavy. Handle with care and

Disc to hub nuts

ensure, when stored, that they cannot topple and

8 Stud, steel disc wheels

260 Nm (190 lbf. ft.)

cause injury.

Disc to rim nuts

Steel disc wheels

M16 nuts

240 Nm (177 lbf. ft.)

WARNING

Never operate the tractor with a loose wheel rim or

disc. Always tighten nuts to the specified torque and

at the recommended intervals.

3--134

SECTION 3 -- FIELD OPERATION

BALLASTING AND TYRES

Selecting Ballast

GENERAL

When tractor horsepower loads vary, the optimum

weight of the tractor will change. This means that

ballast may have to be added or removed to maintain

Maximum tractor performance is dependent upon

the best tractor performance. Proper ballast will

proper ballasting and tyre selection. Maximum

greatly improve tractor operation and ride.

efficiency will be achieved when tractor weight is

correct for the application.

The amount of ballast required is affected by:

The tyres selected for your tractor must be able to

• Weight of tractor

support the weight of the tractor and equipment and

must also be able to provide adequate traction to

• Soil and traction conditions

utilize the tractor horsepower and turn it into useful

drawbar horsepower.

• Type of implement: fully-mounted, semi-

mounted or trailed

Always maintain the correct air pressure in the tyre

to carry the load. Do not over inflate tyres.

• Working speed

NOTE: Radial tyres will work with lower air pressures

• Tractor horsepower load

and will show up to 20% sidewall deflection or bulge

when correctly inflated.

• Type and size of tyres

Factors Affecting Tyre Performance

• Tyre pressures

• Correct air pressure for the load

Do not use more ballast than needed. Excess ballast

should be removed when it is not required.

• Correct sidewall deflection

IMPORTANT: Only sufficient weight should be

added to provide traction and stability. Adding more

• Correct wheel slip

weight than necessary results in unnecessary loads

being imposed on the tractor and a higher fuel

• Correct tyre size for expected load

consumption. When adding weight, adhere to the

maximum tyre capacity loading stated in the tables

• Correct fill of liquid ballast

commencing on page 3--144. If further information or

assistance is required on tractor weighting consult

• Maintaining equal tyre pressure in both tyres on

your authorised dealer.

a given axle

3--135

SECTION

-- FIELD OPERATION

Too little ballast:

For optimum performance and efficiency, two wheel

drive tractors should be ballasted so that

approximately one third of the total tractor weight

• Rough ride

(less implement) is on the front wheels. Four wheel

drive tractors should be ballasted so the weight on

• Excessive wheel slip

the front wheels is approximately 40 -- 45% of the

total tractor weight.

• Power loss

Add additional front end ballast, as required, for

• Tyre wear

stability during operation and transport. Ballasting of

the front end may not always provide adequate

• Excessive fuel consumption

stability if the tractor is operated at high speed on

rough terrain. Reduce tractor speed and exercise

• Lower productivity

caution under these conditions.

Too much ballast:

When using front mounted implements it may be

necessary to add weight to the rear wheels to

maintain traction and stability.

• Higher maintenance costs

BALLASTING WITH FRONT AXLE

• Increased driveline wear

SUSPENSION

• Power loss

IMPORTANT: On tractors fitted with front axle

suspension, correct ballasting is essential to

• Increased soil compaction

optimise suspension operation, particularly when

using heavy rear mounted equipment. For this

• Excessive fuel consumption

application, sufficient front ballast must be added by

the use of wafer weights in preference to liquid

• Lower productivity

ballast in the tyres

In certain conditions, with insufficient front weight

added, suspension operation may become disabled

For maximum performance in heavy draft conditions

and error code 10007 displayed. Stop the tractor,

weight should be added to the tractor in the form of

switch off the engine and restart again to clear the

liquid ballast, cast iron weights or a combination of

error code and re--enable the suspension. If the error

both.

code re--occurs, then further front weight should be

added ensuring maximum axle and vehicle weights

Front end ballast may be required for stability and

are not exceeded.

steering control when weight is transferred from the

front to the rear wheels as rear mounted implement

Ballast Limitations

is raised by the tractor 3-point linkage.

