Table 2-2. Unit Troubleshooting - continued
TEST OR INSPECTION
DISTRIBUTION PUMP ASSEMBLY - continued
High voltages in this equipment can cause serious injury or death. When applying power
during a test, take proper measures to ensure safety of personnel. Never work on
electrical equipment unless there is another person nearby who is familiar with the
operation and hazards of the equipment.
Step 2. Turn CB5 to OFF and disconnect pump at DISTRIBUTION PUMP jack (J5) on
Step 3. Turn CB5 to ON and check for 208 VAC, three phase power at J5.
If 208 VAC is not measured in all three tests (A-B, A-C and B-C), notify Direct
Step 4. Disconnect cable assembly at pump (Paragraph 2-21) and check cable for continuity.
If defective (open), replace cable assembly. Refer to paragraph 2-21.
If cable assembly is not defective, replace centrifugal pump. Refer
to Paragraph 2-22.
Step 5. Turn off generator and disconnect pump at distribution pump jack (J5) on junction box.
Step 6. Check for continuity between pins A-B, A-C and B-C and from pin D to A,B and C
If continuity, indicating a short is measured in any test, notify Direct Support Maintenance.
Step 7. Disconnect cable assembly at distribution pump assembly (Paragraph 2-21) and check it
If cable assembly is defective (shorted), replace it. Refer to paragraph 2-21
If cable assembly is not defective, replace centrifugal pump. Refer to paragraph 2-22.