Installation of the Blue Electric Pump Phase-Unbalance Detector

TASK 29-12-18-400-001-A
Installation of the Blue Electric Pump Phase-Unbalance Detector

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)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
822

C. Referenced Information

REFERENCE	DESIGNATION
TASK 29-12-00-710-002-A	Operational Test of the Phase Unbalance Detector and the Current Transformer of the Blue Hydraulic System
Blue Electric Pump Phase-Unbalance Detector

3. Job Set-up
Subtask 29-12-18-860-050-A

A. Aircraft Maintenance Configuration
(1) Make sure that the ACCESS PLATFORM 2M (6 FT) is in position at the access door 822.
(2) Open the access door 822.

Subtask 29-12-18-865-051-A

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

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	HYD/HYD PWR/B WARN/& CTL	2702GJ	C12
123VU	B HYD/ELEC PUMP	2701GJ	AB09

4. Procedure
Subtask 29-12-18-420-050-A

A. Installation of the Blue Electric Pump Phase-Unbalance Detector
(1) Install the detector (1) on the support.
(2) Install the washers (2) and the screws (3).
(3) Remove the blanking cap from the electrical connector (4).
(4) Connect the electrical connector (4) to the detector (1).

Subtask 29-12-18-865-052-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
49VU	HYD/HYD PWR/B WARN/& CTL	2702GJ	C12
123VU	B HYD/ELEC PUMP	2701GJ	AB09

Subtask 29-12-18-710-050-A

C. Operational Test
(1) Do the operational test of the detector (Ref. AMM TASK 29-12-00-710-002).

5. Close-up
Subtask 29-12-18-410-051-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] 2026.04.01 00:18:58 UTC