I have a copy of the timney instructions for my swede. They may work the same for the 03:
"The topmost screw, #2, "is the trigger pull adjustment. You may lighten the trigger by turning screw 2 counterclockwise.
The middle screw, #3, is the trigger backlash or overtravel adjustment. Do not adjust in too tightly as this will stop or slow the firing pin fall (this may be the problem).
The bottom screw #4, is the sear engagement adjustment. Sear engagement is pre-set at the factory when the trigger is tested. It should not be decreased below the pre-set amount"