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| TROUBLESHOOTING & REPAIR |
INPUT RECTIFIER REMOVAL AND REPLACEMENT (CONTINUED)
FIGURE F.18 – INPUT RECTIFIER REMOVAL AND REPLACEMENT
INPUT | C |
RECTIFIER | B |
| A |
NEG
POS (+)
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REMOVAL PROCEDURE
1.Remove input power to the Power Wave 455/R.
2.Using the 3/8” nut driver, remove the case top, sides, and input access panel.
3.Perform the Capacitor Discharge proce- dure.
4.Locate and remove the RTV sealant from the input rectifier connection terminals. See Figure F. 18.
5.Label and, using the phillips head screwdriv- er, carefully remove the five leads from the input rectifier terminals. Note placement for reassembly. See Figure F.18.
6.Using the 3/16” allen wrench, remove the two mounting screws and washers from the rectifier module.
7.Carefully remove the input rectifier module.
REPLACEMENT PROCEDURE
1.Clean heat sink surfaces.
2.Apply an even coating of joint compound (Penetrox
3.Mount the module to the heat sink and even- ly torque the mounting screws (with wash- ers) to 44 in/lbs.
4.Assemble the leads to the correct module terminals and torque to 26 in/lbs. See Figure F.18.
5.Apply RTV sealant to the rectifier connection terminals.
6.Install the case top, sides, and input access panel using the 3/8” nut driver.