Ballast should be limited by the tyre capacity or

When a rear mounted implement is raised to the

tractor capacity. Each tyre has a recommended

transport position, the weight on the front wheels

carrying capacity which should not be exceeded,

should be at least 20% of total tractor weight.

(see pages 3--144 and 3--145 ).

CAUTION

If a greater amount of weight is needed for traction,

Additional front ballast may be needed when

larger tyres should be used.

transporting large

3-point mounted equipment.

Always drive slowly over rough terrain, no matter

Ballast can be added by bolting on cast iron weights

how much front ballast is used.

or by adding liquid calcium chloride in the tyres.

Bolt-on cast iron weights are recommended because

they can easily be removed when not needed.

3--136

SECTION 3 -- FIELD OPERATION

TRACTOR WEIGHT INFORMATION

Restricted Operation

Maximum Gross Vehicle Weight

IMPORTANT: For intermittent operation, the front

axle loading (including loaded loader bucket) may be

The maximum axle loads and vehicle weights will

increased (see Restricted Operation), provided

differ by model, depending on the type and

that the ground speed does not exceed 8 km/h (5

combination of front and rear axles fitted to the

MPH) and the front track width settings are

tractor.

maintained within the limits shown:

Maximum Axle Load

G.V.W.

2WD Models

Total

Maximum Front Axle Loading

Front (kg)#

Rear (kg)

(kg)

(Restricted Operation)*

2WD Models

2449

(LF)

6260

(LR)

7500

2449

(LF)

6500

(HR)

7500

Standard Axle

5000

11022

2994

(HF)

6260

(LR)

7500

T6010/T6020

Heavy Duty Axle

5000

11022

2994

(HF)

7000

(HR)

8100

1361

(WD)

6260

(LR)

7500

* Maximum track setting 1829 mm. (72.0 in.).

1361

(WD)

7000

(HR)

8100

2449

(LF)

6500

(HR)

7500

Maximum Front Axle Loading

T6030/T6050

2994

(HF)

7000

(HR)

8100

4WD

(Restricted Operation)

Class

1361

(WD)

7000

(HR)

8100

Track Setting

Axle

(LF) =

Light Duty front axle with six stud wheel

fixing at maximum 72” track setting.

T6010

6200

13668

1727 -- 2032

68 -- 80

(HF) = Heavy Duty front axle with eight stud

T6020

6200

13668

1727 -- 2032

68 -- 80

wheel fixing at maximum 72” track setting.

T6030

6200

13668

1727 -- 2032

68 -- 80

(WD) = Wide front axle with eight stud wheel

fixing.

T6050

6200

13668

1727 -- 2032

68 -- 80

T6070

6200

13668

1727 -- 2032

68 -- 80

Maximum Axle Load

G.V.W.

4WD Models

Total

Front (kg)#

Rear (kg)

(kg)

NOTE: Total axle weight is measured with only the

3600

6260

(LR)

7500

T6010/T6020

front or rear wheels on the scales inclusive of liquid

3600

7000

(HR)

8100

and cast iron ballast and with mounted equipment in

3600

7000

(HR)

8700

T6030/T6050

the raised position.

T6070

3600

7000

(HR)

8700

IMPORTANT: Do not exceed the tractor gross

vehicle weights shown. This can cause an overload

IMPORTANT: # Includes front mounted equipment

condition that may invalidate the warranty and may

or loader in the raised position but with no load in the

exceed the load rating of the tyres. The maximum

bucket.

recommended gross vehicle weight is the weight of

(LR) = Light Duty rear axle.

the tractor plus ballast plus any mounted equipment

(HR) = Heavy Duty rear axle.

such as sprayers, tanks etc. in the raised position.

(see page 3--138 for axle identification)

IMPORTANT: Braking regulations in some countries

may impose lower gross vehicle weight limits for road

transport than the figures quoted in the above tables.

3--137

SECTION 3 -- FIELD OPERATION

CAST IRON WEIGHTS

(where fitted)

Rear wheel weights

Up to three cast iron weights (1), may be added to

each rear wheel.

With flanged axle: 6 x 45 kg (6 x 99 lb.) permitting a

maximum of 270 kg (594 lb.) to be carried.

