> I did this job around January this year. Get a dremel tool and a stack
> of cutting discs. Make sure the line is empty of fuel, the sparks from
> the cutting discs could start a fire. Cut off the clamps and easily
> pull them away with pliers.
> 

Sparks? Eek! Yeah, if it's dry it doesn't matter. A good set of Klein 
diagonal cutters cuts those crimp-on hose clamps quite well also.