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PROBLEM #1 (continued)
1. Chair or lift will not operate (continued).
PROBABLE CAUSE
TESTING PROCEDURE
CORRECTIVE ACTION
(14. continued)
14f. Disconnect lift
power cord from
supply
receptacle.
14g. Disconnect
programming
dials cord from
automatic
control board.
14h. Using an
across the
following
terminals on
programming
dials and for a
reading from
"infinite" to
"0." (Refer to
figure 2-1
[Control Board
portion].)
(a)
Terminals
4 and 6 when
bottom side of
automatic
control switch
is depressed.
(b)
Terminals 4
and 2 when top
side of switch
is depressed.
MD0373
A-7