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Service Miscellaneous


Using Proper Fuel (Diesel)

Use the proper diesel fuel to help prevent decreased engine performance and increased exhaust emissions. Failure to follow the fuel requirements listed below can void your engine warranty.

Contact your local fuel distributor for properties of the diesel fuel in your area.

In general, diesel fuels are blended to satisfy the low temperature requirements of the geographical area in which they are marketed.

Diesel fuels specified to EN 590 or ASTM D975 are recommended.

Required fuel properties

In all cases, the fuel shall meet the following properties:

Cetane number of 45 minimum. Cetane number greater than 50 is preferred, especially when temperatures are below -20?C (-4?F) or elevations above 1500 m (5000 ft).
Cold Filter Plugging Point (CFPP) below the expected low temperature OR Cloud Point at least 5?C (9?F) below the expected low temperature.
Fuel lubricity should pass a minimum load level of 3100 grams as measured by ASTM D6078 or maximum scar diameter of 0.45 mm as measured by ASTM D6079 or ISO 12156-1.

If a fuel of low or unknown lubricity is used, addition of John Deere PREMIUM DIESEL FUEL CONDITIONER at the specified concentration is recommended.

Sulfur content

• Diesel fuel quality and fuel sulfur content must comply with all existing emissions regulations for the area in which the engine operates.

• Sulfur content less that 0.05% (500 ppm) is recommended for best performance.

• Diesel fuel sulfur content greater than 0.5% (5000 ppm) should not be used.

IMPORTANT: Avoid damage! Do not mix diesel engine oil or any other type of lubricating oil with diesel fuel.


Using Bio-Diesel Fuel

Bio-diesel fuels may be used only if the bio-diesel fuel properties meet the latest edition of ASTM D6751, EN14214, or equivalent specification.

The maximum allowable bio-diesel concentration is a 5% blend (also known as B5) in petroleum diesel fuel.

Consult your local fuel distributor for properties of the bio-diesel fuel available in your area.

Handling and Storing Diesel Fuel

c CAUTION: Avoid injury! Handle fuel carefully. Do not fill the fuel tank when engine is running.

Do not smoke while you fill the fuel tank or service the fuel system.

IMPORTANT: Avoid damage! Do not use galvanized containers—diesel fuel stored in galvanized containers reacts with zinc coating in the container to form zinc flakes. If fuel contains water, a zinc gel will also form. The gel and flakes will quickly plug fuel filters and damage fuel injectors and fuel pumps.


• Fill the fuel tank at the end of each day’s operation to prevent water condensation and freezing during cold weather.

IMPORTANT: Avoid damage! The fuel tank is vented through the filler cap. If a new cap is required, always replace it with an original vented cap.


• When fuel is stored for an extended period or if there is a slow turnover of fuel, add a fuel conditioner to stabilize the fuel and to prevent water condensation. Contact your fuel supplier for recommendations.

Filling Fuel Tank

c CAUTION: Avoid injury! Fuel vapors are explosive and flammable:

• Shut engine off before filling fuel tank.

• Do not smoke while handling fuel.

• Keep fuel away from flames or sparks.

• Fill fuel tank outdoors or in well ventilated area.

• Clean up spilled fuel immediately.

• Use clean approved non-metal container to prevent static electric discharge.

• Use clean approved plastic funnel without screen or filter to prevent static electric discharge.

IMPORTANT: Avoid damage! Dirt and water in fuel can cause engine damage:

• Clean dirt and debris from the fuel tank opening.

• Use clean, fresh, stabilized fuel.

• Fill the fuel tank at the end of each day’s operation to keep condensation out of the fuel tank.

• Use a non-metallic funnel with a plastic mesh strainer when filling the fuel tank or container.


Fill fuel tank at the end of each day’s operation to prevent condensation and freezing during cold weather.

1. Park machine safely. (See Parking Safely in the SAFETY section.)

2. Allow engine to cool.

3. Remove any trash from area around fuel tank cap.

4. Remove fuel tank cap slowly to allow any pressure built up in tank to escape.

5. Fill fuel tank only to bottom of filler neck.

6. Install fuel tank cap.

Raising and Lowering Hood

Raising

1. Park machine safely. (See Parking Safely in the SAFETY section.)


MX20948

2. Lift either hood release lever (A).

3. Raise hood (B), and raise support rod (C) to secure into bracket hole (D).

Lowering

1. Lift hood slightly to remove weight from support rod (C).

2. Release support rod from bracket hole (D), and lower support rod to latch on machine frame.

3. Slowly lower hood.

4. Push down on front of hood to lock the latch.

Servicing Air Conditioner

Air Conditioner Checks

Check the following if air conditioner will not cool, or if cooling is intermittent:

c CAUTION: Avoid injury! Refrigerant under pressure. Improper servicing may cause refrigerant to penetrate eyes and skin or cause burns.

