The front support arm of the Zip Dee main awning is stuck. I am unable to extend the arm so the awning can only stay at lowest position. That is not very convenient.<br/><br/>I have tried numerous method to unfreeze the arm.<br/><br/>Hot air gun to heat the tube<br/>use liberal amount of pb blaster to soak the tube<br/>use hammer to knock on the tube.<br/>Use tie-down strap to pull tube apart<br/>None of...