With bar axle: 6 x 65 kg (6 x 143 lb.) permitting a

maximum of 390 kg (860 lb.) to be carried.

IMPORTANT: It is not recommended to fit rear

wheel weights on tractors operating at speeds in

233

excess of 40 k/mh (25 MPH).

Front wheel weights

For two wheel drive front wheels, segmented, cast iron

wheel weights (1), are available as an accessory. The

set of four (two per wheel) provides a total front wheel

ballast weight of 78 kg (172 lb.).

234

Front end wafer weights

Front end wafer weights are available in sets as

described in the following text.

45 kg (99 lb.) wafer weights are available in sets of

10 and 18 which, together with the support

carrier and tow hook, weigh:

6 weights, including carrier

360 kg. (793 lb.)

and tow hook.

10 weights, including carrier

540 kg. (1190 lb.)

and tow hook.

235

18 weights, including carrier

900 kg. (1984 lb.)

and tow hook.

3--139

SECTION 3 -- FIELD OPERATION

The weights are clamped together by means of the

long through bolts (1) and (3) and secured to the

carrier by the clamp bolts (2).

The weights may be removed as a complete set with

the aid of suitable lifting gear. Loosen the clamp bolts

(2) and slide the clamp assembly sideways out of the

weight pack. With a lifting bar passed through the

central hole, the complete weight set may now be

lifted off the carrier.

Alternatively, the weights can be removed

individually after loosening the clamp bolts and

removing all four through bolts (1) and (3).

236

WARNING

The tractor must not be operated unless all four

through bolts and the clamp bolts are in position with

the bolts tightened to 169 Nm (125 lbf.ft.). Recheck

the bolt torques after 50 hours of operation.

A towing facility is built into the weight carrier.

However, if the weights are installed a tow pin (1), is

available that clamps onto the front of the weight

pack.

237

If the front weights and weight carrier are not

installed, a tow pin is available for bolting directly to

the front axle support.

238

3--140

SECTION 3 -- FIELD OPERATION

LIQUID BALLAST

IMPORTANT: It is not recommended to use liquid

The figures in the table will give a 75% fill of the tyre.

This calcium chloride/water solution will give

ballast on tractors operating at speeds in excess of

protection from freezing down to an ambient

40 Km/h (25MPH) asride qualitymay beadversely

temperature of --50°C (--58°F).

affected.

WARNING

Filling the front and rear tyres with liquid ballast is a

When mixing the ballast solution it is imperative the

convenient method of adding weight. A solution of

calcium chloride flakes are added to the water and

calcium chloride and water is recommended. This

the solution stirred until the calcium chloride is

gives a low freezing point and provides a higher

dissolved.

density than plain water.

Never add water to calcium chloride as considerable

heat is generated. If the flakes should contact the

IMPORTANT: In some countries it is illegal to use

eyes, wash the eyes immediately with clean, cold

calcium chloride as a ballast solution for tyres.

water for at least 5 minutes. Consult a doctor as soon

Ensure that you comply with the legal requirements

as possible.

of your country. Use cast iron weights as an

alternative to liquid ballast.

The following tables show the quantity of calcium

chloride and water required for each tyre size option

and is based on 0.6 kg of calcium chloride per litre of

water.

Front Tyre Ballast

Tyre Size

Water

Calcium

Total Weight

Water

Calcium

Total Weight

Chloride

of solution

Chloride

of solution

per tyre

Litres

kg.

gallons

lb.

11.4 -- 24

123

102

273

12.4R -- 24

150

124

331

13.6R -- 24

123

196

162

433

14.9R -- 24

151

241

176

471

13.6R -- 28

119

190

157

417

14.9R -- 28

170

102

272

224

599

16.9R -- 28

219

131

350

290

774

14.9R -- 30

174

104

278

46.0

231

616

380/70R -- 24

117

187

155

414

420/70R -- 24

149

238

197

526

380/70R -- 28

144

230

190

508

420/70R -- 28

166

265

219

585

440/65R -- 28

167

100

267

220

588

480/65R -- 28

200

120

320

264

705

480/70R -- 28

222

133

355

294

785

520/60R -- 28

210

126

336

278

742

540/65R -- 28

251

150

401

332

886

320/85R -- 34

107

171

142

379

NOTE: Liquid ballasting of front tyres on a two wheel drive installation is not recommended.