IMPORTANT: Avoid damage! R134a refrigerant must be used. This requires special equipment and procedures. See your John Deere dealer.


NOTE: Some oil seepage from compressor shaft seal, on the lower front, is normal.

1. If air conditioner clutch slips after tractor has been in storage, compressor may be stuck.

• Stop engine and turn ignition switch to stop (off) position.

• Raise hood and rotate clutch hub back and forth to free compressor.


MX22964

2. Run engine at 2000 rpm. Push top half of A/C and defrost switch (A) and set blower control knob (B) to high position (C). If cooling is intermittent, clean hood grille, radiator and condenser. If problem is not solved, see your John Deere dealer.

3. Inspect operator enclosure (cab) filter for restriction. If problem persists, see your John Deere dealer to have evaporator core cleaned.

Cleaning Air Conditioner Condenser

c CAUTION: Avoid injury! Compressed air can cause debris to fly a long distance.

• Clear work area of bystanders.

• Wear eye protection when using compressed air for cleaning purposes.

• Reduce compressed air pressure to 210 kPa (30 psi).


MX35851

1. Raise hood, remove screen (A), and check air conditioner condenser (B) for dirt and debris. Clean condenser using a brush or compressed air.

2. If a more thorough cleaning is necessary, clean radiator from behind with compressed air or water. Straighten any bent fins.

Cleaning Cab Air Filter

IMPORTANT: Avoid damage! Remove any rear implement before servicing cab air filter. Do not stand on 3-point hitch, drawbar hitch or PTO shield.



MX35881

1. Remove two wing bolts (A), washers, and filter base (B).


MX35868

2. Remove filter (C) from filter base, and clean with compressed air. Inspect filter for damage. Replace if necessary.

3. Install filter back into filter base.


MX35882

4. Install filter base, making sure six tabs (D) on roof panel are installed into slots (E) in filter base. Secure base assembly back into roof panel with two washers and wing bolts.

Checking Cab Rollover Protection System Installation

c CAUTION: Avoid injury! To maintain operator protection and ROPS certification:

• Do not repair or revise the ROPS.

• Any alteration of the ROPS must be approved by the manufacturer.

IMPORTANT: Avoid damage! Make certain all parts are installed correctly. If cab protection system is loosened or removed for any reason, tighten mounting capscrews to specification.

The protection offered by cab protection system will be impaired if cab protection system is subjected to structural damage, as in an overturn incident, or is in any way altered by welding, bending, drilling, or cutting. A damaged cab protection system should be replaced, not reused. Any alteration to the cab protection system must be approved by the manufacturer.


1. When installation of equipment on a machine necessitates loosening or removing cab protection system, mounting capscrews should be tightened to specification.

2. Inspect cab protection system mounting hardware every 50 hours for proper torque or replacement.


MX35851

3. Lift up rubber floor mat (A) to access FRONT mounting hardware.


MX35533

4. Remove fastener and pull insulation liner away from fender to access REAR mounting hardware (B).

5. Tuck the insulation liner under the fender panels when complete.

6. Tighten the mounting hardware to 260 N•m (192 lb-ft).

Checking Wheel Bolts and Hardware

c CAUTION: Avoid injury! Check rim, hub, and axle hardware periodically to prevent possible machine roll-over.

When machine is new or anytime wheel hardware is loosened, tighten all bolts after one hour of operation and every four hours thereafter until proper torque values are maintained.

Tightness of wheel hardware must be maintained according to service interval recommendations. Check wheel bolt tightness as follows:

Front Wheel Bolts

Tighten front wheel bolts alternately to 140 N•m (103 lb-ft).

Rear Wheel Bolts

Tighten rear wheel bolts alternately to 140 N•m (103 lb-ft).

Removing and Installing Wheels

c CAUTION: Avoid injury! Remove wheels safely.

• Use a safe lifting device and support machine securely on jack stands.

• Block front and rear of wheel not raised to prevent machine movement.

• Wheel can be heavy or difficult to handle when removing.

