Ok if you have 24v showing the transformer may be ok? not sure why there is a need for a separate contactor between forward and reverse? will it run in reverse ok? if yes the the first contactor is duff (assuming the second contactor does not get fed from the first). Try swapping the first contactor with the second (make notes of all the connections as i see somebody has taken the trouble to number them). To replace all these conmponents would be cheaper to do than call somebody out and pay for the parts on top as well so consider a trip down to the electrical factors. Is the machine 3 or single phase?