John Deere z425 - Manual (Page 40)

Service Miscellaneous - 39
SERVICE MISCELLANEOUS
immediately after fuel purchase. Such practice helps prevent engine
performance problems and allows fuel storage in the machine all year
without draining.
Filling Fuel Tank
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.
Checking Tire Pressure
1. Check tires for damage.
NOTE: Refer to the SPECIFICATIONS section for tire pressures.
2. Check tire pressure with an accurate gauge.
3. Add or remove air, if necessary.
Removing and Installing Wheel Assembly
Removing
1. Park machine safely. (See Parking Safely in the Safety section.)
2. Raise machine with a safe lifting device and lower machine onto jack
stands or other stable supports. Block wheels remaining on the ground to
prevent machine movement.
MX23115a
3. Remove the wheel nuts (A).
4. Remove the wheel assembly.
5. Take wheel assembly to an authorized service dealer for repairs.
Installing
1. Install wheel assembly with valve stem to the outside.
2. Tighten wheel nuts evenly in alternating sequence until snug.
3. Lower machine completely to the ground.
4. Tighten wheel nuts to 102 N•m (75 lb-ft).
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
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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.
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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.
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CAUTION: Avoid injury! The machine can fall or slip from
an unsafe lifting device or supports.
• Use a safe lifting device rated for the load to be lifted.
• Lower machine onto jack stands or other stable supports and
block wheels before servicing.
IMPORTANT: Avoid damage! Place jack stands under frame, not
under transmission or engine, when raising or supporting
machine.
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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.
A
A