Installation of the Transformer Rectifier

TASK 24-32-51-400-001-A
Installation of the Transformer Rectifier

WARNING: MAKE SURE THAT NO AC OR DC POWER IS CONNECTED TO THE AIRCRAFT ELECTRICAL CIRCUITS. THERE IS A RISK OF ELECTROCUTION IF THE AC OR DC POWER STAYS CONNECTED.

ZONE: 126
FIN: 1PU1
FIN: 1PU2

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific	Torque wrench: range to between 0.7 and 0.6 m.daN (61.95 and 53.10 lbf.in )
No specific	Torque wrench: range to between 1.6 and 1.5 m.daN (11.80 and 11.06 lbf.ft )

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
126	LATERAL AVIONIC COMPARTMENT
822

C. Referenced Information

REFERENCE	DESIGNATION
TASK 24-32-00-710-001-A	Operational Test of the DC Generation Switching
Transformer Rectifier

3. Job Set-up
Subtask 24-32-51-865-051-A

A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
FOR FIN: 1PU1 (TR1)
123VU	TR1/SPLY	2PU1	AB10
FOR FIN: 1PU2 (TR2)
123VU	TR2/SVCE/BUS 2/SPLY	1XX	AB08
123VU	TR2/214XP/SPLY	2PU2	AB04

Subtask 24-32-51-010-051-A

B. Get access to the avionics compartment.
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in positon at the access door 822.
(2) Make sure that the access door 822 is open.

4. Procedure
Subtask 24-32-51-420-050-A

A. Installation of the Transformer Rectifier
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Engage the transformer rectifier (1) on the centering pins to put it in position.
(4) Install the washers (10) and the screws (11) and then tighten the screws.
(5) Remove the CAP-BLANKING from each electrical connector and receptacle.
(6) Make sure that all the electrical connections are clean and in the correct condition.
(7) Connect the connectors (6) to the transformer rectifier.
(8) Remove the insulating sleeves from the lugs (3).
(9) Connect the lugs (3) to the output terminals (2) of the transformer rectifier.
(10) Install the washer (4) and the nut (5) and TORQUE it to between 1.6 and 1.5 m.daN (11.80 and 11.06 lbf.ft )

.
(11) Install the washer (9) and the nut (8) and TORQUE it to between 0.7 and 0.6 m.daN (61.95 and 53.10 lbf.in )

.
(12) Install the protective caps (7) on the output terminals (2).

Subtask 24-32-51-865-052-A

B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
FOR FIN: 1PU1 (TR1)
123VU	TR1/SPLY	2PU1	AB10
FOR FIN: 1PU2 (TR2)
123VU	TR2/SVCE/BUS 2/SPLY	1XX	AB08
123VU	TR2/214XP/SPLY	2PU2	AB04

Subtask 24-32-51-710-050-A

C. Do an operational test of DC Generation Switching (Ref. AMM TASK 24-32-00-710-001)

NOTE: Before you start the operational test, you must reset the transformer rectifier from the CFDS.

5. Close-up
Subtask 24-32-51-410-050-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 822.
(3) Remove the access platform(s).

[Rev.10 from 2021] 2026.03.31 23:23:23 UTC