3--141

SECTION 3 -- FIELD OPERATION

Rear Tyre Ballast

Tyre Size

Water

Calcium

Total Weight

Water

Calcium

Total Weight

Chloride

of solution

Chloride

of solution

per tyre

Litres

kg.

gallons

lb.

18.4R --

286

171

457

377

1007

12.4

123

196

163

436

16.9R --

270

162

432

357

952

18.4R --

292

175

467

386

1031

13.6R --

176

105

281

233

622

16.9R --

275

165

440

364

972

18.4R --

312

187

499

413

1102

20.8R --

429

257

686

113

567

1513

18.4R --

352

211

563

465

1241

14.9R --

245

147

392

324

865

480/70R --

248

148

396

328

875

520/70R --

307

184

491

406

1083

480/70R --

270

162

432

357

954

520/70R --

318

190

508

420

1121

540/65R --

316

189

505

418

1115

600/60R --

365

219

584

483

1289

600/65R --

419

257

670

111

554

1479

650/60R --

436

261

697

115

576

1538

650/65R --

510

306

816

135

674

1800

320/90R --

153

244

202

539

IMPORTANT: Only sufficient weight should be

WARNING

added to provide traction and stability. Adding more

Tractor wheels are very heavy. Handle with care and

weight than necessary results in unnecessary loads

ensure, when stored, that they cannot fall and cause

being imposed on the tractor and a higher fuel

injury.

consumption. When adding weight, adhere to the

Never operate the tractor with a loose wheel rim or

maximum tyre capacity loading stated in the tables

disc. Always tighten nuts to the specified torque and

commencing on page 3--144. If further information or

at the recommended intervals.

assistance is required on tractor weighting consult

your authorised dealer.

3--142

SECTION 3 -- FIELD OPERATION

TYRE CARE

Upon receiving your tractor, check the air pressure

•

After seating the beads, adjust inflation pressure

in the tyres and recheck every 50 hours or weekly.

to the recommended operating pressure.

When checking tyre pressures, inspect the tyres for

•

Do not re-inflate a tyre that has been run flat or

damaged tread and side walls.

seriously under-inflated until it has been

inspected for damage by a qualified person.

Inflation pressure affects the amount of weight that

a tyre may carry.

•

Torque wheel to axle nuts to specification after

re-installing the wheel. Check nut tightness daily

until torque stabilises.

See the Tyre Pressure and Load tables, pages 3--144

and 3--145. Do not exceed the load for the pressures

listed. Do not over or under inflate the tyres. If the tyre

•

Refer to tractor weighting section before adding

fitted to your tractor is not listed, consult your

ballast to the tyres.

authorised dealer for pressure and load information.

•

Ensure the jack is placed on a firm, level surface.

WARNING

Inflating or servicing tyres can be dangerous.

•

Ensure the jack has adequate capacity to lift your

Whenever possible, trained personnel should be

tractor.

called in to service or install tyres. In any event, to

avoid the possibility of serious or fatal injury, follow

•

Use jack stands or other suitable blocking to

the safety precautions below:

support the tractor while repairing tyres.

•

Do not put any part of your body under the tractor

• Never attempt tyre repairs on a public road or

or start the engine while the tractor is on the jack.

highway.

•

Never hit a tyre or rim with a hammer.

• Do not inflate a steering tyre (front tyre on a two

wheel drive tractor) above the manufacturer’s

•

Ensure the rim is clean and free of rust or

maximum pressure shown on the tyre or beyond

damage. Do not weld, braze, otherwise repair or

the maximum recommended by your authorised

use a damaged rim.

dealer or tyre supplier.

•

Do not inflate a tyre unless the rim is mounted on

• Never inflate a traction tyre (front tyre on a four

the tractor or is secured so that it will not move

wheel drive tractor or any rear tyre) over 2.8 bar

if the tyre or rim should suddenly fail.

