Repair
3A1570V 37
Transformer Primary Check
1. Turn main power OFF .
2. Locate the two smaller (10 AWG) wires coming out
of transformer. Trace these wires back to contactor
and circuit breaker (911). Use an ohmmeter to test
for continuity between two wires; there should be
continuity.
Transformer Secondary Check
1. Turn main power OFF .
2. Locate the two larger (6 AWG) wires coming out of
transformer. Trace these wires back to large green
connector under hose control module and circuit
breaker (909). Use an ohmmeter to test for
continuity between two wires; there should be
continuity.
If you are not sure which wire in green plug under
hose module connects to transformer, test both
wires. One wire should have continuity with the
other transformer wire in breaker (909) and the
other wire should not.
3. To verify transformer voltage, turn on hose zone.
Measure voltage from 178CB-2 to HPOD-1; see
Wiring Schematics, page 55.
* For 230 Vac line voltage.
Replace Transformer
1. Turn main power OFF . Disconnect power
supply.
2. Open Reactor cabinet.
3. Remove bolts holding transformer to cabinet floor.
Slide transformer forward.
4. Disconnect the transformer wires; see Wiring
Schematics, page 55.
5. Remove transformer from cabinet.
6. Install new transformer in reverse order.
Replace Circuit Breaker Module
1. Turn main power OFF . Disconnect power
supply. Turn circuit breakers on to test.
2. Follow the Pressure Relief Procedure, page 15.
3. Using an ohmmeter, check for continuity across
circuit breaker (top to bottom). If no continuity, trip
breaker, reset, and retest. If still no continuity,
replace breaker as follows:
a. Refer to electrical diagrams and table below.
Disconnect wires and remove bad breaker.
NOTE: To reference cables and connectors, see the
electrical diagrams and parts drawings in Wiring
Schematics, page 54 and 55.
F
IG
. 13: Circuit Breaker Module
Model Secondary Voltage
310 ft. 90 Vac*
210 ft. 62 Vac*
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