Deactivation of the Reservoir Air Pressure Switch and Check of the Reservoir Air Pressure of the Blue Hydraulic System

TASK 29-34-00-040-002-A
Deactivation of the Reservoir Air Pressure Switch and Check of the Reservoir Air Pressure of the Blue Hydraulic System

FIN: 2384GH
Task Summary

Access	Test	Specific Tools	Mhr	E/T	Nb Men
YES	NO	NO	0.3	0.3	1

1. Reason for the Job
MMEL 29-09-04A
HYD G(B)(Y) RSVR LO AIR PR ALERT
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific	2	CAP - PROTECTION
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	TIE WRAP(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
197FB

C. Referenced Information

REFERENCE	DESIGNATION
TASK 29-14-00-614-002-A	Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01	Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
Reservoir Air Pressure Switch of the Blue Hydraulic System

3. Job Set-up
Subtask 29-34-00-865-064-A

A. Open, safety and tag this(these) circuit breaker(s):

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

Subtask 29-34-00-010-053-A

B. Get Access
(1) Open the access door 197FB.
(2) Put an ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position to be satisfactory for the Blue reservoir.

4. Procedure
Subtask 29-34-00-040-051-A

A. Deactivation of the Reservoir Air Pressure Switch

Reservoir Air Pressure Switch of the Blue Hydraulic System

(1) Disconnect the electrical connector (1) 2384GH-A from the pressure switch.
(2) Install a CAP - PROTECTION on the disconnected connector (1) and on the receptacle.
(3) Use a TIE WRAP(S) and attach the disconnected cable to a part of the structure.

NOTE: Attach the cable to the structure so that the disconnected end of the connector points down. This prevents the contamination of the connector with oil or other liquids.

(4) Make an entry in the logbook.
(5) Look on the air pressure gages of the reservoir and make sure that the air pressure is not less than 37 psi.
(6) If necessary, pressurize the reservoir (Ref. AMM TASK 29-14-00-614-002).

5. Close-up
Subtask 29-34-00-410-053-A

A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform.
(3) Close the access door 197FB.

Subtask 29-34-00-865-068-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

[Rev.10 from 2021] 2026.04.01 00:28:01 UTC