Tube Repairs

Equipment required

Hand rasp and stitcher; vulcanising cement, tube patch and ground sheet.

Procedure to repair the tube

• Remove the tube and locate the injury.
• Remove the foreign matter; taking care as the object may be sharp.
  
• Mark out the damaged area with chalk.
  
• Select the patch to be applied.
  
• Ensure that the area (approx 1 50mm) around the injury is free from moisture.
  
• Roughen up [an area slightly larger than the patch] with the rasp.
  
• If the injury to the tube is a split, rounding off the ends of the split with scissors will prevent further splitting .
  
• Clean the area with a clean cloth or a buffing solution.
  
• Evenly apply the Vulcanising Cement and allow to dry thoroughly (about 5 minutes).
  
• Peel the backing away from the patch and centre over the injury. Do not touch the raw rubber.
  
• Firmly work the stitcher from the centre towards the edges until the patch is securely bonded to the tube.
  
• The repair is now complete.
  

Hint Remember to carefully check inside the tyre wall to ensure that no sharp objects remain.

 

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