2: This fuel pump uses the reciprocating action of rocker arm ABC. The arm is pinned at B and is spring loaded at A and D. Calculate the forces acting at pin B and in the spring at point D. E 30%- Fe= 125 N FA= 60 N BO D 50 mm 20 mm-+ 10 mm2: This fuel pump uses the reciprocating action of rocker arm ABC. The arm is pinned at B and is spring loaded at A and D. Calculate the forces acting at pin B and in the spring at point D. E 30%- Fe= 125 N FA= 60 N BO D 50 mm 20 mm-+ 10 mm