(40 lbf/in²). If the bead does not seat on the rim

by the time this pressure is reached, deflate the

•

When fitting a new or repaired tyre, use a clip-on

tyre, relubricate the bead with a soap/water

valve adaptor with a remote gauge that allows

solution and re-inflate. Do not use oil or grease.

the operator to stand clear of the tyre while

Inflation beyond 2.8 bar with unseated beads

inflating it. Use a safety cage, if available.

may break the bead or rim with explosive force

sufficient to cause a serious injury.

3--143

SECTION 3 -- FIELD OPERATION

TYRE PRESSURES AND PERMISSIBLE LOADS

Radial tyre performance is denoted by a Load Index

138

and Speed Symbol replacing the Ply Rating

141 A8

commonly found on cross ply tyres. Figure

239

shows typical markings to be found on the side wall

of radial ply tyres.

MAX LOAD AT 40 KM/H

NOTE: Radial tyres will have a speed symbol of ‘A8’

2575 KGS AT 1.6 BAR

and/or ’B’which identifies the maximum speed rating

for that tyre. Tyres marked with the A8 symbol are

REPLACES 10 P.R.

suitable for speeds up to 40km/h (25 MPH), those

marked with a ’B’ symbol may be operated at speeds

up to 50k/mh (31 MPH).

239

The maximum load that may be carried by the tyre is

Load Index

dependent upon the Load Index shown on the side

Speed Symbol for 40 km/h (25 MPH)

Speed Symbol for 50 km/h (31 MPH)

wall. In the following charts the loads given are for

Maximum load/inflation pressure at

individual tyres operated at speeds up to 40 or 50 km/h

40 km/h (25MPH)

(25 or 31 MPH). The two right--hand columns indicate

Old ply rating mark

the maximum permissible load per tyre at speeds of

40 or 50 km/h (25 or 31 MPH).

WARNING

When operating at high road speeds, tyre pressures

and maximum load capacities advised by the tyre

manufacturer should be strictly adhered to. Consult

your authorised dealer or tyre supplier for the correct

pressures and loads for the tyres fitted to your

tractor.

Tyre Load

Inflation Pressure -- bar

Capacity @

Tyre

Load

1.0

1.2

1.4

1.6

1.8

2.0

2.2

2.4

2.6

2.8

Size

Index

Load Capacity per TYRE (kg) @ 30k/mh

k/mh

125A8

1295

1415

1530

1650

380/70 R24

122B

1295

1415

1530

1650

123A8

1170

1275

1320

1400

13.6R--28

120B

1285

1400

1450

1550

142A8

1930

2095

2275

2430

18.4R--30

139B

2120

2300

2500

2650

145A8

2300

2500

2700

2900

480/70 R38

145B

2300

2500

2700

2900

153A8

2210

2410

2460

2865

3140

3350

20.8R--38

150B

2430

2650

2900

3150

3450

3650

148A8

2300

2725

2900

3150

18.4R--42

148B

1800

2120

2300

2725

2900

3150

IMPORTANT: The above table provides an example of the maximum load limitations that occur at various tyre

pressures on a representative range of rear tyre sizes available for your tractor. These figures are per tyre and

should be used for guidance only. For exact information regarding inflation pressures and loads for your particular

tyres, consult your authorised dealer.

3--144

SECTION 3 -- FIELD OPERATION

Tyre Load

Inflation Pressure -- lbf/in²

Capacity @

Tyre

Load

Size

Index

Load Capacity per TYRE (lbs.) @ 18.6 MPH

MPH

125A8

2854

3119

3373

3637

380/70 R24

122B

2854

3119

3373

3637

123A8

2579

2810

2910

3086

13.6R--28

120B

2832

3086

3196

3417

142A8

4255

4618

5015

5357

18.4R--30

139B

4673

5070

5511

5842

145A8

5070

5511

5952

6393

480/70 R38

145B

5070

5511

5952

6393

153A8

4872

5313

5423

6316

6922

7385

20.8R--38

150B

5357

5842

6393

6944

7605

8046

148A8

5070

6007

6393

6944

18.4R--42

148B

3968

4673

5070

6007

6393

6944

IMPORTANT: The above table provides an example of the maximum load limitations that occur at various tyre

pressures on a representative range of rear tyre sizes available for your tractor. These figures are per tyre and

should be used for guidance only. For exact information regarding inflation pressures and loads for your particular

tyres, consult your authorised dealer.

