T O 35 C2-3-442-2
A5-1 and A5-15 (20-32 VDC), A5-13 and
replace whichever resistor measures open.
A5-15 (20-32 VDC), and terminals A5-2
and A5-14 (20-32 VDC). If there is no
voltage measured at terminals A5-2 to
for 120/208 volts and operating at rated
A5-14, replace the A5K5 relay.
speed and voltage, measure the voltage
across terminals A5-18 and A5-22. The
nominal voltage should read 120 VAC.
for 240/416 volts and operating at rated
speed and voltage, the voltage measured
to A5-20, and terminals A5-7 to A5-8 with
across terminals A5-18 and A5-22 should
an ohmmeter. The meter should read 2. 5K
be O volts AC. Measure the resistance
from terminals A5-19 to A5-20, and ter-
ohms. If the measurements are infinity,
minals A5-7 to A5-8 with an ohm-meter.
r e p l a c e resistor R7 or R8, if resistance
measured is 7.5K ohms, replace relay
The meter should read 7.5K ohms. If the
above measurement is 2.5K ohms, replace
Figure 6-22. Mode I and mode II relay box assembly, cover removed