
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