https://www.truck-manuals.net/mack/ 246 MAINTENANCE AND LUBRICATION
CAUTION Never bleed air from your tires in an attempt to gain traction for a vehicle stuck in snow, ice or mud. This practice provides no additional traction and typically results in underinflated tires. Never bleed air from a hot tire since that tire will then be underinflated.
To adjust for pressure fluctuations induced by temperature changes associated with winter weather, it is recommended that tire inflation pressure be checked daily when the tires are cold (i.e., before the vehicle is driven). Always use an accurate tire pressure gauge. Inspection Inspect your tires daily. Look for bulges, cracks, cuts, penetrations and/or oil contamination. If any such damage is found, the tire must be thoroughly inspected by a qualified tire inspector and repaired or discarded immediately, at his discretion. Also, check for uneven wear. If found, a thorough inspection of front end parts and alignment should be made by a qualified mechanic. Refer to the Maintenance and Lubrication Manual for more information. Tire Manufacturer’s Data Book Specific and more detailed information can be obtained by referring to the technical data books provided by each tire manufacturer.
CAUTION For important tire information (i.e., high speed limits, inflation pressures, etc.), consult the product information available through the specific tire manufacturer.
Oil Contamination of Tires Lubricating oils, fuel oil, gasoline and other petroleum derivatives, if allowed to contact tires, will soften the rubber and destroy the tire. Preventive maintenance is necessary to ensure that oil leakage does not occur. The following areas should be inspected on a regular basis: • Axle end seals • Engine seals
