Lucent Technologies Lineage
®
2000 125A Ferroresonant Rectifier J85502C-1
8 - 20 Spare Parts and Replacement Procedures
Issue 8 July 1999
2. Loosen all six of the terminal screws on contactor K1.
(Note that in addition to the six cables to be removed, there
are three terminals that are attached to quick-disconnect
connectors. Do not disconnect the quick-disconnect
connectors, just remove the three terminals from K1).
Noting their positions, remove the six cables and the two
other leads to the coil tabs at the top of the contactor.
3. To remove K1, completely remove all four of the corner
mounting nuts from the rear wall studs.
Transformer (T2)
1. Perform the steps in “Diode Heat Sink Assembly” in this
section to move the diode heat sink completely out of the
way.
2. Remove the three quick-disconnect connectors coming
from ac input leads #1, #2, and #3 terminal tabs on the top
of the K1 contactor.
3. Remove the other three quick-disconnect connectors (leads
#4, #5, and #6) from their connection points in the wiring
harness.
4. Remove the two mounting nuts to free T2.
Main
Transformer (T1)
This procedure assumes that the rectifier has been removed
from the bay and that the top cover of the rectifier has been
removed.
The first seven steps of this procedure apply to both 24-volt and
48-volt versions of the J85502C-1 rectifier. Steps 8 through 11
are additional steps required only for the 48-volt version. Step 12
is the procedure to actually remove the disconnected transformer
(T1) from the rectifier cabinet.
1. Remove the insulation tape from leads 6 and 8 on the
secondary winding of the T1 transformer. Remove the
bolted connections from the exposed connection point of
these leads to the flexible leads from the rectifying diodes
Note
Transformer (T2) is mounted on the ac capacitor bracket, just
below C11.