Commercial Truck Trailer High Tire Pressure Gauge w/ Deflator for

Range: 150PSI Accuracy:  ANSI B 40.1 Grade B 20% underinflation can reduce tire life 30% 30% underinflation can reduce tire life 40% 40% underinflation can reduce tire life 50%
1. DETERMINE ACTUAL TIRE LOADS.

Weigh several tractor/trailer vehicle combinations that best represent actual maximum load conditions for these vehicles while in operation.

Determine average weights per axle of these weights and divide that value by the number of tires on that axle to determine actual tire loading.

2.DETERMINE MINIMUM COLD INFLATION PRESSURES FOR EACH TIRE PER AXLE.

Use the actual load per tire (per axle) to determine the cold inflation pressures for the tires by size, ply, and type.

The actual tire load should be compared to the tire load limits on the chart for the particular tire size and ply rating.

The corresponding recommended cold inflation pressure is indicated for the load in the chart heading.

If the actual tire loads are heavier than the ply rating of the applied tire, it may be necessary to install a tire with a higher ply rating.

3.USE THE DETERMINED INFLATION PRESSURES AS MINIMUM INFLATION VALUES TO SET UP THE VEHICLE FOR IMPROVED HANDLING.

In all cases, the determined inflation pressures based on actual load conditions should be considered minimum pressures.

Operational air pressures can be set higher, but under no circumstances should they be set lower.

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