Lucent Technologies Lineage
®
2000 25A Ferroresonant Rectifier J85502A-1
8 - 18 Spare Parts and Replacement Procedures
Issue 4 May 1998
•
To facilitate replacement, note the positions of all
quick-disconnect and other leads or header connectors
before removing.
•
In the case of the ac inductor L1, do not allow the male side
of the quick-disconnect connection to fall through hole 5
(H5 above L1) into the front compartment when
disconnecting the lead from L1.
•
In order to remove T2, connector P4 on the CM1 option
board (front compartment), must be disconnected and
passed through hole 4 (H4) to the rear compartment. (The
leads from T2 connect to P4.) It may be necessary to cut a
cable tie before P4 can be passed through to the rear
compartment.
•
Early production models of the J85502A-1 rectifier without
208/240 Vac switch S3, have an ac contactor designated
K1. Newer production rectifiers, containing S3, have a
contactor designated K3.
Main
Transformer (T1)
1. Disconnect T1 primary leads at the terminals of the ac
contactor K3.
2. Remove leads 1, 2, and 3 from contactor K3.
3. Refer to “Diode Heat Sink Assembly” and disconnect the
diode pigtail connections of leads 4 and 6. See “Rectifier
Diode Test and/or Replacement.”
4. Remove lead 5 from dc capacitor C1 by unscrewing the
connector from the negative bus.
5. Remove leads 7 and 8 from ac capacitor C5 by
disconnecting the quick-disconnect terminals.
Notes
This procedure assumes that the rectifier has been removed
from the bay and that all covers of the rectifier have been
removed.
Lead numbers refer to T1 unless otherwise noted.
