I have a 1997 Arrow 500, the umbrella is in the spindle position, and when trying to start up the mill, the relays pull in but release within a couple seconds, with the main machine stating "machine not powered" . I cannot do anything, the pendant shows the umbrella in spindle lit. I tried pushing the unbrella back, but it must be under air pressure or it has a powerful spring, I cannot get it to the park position. Any suggestions?