New Holland Workmaster 25 Tier 4B, Operator'S Manual

Page: 139 / 198

7 - MAINTENANCE
Tire pressure - Check
WARNING
Explosion hazard!
Always maintain correct tire pressure as indicated in this manual. DO NOT inflate tires above the
recommended pressure. Excessive pressure could result in tire failure.
Failure to comply could result in death or serious injury.
W0109A
Tire inflation pressure affects the amount of weight a tire can carry. Check the air pressure in your tractor tires and
adjust the tire pressure, being careful not to overinflate or under inflate. Observe the following guidelines:
• Do not inflate a tire above the maximum pressure shown on the tire. If the tire is not marked, do not exceed the
maximum pressure shown in the Tire Inflation chart found in this manual.
• Do not reinflate a tire that has been run flat or seriously under inflated until the tire has been inspected for
damage by a qualified person.
• When checking tire pressure, inspect the tire for damaged sidewalls and tread cuts. Neglected damage leads to
early tire failure.
If you must inflate or service tires, follow these safety precautions to avoid injury or fatality:
• Make sure the rim is clean and free of rust.
• Lubricate both tire beads and rim flanges with soap solution. Do not use oil or grease.
• Use a clip-on tire chuck with a remote hose and gauge. This allows the operator to stand clear of the tire
while inflating.
• NEVER INFLATE TO OVER
241 kPa ( 35 psi ) TO SEAT BEADS. If beads have not been seated by the time
pressure reaches 241 kPa ( 35 psi ), deflate the assembly, reposition the tire on the rim, relubricate both tire bead
and rim flanges, and reinflate. Inflation beyond 241 kPa ( 35 psi ) with unseated beads may break the bead or rim
with explosive force sufficient enough to cause serious injury.
• After seating the beads, adjust inflation pressure to recommended operating pressure.
• Do not inflate a tire unless the rim is mounted on the tractor or is secured so that it will not move if the tire or
rim should suddenly fail.
• Do not weld, braze, otherwise repair, or use a damaged rim.
• Never attempt tire repairs on a public road or highway.
• Use jack stands or other suitable blocking to support the tractor while repairing tires.
• Ensure jack has adequate capacity to lift your tractor.
• Place jack on a firm, level surface.
• Do not place any part of your body beneath the tractor or start the engine while the tractor is on the jack.
• Before adding ballast to the tires, refer to page
6-1 for tire and tractor ballasting information.
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