does any one know how to tighten the tension on a coupler to a keg ?

[Cellarman46]

Supposably ... When a keg is droped into a cellar and gets a smack the tube inside gets fkud and the beer doesnt draw properly..... Acoording to some.... Whatevee the reason some kegs dont let the beer draw properly...if you put some levrage on the coupler handle the beer draws fine... When i get a " difficult keg " i just stack 2 full kegs and slide the 'difficult' next to it. Then tilt the stacked keg so it rests on the lever...

Is there is a way.to manually tighten the tension on the lever ?

Thanks.