Disassembly & Re-Assembly - Cal Power TrueWave TW5250 Service Manual

SERVICE MANUAL
Fault Symptom
Unit comes up normally. Upon
relay closure unit display "PS
FAULT 1" indicating that a
redundant overvoltage has
occurred.
Note: If the previous procedures fail to isolate the faulty module, contact the Elgar
Customer Service Department for additional assistance.
2.6 DISASSEMBLY & RE-ASSEMBLY
The following is the disassembly procedure for the TW system. Once disassembled, the
unit can be re-assembled by performing the following procedure in reverse and referring
to the Final Assembly drawing 5161469 located in Section 5 of this manual.
WARNING
Prior to beginning disassembly procedures, ensure that AC
power has been disconnected from the TW system.
During re-assembly of the unit, it is very important that all removed cable-ties and
adhesives are replaced and that cables are routed as they were originally. Incorrect
routing of cables could lead to fan blade obstruction resulting in noisy operation,
restricted airflow or cable damage. In addition, special care must be taken so that no
exposed connector pins are damaged or broken.
QUICK REFERENCE GUIDE
To Remove:
Fan Panel Assembly
Power Module or Amplifier
Housekeeping Board
Signal Board
Front Panel Assembly
Analog Board
Control Board
Rear Panel Assembly
MAINTENANCE AND TROUBLESHOOTING
Troubleshooting / Corrective Action
• Check external sense and power lead
wiring.
• If problem persists, de-energize unit and
perform disassembly steps 2.6.1 to 2.6.9.
Inspect the 5161489-01 cable for proper
installation. Re- assemble unit and test.
Perform Steps:
2.6.1 – 2.6.5
2.6.1 – 2.6.19
2.6.1 – 2.6.8
2.6.1 – 2.6.14
2.6.1 – 2.6.8
2.6.1 – 2.6.9
2.6.1 – 2.6.9
2.6.1 – 2.6.20
2-5