SYMBOL MARKED RADIAL TYRES

(North America Only)

Conventional sized radial agricultural tractor drive

tyres are marked with *, **,or *** symbols. The

maximum load rating for tyres marked with a * is

calculated at 18 psi inflation pressure. Tyres marked

with ** or *** have maximum load carrying capacities

at pressures of 24 psi and 30 psi respectively.

For information regarding specific inflation pressures

and load carrying capacities for the tyres fitted to

your tractor, consult your authorised dealer.

240

1. Load symbol

2. Maximum recommended load at marked pressure

3. Maximum load at 20 MPH

4. Previous ply ratings

3--145

SECTION 4

LUBRICATION AND MAINTENANCE

GENERAL INFORMATION

SAFETY PRECAUTIONS

INTRODUCTION

Read and observe all safety precautions listed in

‘Servicing the Tractor’ in the Introduction section at

the front of this Manual.

Section 4 provides the step by step requirements

necessary to maintain your new tractor in peak

condition. A lubrication and maintenance chart on

NOTE: Dispose of used filters and fluids properly.

page 4--7 provides a ready reference to these

requirements. If in doubt about any aspect of

CAUTION

lubrication and maintenance, consult your dealer.

Do not check, lubricate, service or make adjustments

to the tractor with the engine running.

CONTENTS

The subjects covered in this section are as listed

below. A full index is provided at the back of the book.

Subject

Page

DURING THE FIRST 50 HOURS OPERATION

General Information

4--1

In addition to the regular maintenance operations

First 50--hour service

4--2

listed, check the following items every 10 hours or

Fuelling

4--3

daily during the first 50 hours of operation of your

Guard Removal

4--5

new tractor:

Lubricants and Coolants

4--8

• Check transmission/rear axle/hydraulics oil level

Lubrication and Maintenance Chart

4--10

Servicing when warning lights illuminate

4--11

• Wheel nuts for tightness

10--hour/daily service

4--15

50--hour service

4--17

• Front axle hub oil levels (four wheel drive)

100--hour service

4--26

300--hour service

4--27

CHECKING OIL LEVELS

600--hour service

4--31

IMPORTANT: Park the tractor on level ground and,

1200--hour/12 month service

4--38

where applicable, extend all cylinders before

1200--hour/24 month service

4--43

checking oil levels. With some front/rear wheel

1800--hour service

4--50

combinations, it may be necessary to raise the front

Every 3 years

4--51

or rear of the tractor to ensure it is level before

checking the oil.

General Maintenance -- as required

4--52

4--1

SECTION 4 -- LUBRICATION AND MAINTENANCE

THE FIRST 50 HOUR SERVICE

At the first 50-hour service, ensure that the following

additional service operations are carried out. The

items are listed in the

‘First

50-Hour Service’

checklist in Section 9.

• Check engine oil level

• Change hydraulic oil filters (all models)*

• Check transmission/rear axle/hydraulics oil level

• Check FWD differential oil level

• Check FWD axle hub oil level

• Check and adjust parking brake

• Check all engine air intake connections

• Check torque of exhaust manifold bolts

• Inspect Poly V-belt

• Check and adjust compressor drive belt tension

(air operated trailer brakes--where fitted)

• Tighten all cooling system hose connections

• Check torque of safety cab or frame mounting

bolts

• Check torque of front end weight clamp bolts

(where fitted)

NOTE: Items listed in the first 50-hour check are

important. If not performed, early component failure

and reduced tractor life may result.

*Tractors with Variable Displacement Hydraulic

Pump only

IMPORTANT: At the First 50 Hour service the

hydraulic filter (2) MUST be changed for the larger

capacity service repacement filter. Do NOT replace

with one of the same size as this may reduce

hydraulic system performance.

Filter Dimensions

Length Diameter

Original (factory fit)

204mm

94.3mm

Service replacement filter

254mm

116.8mm

241

4--2

New Holland T6010, T6020, T6030, T6050, T6070 Delta and Plus Tractors. Operator's Manual - page 7