The figure shows a wheel puller which is designed to remove a V$-$belt pulley $\backslash ($ P $\backslash )$ from its tight$-$fitting shaft $\backslash ($ S $\backslash )$ by tightening of the central screw. If the pulley starts to slide off the shaft when the compression in the screw has reached $1\mathrm{.}4$ kN $,$ calculate the magnitude of the force supported by each jaw at $\backslash ($ A $\backslash ).$ The adjusting screws $\backslash ($ D $\backslash )$ support horizontal force and keep the side arms parallel with the central screw.

Answer: $\backslash ($ A$=\backslash )$

kN