Backhoe and Tractor Tube Tire Replacement

[MikePhua]

Introduction
Replacing tube tires on backhoe and tractor wheels is a labor-intensive but essential maintenance task that ensures safe operation and machine performance. Tubed tires use an internal inflatable tube surrounded by the tire casing, requiring careful handling to prevent damage during removal and installation.
Preparation

• Raising the tractor or backhoe axle and securely blocking the machine provides safe access to the tire without removing the entire wheel assembly in many cases.
  
• Removing the valve core releases all air from the tire, making it easier to break the bead—where the tire seals against the rim.
  

Removing the Tire

• Break the bead carefully using tire irons or a hydraulic bead breaker. The bead is often firmly seated and requires consistent and even pressure to avoid rim or tire damage.
  
• Apply soapy water mixture or specialized tire lubricants to the bead area to facilitate smooth separation between tire and rim.
  
• Lever the tire sidewall over the rim flange starting with the smaller lip of the rim for easier removal using tire bars.
  
• Gradually work around the circumference, pulling one edge of the tire free, then flip the tire and repeat on the opposite side.
  

Removing and Replacing the Tube

• Once the tire casing is removed, extract the old tube carefully to avoid tearing if it is to be reused or inspected.
  
• Inspect the inside of the tire casing and rim for debris, rust, or sharp edges that could damage the new tube.
  
• Clean the rim thoroughly to ensure a smooth sealing surface.
  
• Insert the new tube into the tire, threading the valve stem through the rim hole.
  
• Slightly inflate the tube to give it shape and avoid pinching during tire reseating.
  

Installing the Tire

• Grease both the tire bead and rim flange lightly to ease tire mounting and prevent damage to the tube.
  
• Using tire bars, carefully work the tire bead over the rim flange, starting with one side and then the other.
  
• Ensure the tire and tube are properly seated and the tube is free from twists or pinches.
  
• Inflate the tire slowly to the manufacturer’s recommended pressure, monitoring for leaks or bead seating issues.
  
• Reinstall the wheel and torque lug nuts to factory specifications. The direction of the tread should be forward-facing if marked.
  

Tools and Tips

• Use tire irons or specialty tire spoons for leverage.
  
• A bead breaker tool or hydraulic assist can reduce physical effort and risk of tire damage.
  
• Valve core removal tools and compressed air sources enable controlled inflation and deflation.
  
• Always wear safety gloves and eye protection during removal and mounting.
  

Glossary

• Bead: The edge of the tire that seats tightly against the wheel rim.
  
• Valve Core: The small removable component inside the valve stem controlling air flow.
  
• Tire Bar (Tire Iron): A long, flat metal tool used to pry tires over the rim flanges.
  
• Tube: An inflatable rubber bladder inside the tire casing providing air retention.
  
• Bead Breaker: A tool or device used to separate the tire bead from the wheel rim.
  

Summary
Changing tubed tires on backhoes and tractors requires careful bead breaking, removal, tube replacement, and remounting processes to maintain safety and equipment performance. Using lubrication, specialized tools, and proper inflation techniques ensures the tire and tube are seated correctly without damage. Following manufacturer procedures and safety measures prolongs tire life and reduces downtime in demanding field operations.