page 4
TM9-6116-666-13
DANGEROUS
VOLTAGE EXISTS ON UVE CIRCUITS.
AL-
WAYS OBSERVE SAFETY PRECAUTIONS
AND NEVER
WORK ALONE. FAILURE TO OBSERVE
THIS WARNING
COULD RESULT IN SEVERE
PERSONAL
INJURY OR
DEATH.
NO
Measure voltage at
YES
-
N3/U, UR, R and N3/MP:
-
120 f 1 VAC?
v
.
v
NO
Repair or Replace
Measure voltage at
YES
cables ‘78” and ” 141”
-
NW, S and N3/MP:
120
f 1 VAC?
v
Repair or Replace
cable ‘79’
v
NO
Measure voltage at
-
N3#
and N3/MP:
120 f 1 VAC?
YES
Repair or Replace
cables ‘43” and ‘0”
NO
Measure voltage at
YES
K26115and K7lA2:
-
24 VDC?
Figure
5-15 UNDER/OVER
FREQUENCY
lamp lights
up during
operation
(sheet 3 of 6).
5 - 77
