Pfaff 145 presser foot spring too heavy ?

[DFH]

I have been reluctant to post this because I thought the solution would come to me . After last weeks tune up it sews good . The only thing that i am not happy with is it has to much presser on the feet . My machine has the adjusting screw coming down through the back foot bar .  I have had it apart there is a flat coil spring on the outside  and a spring on the inside with a rod that the adjustment screw engages compressing the inter spring . The outside spring is dominant and the thumb screw seems to have no effect  on reducing presser . 

Should I be able to bring the presser to almost nothing or is what ever the outside coil spring produces  the minimum ? Thanks for any incite on the issue Donny   

[shoepatcher]

I have seen coiled springs cut down because they initially had to much pressure for the application. I would start by taking a link out a time and see if that changes the pressure on the foot.

glenn