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PROBLEM #1 (continued)
1. Chair or lift will not operate (continued).
TESTING PROCEDURE
CORRECTIVE ACTION
PROBABLE CAUSE
16. Faulty
16a. Place the chair
16a. Replace the
in full
operating
condition (back
down and toe
up); actuate the
auto return
switch and
listen for a
clicking noise.
If noise is
heard, the relay
is faulty.
16b. Remove the relay
16b. Replace the
from the
junction box.
Using an
across terminal
A and B. If the
reading
approaches
infinity, the
MD0373
A-12