(a) Service Bulletin 48 AS (e) Drawing D3719-1 showing motor control switchboard. Drawing D3719-3 showing control wiring schematic diagram (g) Drawing D3719-4 showing load wiring schematic diagram. (h) Drawing D3719-5 showing wiring diagram. (1) Drawing D3719-6 showing exterior wiring diagram. 2 February 1951 1-6