Installation of the Relay

TASK 28-46-45-400-001-A
Installation of the Relay

FIN: 56QJ ** ON A/C NOT FOR ALL
FIN: 57QJ ** ON A/C NOT FOR ALL

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

REFERENCE	QTY	DESIGNATION
No specific	AR	ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
822

C. Referenced Information

REFERENCE	DESIGNATION
Relay (56QJ and 57QJ) - Location and Detail

3. Job Set-up
Subtask 28-46-45-010-051-A ** ON A/C NOT FOR ALL

A. Get Access
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position at the access door 822 of the electronics compartment.
(2) Make sure that the access door 822 is open.
(3) Make sure that the access door 103VU (5) is open.

Subtask 28-46-45-865-051-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 56QJ (RELAYHI LVL IND, ACT 1)
121VU	ACT1/REFUEL & SPLY	33QU	L29
** ON A/C NOT FOR ALL
FOR FIN: 57QJ (RELAYCTL HI LVL, IND ACT 2)
121VU	ACT2/REFUEL & SPLY	34QU	L28

4. Procedure
Subtask 28-46-45-420-050-A ** ON A/C NOT FOR ALL

A. Installation of the Relay
(1) Put the relay (3) in position on the barrels (2) of the base (1).
(2) Tighten the screws (4).

Subtask 28-46-45-865-052-A ** ON A/C NOT FOR ALL

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C NOT FOR ALL
FOR FIN: 56QJ (RELAYHI LVL IND, ACT 1)
121VU	ACT1/REFUEL & SPLY	33QU	L29
** ON A/C NOT FOR ALL
FOR FIN: 57QJ (RELAYCTL HI LVL, IND ACT 2)
121VU	ACT2/REFUEL & SPLY	34QU	L28

5. Close-up
Subtask 28-46-45-410-050-A ** ON A/C NOT FOR ALL

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the access door 103VU (5).
(3) Close the access door 822.
(4) Remove the access platform(s).

[Rev.10 from 2021] 2026.04.02 06:18:18 UTC