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Manual 26824
CPC-II Unit Replacement Procedure
iv
Woodward
Illustrations and Tables
Figure 1-1. CPC-DX main components. ................................................................. 3
Figure 1-2. CPC-DX Installation Drawing, Front view. ........................................... 4
Figure 1-3. CPC-DX Installation Drawing, Top view. ............................................. 4
Figure 1-4. CPC-DX Installation Drawing, customer interface view. ...................... 5
Figure 1-5. CPC’s wiring diagram ........................................................................... 6
Figure 1-6. Electrical Terminal Box, wiring diagram ............................................... 7
Figure 2-1. Saving CPC-II Settings File (creating back-up). .................................. 9
Figure 2-2. Unit In Control verification using CPC-DX pressure gauges. ............ 10
Figure 2-3. Unit In Control verification using CPC-DX pressure gauges ............. 10
Figure 2-4. Unit In Control verification using CPC-DX pressure gauges ............. 11
Figure 2-5. Wiring Connections for Master Designation....................................... 11
Figure 2-6. Power Supply Input Connections ....................................................... 12
Figure 2-7. Isolation valve OPEN / CLOSED lever position ................................. 13
Figure 2-8. Control Isolation valve CLOSED and locked-out with padlock .......... 13
Figure 2-9. Open/ Close markings on isolation locking plate. .............................. 13
Figure 2-10. Supply Isolation valves CLOSED and locked-out with padlock ....... 14
Figure 2-11. CPC-DX Installation Drawing, Drain ports location .......................... 15
Figure 3-1 CPC-II voltage measurement and verification. ................................... 18
Figure 3-2 TWIN - Terminals system handling. .................................................... 18
Figure 3-3 Replaced CPC-II wires disconnected inside Electrical Terminal box. 19
Figure 3-4. Unscrew a conduit nut from Electrical Terminal Box fitting (CCW
direction) .......................................................................................... 19
Figure 3-5. Lifting strap installation....................................................................... 20
Figure 3-6. Lifting strap properly installed. ........................................................... 20
Figure 3-7. Lifting slug properly installed (CPC-II unit on the CPC-DX hydraulic
manifold). ......................................................................................... 20
Figure 3-8. Long socket wrench ........................................................................... 21
Figure 3-9. CPC-II mounting bolts view (bottom of the hydraulic manifold). ........ 21
Figure 3-10. CPC-II mounting bolts unscrewing (CCW direction). ....................... 22
Figure 3-11. Oil spillage from removed CPC-II unit. ............................................. 22
Figure 3-12. Fitting with installed plastic plug. ...................................................... 23
Figure 3-13. CPC-DX manifold with secured hydraulic passages after CPC-II unit
removal. ........................................................................................... 23
Figure 3-14. CPC-II unit removed from CPC-DX assembly. ................................ 23
Figure 4-1. Loosening CPC-II cover retaining clamp (CCW direction). ............... 24
Figure 4-2. Loosening CPC-II cover with bar. ..................................................... 24