Tractor Tire Pressure Adjustment
Maintaining the right tractor tire pressure for your load, speed and operating conditions can support traction, soil protection and tire performance. But when your tractor regularly moves between the field and the road, adjusting tire pressure manually can take additional time and effort.
A Central Tire Inflation System (CTIS) allows operators to adjust tire pressure from the tractor cab. Learn how CTIS works, how it compares with manual tire pressure adjustment, and what to consider when deciding whether CTIS is right for your operation.
The right tractor tire pressure depends on factors such as tire load, speed and operating conditions. Because those conditions can change between field work and road travel, the appropriate pressure may change as well.
In the field, operating at the appropriate pressure can create a larger tire footprint, helping support traction and reduce pressure on the soil. On the road, proper inflation helps the tire support the load and perform as intended at travel speeds.
Maintaining the appropriate tire pressure can also help promote even tire wear and tire longevity. Always use the pressure recommended for your specific tire, load, speed and operating conditions.
For tractors that frequently transition between field and road use, operators can adjust tire pressure manually or with a Central Tire Inflation System (CTIS). The difference is how those pressure changes are made.
Tractor tire pressure can be adjusted manually or with a Central Tire Inflation System (CTIS). Both approaches allow operators to set tire pressure for their operating conditions, but CTIS can make pressure changes more convenient when a tractor regularly transitions between field and road use.
Tractor equipped to automatically change tire pressure for the field.
Manual Adjustment | CTIS | |
|---|---|---|
How pressure is changed | Adjusted manually at the tire | Adjusted from the tractor cab |
Field-to-road changes | Requires stopping to adjust pressure | Allows pressure changes from the cab |
Operator involvement | Operator manually sets pressure | Operator selects the appropriate pressure setting |
Additional equipment | No CTIS equipment required | Requires a compatible CTIS |
CTIS can be particularly useful for operations that frequently transition between field and road conditions or need to change tire pressure multiple times during the workday.
For tractors that operate under relatively consistent conditions and require fewer pressure changes, manual adjustment may be sufficient. The decision should consider factors such as how frequently pressure needs to change, typical operating conditions and whether the tractor and tires are compatible with CTIS.
Regardless of the method used, tire pressure should be set according to the tire manufacturer's recommendations for the specific load, speed and operating conditions.
Man checking the tire pressure on a Roadbib tractor tire
A Central Tire Inflation System (CTIS) is not fully automatic. The operator still selects the appropriate tire pressure for the tractor's load, speed and operating conditions.
With CTIS, pressure settings can be configured for different operating situations. When conditions change, such as moving from the road to the field, the operator selects the appropriate setting and the system adjusts tire pressure from the tractor cab.
This makes it easier to change tire pressure without manually adjusting each tire, while still requiring the operator to choose the appropriate pressure for the operating conditions.
CTIS is better described as a pressure management system rather than a fully automatic system. It does not independently determine the correct tire pressure for every situation. The operator remains responsible for selecting the appropriate pressure setting.
Yes, some Central Tire Inflation Systems (CTIS) can manage tire pressure for both tractors and compatible farm trailers. This allows operators to adjust trailer tire pressure from the tractor cab along with the tractor tires.
Managing pressure across both the tractor and trailer can help operators adapt tire pressure to changing field and road conditions. Compatibility depends on the CTIS, trailer and tires being used, so confirm system requirements before installation.
Agricultural Trailer Tires
Learn more about farm tire care, maintenance and performance with these Michelin resources:
Find more Michelin resources, guidance and tire solutions for farm operations.
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