PROBLEM I. Chair or lift will not operate (continued).
13. Faulty relay.
13a. Place the chair in full operating 13a. Replace the relay.
condition (back down and toe up);
actuate the doctor's bottom switch
and listen for a clicking noise. If
noise is heard, the relay is faulty.
13b. Remove the relay from the
13b. Replace the relay.
terminal A and B. If the reading
approaches infinity, the relay is bad.