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F-90
TROUBLESHOOTING AND REPAIR
F-90
POWER WAVE 455/POWER FEED 10
5. Using the 7/16 in. wrench, remove the
eight transformer leads from the rectifi-
er modules. Label the leads and take
note of lead placement for reassembly.
Note that each screw has two flat
washers and one lock washer.
6. Remove leads #220 and #290 from the
rectifier thermostat.
7. Using the 7/16 in. wrench, remove the
four nuts and associated washers from
the heatsink mounting bolts. The heat-
sink assembly can be removed by care-
fully sliding the assembly forward and
removing the mounting bolts.
RECTIFIER ASSEMBLY
REMOVAL PROCEDURE
1. Remove input power to the Power
Wave 455.
2. Using the 3/8 in. nutdriver, remove the
case top and sides.
3. Perform the
Capacitor Discharge
Procedure.
4. Using the 9/16 in. wrench, remove the
positive output lead from the rectifier
heatsink. Refer to Figure F.26.
FIGURE F.26 — OUTPUT RECTIFIER AND MODULE REMOVAL AND REPLACEMENT.
TRANSFORMER
LEADS
RECTIFIER
MODULE
THERMOSTAT
HEATSINK
HEATSINK
MOUNT
BOLTS (4X)
POSITIVE
OUTPUT
LEAD
OUTPUT RECTIFIER AND MODULE REMOVAL AND REPLACEMENT
(continued)
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