Repair
3A1570A 33
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 continu-
ity 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
Reactor A-25 Wiring Schematic, page 51.
* 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 Reactor
A-25 Wiring Schematic, page 51.
5. Remove transformer from cabinet.
6. Install new transformer in reverse order.
FIG. 11: Circuit Breaker Module
909
ti17999a
911
Model Secondary Voltage
310 ft. 90 Vac*
210 ft. 62 Vac*