Front Wheel Removal

1. Loosen lug nuts slightly before raising front axle.

2. Raise front of machine and lower onto support stands so that machine is supported by front axle.

3. Remove lug bolts and wheel.

NOTE: If the front wheels are being removed to perform work on the front axles, lower machine onto suitable stands that will support the machine by the frame.

Front Wheel Installation

1. Install wheels onto axle, insert lug bolts and lightly tighten bolts.

2. Raise front of machine, remove support stands and lower machine to floor.

3. Tighten lug bolts to 140 N•m (103 lb-ft).

Rear Wheel Removal

1. Loosen lug bolts slightly before raising machine rear axle.

2. Raise rear of machine and lower onto support stands so that machine is supported by rear axle.

3. Remove lug bolts and wheel.

Rear Wheel Installation:

1. Install wheels onto axle, insert lug bolts and lightly tighten bolts.

2. Raise rear of machine, remove support stands and lower machine to floor.

3. Tighten lug bolts to 140 N•m (103 lb-ft).

Checking Tire Pressure

c CAUTION: Avoid injury! Explosive separation of tire and rim parts is possible when they are serviced incorrectly:

• Do not attempt to mount a tire without the proper equipment and experience to perform the job.

• Do not inflate the tires above the recommended pressure.

• Do not weld or heat a wheel and tire assembly. Heat can cause an increase in air pressure resulting in an explosion. Welding can structurally weaken or deform the wheel.

• Do not stand in front or over the tire assembly when inflating. Use a clip-on chuck and extension hose long enough to allow you to stand to one side.

1. Check tires for damage.

2. See tire pressures in SPECIFICATIONS.

3. Check tire pressure with an accurate gauge.

4. Add or remove air, if necessary

Selecting Front Tire Rolling Direction

c CAUTION: Avoid injury! Remove wheels safely.

• Use a safe lifting device and support machine securely on jack stands.

• Block front and rear of wheel not raised to prevent machine movement.

• Wheel can be heavy or difficult to handle when removing.

Machines equipped with directional type tires (such as bar tires) have directional arrows located on the tire sidewall. Under most conditions, tires should be installed with the directional arrow pointing in the direction of travel.

If machine is mainly used for loader operations, lug direction may be reversed to increase tire life and improve traction while backing out of dirt piles.

Move wheel from one side of machine to the other to change tire rolling direction.

Changing Wheel Spacing and Tread Width

The front and rear wheels can be mounted in wide or narrow positions to increase or decrease wheel spacing. To provide best stability, operate machine with rear wheels mounted in the wide tread position whenever possible.

c CAUTION: Avoid injury! Remove wheels safely.

• Use a safe lifting device and support machine securely on jack stands.

• Block front and rear of wheel not raised to prevent machine movement.

• Wheel can be heavy or difficult to handle when removing.

IMPORTANT: Avoid damage! Always make sure tires rotate in proper direction. Arrows on sidewall should point in direction of forward rotation.


Front Wheel Positions:

• Wide position - Install wheel with valve stem to the inside.

• Narrow position - Install wheel with valve stem to the outside.

Rear Wheel Positions:

• Wide position - Install wheel with valve stem to the inside.

• Narrow position - Install wheel with valve stem to the outside.

For 8 position wheels, the mounting flanges on the rear rims are closer to one edge of the rim than the other, allowing the inner wheels to be mounted in different positions. By changing this position of the wheel on the rim, up to eight different tread widths can be achieved on some machines.

Various positions cannot be used because the tires would strike the fenders. Certain other positions may result in equal tread widths.

Tread width is measured from centerline-to-centerline of each tire.

Mounting Guidelines

• To keep tire rotation in the proper direction when wheels are reversed without removing tires from rims, move each wheel to the opposite side of the machine.

• Rims can be attached to either side of wheel.

• Mounting flanges on rim are closer to one edge of rim.

• Tread width can be changed by turning the wider side in or out.

• To keep tire rotation in the proper direction, move each rim to opposite side of machine, rather than turning the rims around.

• Dished wheels can be reversed.

• Tighten all bolts to specifications.

Rear Tire Tread Width Dimensions

Rear Tire Size

Position

22.5LL-16.1 6PR GOLF GA

44x18.00-20 4PR R3 TI

1 (Narrow)

1.5 m (59 in.)

1.4 m (55 in.)*

2

1.6 m (64 in.)

1.7 m (67 in.)

3

N/A

N/A

4

N/A

N/A

5

N/A

N/A

6

N/A

N/A

7

N/A

N/A

8 (Wide)

N/A

N/A


Rear Tire Size

Position

17.5L-24 8PR R4 TI

13.6-28 4PR R1 TI

1 (Narrow)

N/A

N/A

2

1.3 m (51 in.)

1.3 m (51 in.)*

3

1.4 m (55 in.)

1.4 m (55 in.)

4

1.5 m (59 in.)

1.5 m (59 in.)

5

1.6 m (63 in.)

1.6 m (63 in.)

6

1.7 m (67 in.)

1.7 m (67 in.)

7

1.8 m (71 in.)

1.8 m (71 in.)

8 (Wide)

1.9 m (75 in.)

1.9 m (75 in.)


Front Tire Tread Width Dimensions

Front Tire Size

Position

27x12LL-15 6PR GOLF GA

27x10.5-15 4PR R3

(Narrow)

1.4 m (53 in.)

1.4 m (53 in.)

(Wide)

1.5 m (58 in.)

1.4 m (57 in.)


Front Tire Size

Position

10.00-16.5 6PR R4 TI

8.00-16 6PR R1 TI

(Narrow)

1.4 m (53 in.)

1.4 m (54 in.)

(Wide)

1.4 m (57 in.)

1.4 m (55 in.)


* Do not install tires with chains in this position.

NOTE: Do not install tire chains on 13.6-28 R1 tires installed on tractor models 4120-4720 with a cab.

Checking and Adjusting Toe-In

1. Stop machine on a firm, level surface.

2. Disengage MFWD if equipped.

3. Turn steering wheel so front wheels are pointing straight ahead.

4. Park machine safely. (See Parking Safely in the SAFETY section.)

Checking Toe-In

NOTE: If front axle is equipped with bar tires, use an outside bar of each tire or an inside bar of each tire for marking the center line.

1. Mark the center line of each tire at hub height and to the front of the axle using chalk.


MX22981

2. Measure and record distance (A) between the center lines of each tire.

3. Drive machine forward or rearward slightly until chalk mark moves 180? to the rear of the axle.

4. Park machine safely. (See Parking Safely in the SAFETY section.)

5. Measure and record distance (A) again between the chalk marks.

6. Determine the difference between front and rear measurements. Distance (A) may be larger at front or rear measurement but should not exceed 3 mm (1/8 in.). Adjust toe-in if necessary.

Adjusting Toe-In


MX10743

1. Loosen jam nuts (A) on both tie rods.

2. Rotate tie rods (B) clockwise or counterclockwise to adjust the amount of toe-in. Adjust tie rods until toe-in measurement is within correct specification.

• Rotating threaded rod in 1/2 turn increments equals 1.5 mm (1/16 in.).

3. Tighten jam nuts to 120 N•m (88 lb-ft).

4. Check toe-in setting. Repeat procedure if further adjustment is required.

Cleaning Plastic Surfaces

IMPORTANT: Avoid damage! Improper care of machine plastic surfaces can damage that surface:

• Do not wipe plastic surfaces when they are dry. Dry wiping will result in minor surface scratches.

• Use a soft, clean cloth (bath towel, diaper, automotive mitt).

• Do not use abrasive materials, such as polishing compounds, on plastic surfaces.

• Do not spray insect repellent near machine.


1. Rinse hood and entire machine with clean water to remove dirt and dust that may scratch the surface.

2. Wash surface with clean water and a mild liquid automotive washing soap.

3. Dry thoroughly to avoid water spots.

4. Wax the surface with a liquid automotive wax. Use products that specifically say “contains no abrasives.”

IMPORTANT: Avoid damage! Do not use a power buffer to remove wax.


5. Buff applied wax by hand using a clean, soft cloth.

Cleaning and Repairing Metal Surfaces

Cleaning:

Follow automotive practices to care for your vehicle painted metal surfaces. Use a high-quality automotive wax regularly to maintain the factory look of your vehicle’s painted surfaces.

Repairing Minor Scratches (surface scratch):

1. Clean area to be repaired thoroughly.

IMPORTANT: Avoid damage! Do not use rubbing compound on painted surfaces.


2. Use automotive polishing compound to remove surface scratches.

3. Apply wax to entire surface.

Repairing Deep Scratches (bare metal or primer showing):

1. Clean area to be repaired with rubbing alcohol or mineral spirits.

2. Use paint stick with factory-matched colors available from your authorized dealer to fill scratches. Follow directions included on paint stick for use and for drying.

3. Smooth out surface using an automotive polishing compound. Do not use power buffer.

4. Apply wax to surface.